Older GCN Circulars Archive

1. Circulars 20000-20999
2. Other Circulars

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1) Listed in reverse serial number order -- newest first: 20000 - 20999:

• 20999 GRB 170405A, Swift-BAT refined analysis
  
• 20998 GRB 170405A: Etelman observatory optical observations
  
• 20997 GRB 170405A: Swift-XRT refined Analysis
  
• 20996 GRB 170405A: RATIR Optical and NIR Observations
  
• 20995 Konus-Wind observation of GRB 170405A
  
• 20994 GRB 170405A: LCO FTN observations
  
• 20993 Trigger 745966: Swift detection of 4U1850-03
  
• 20992 GRB 170405A: ISON/Terskol optical observations
  
• 20991 GRB 170405A: Watcher optical detection
  
• 20990 GRB 170405A: Redshift from OSIRIS/GTC
  
• 20989 GRB 170405A: TAROT Reunion observatory optical observations
  
• 20988 GRB 170405A: NOT optical observations
  
• 20987 GRB 170405A: Fermi-LAT detection
  
• 20986 GRB 170405A: Fermi GBM observation
  
• 20985 GRB 170405A: Enhanced Swift-XRT position
  
• 20984 GRB 170405A: Swift detection of a burst with an optical counterpart
  
• 20983 LIGO/Virgo G275697: Update on significance from offline analyses
  
• 20982 LIGO/Virgo G275404: Update on significance from offline analyses
  
• 20981 LIGO/Virgo G275404: European VLBI Network (EVN) follow-up of the near-IR transient in the AGL J1914+1043 field
  
• 20980 GRB 170402A CALET Gamma-Ray Burst Monitor detection
  
• 20979 GRB 170330A CALET Gamma-Ray Burst Monitor detection
  
• 20978 GRB 170325A: optical observations, possible OT/host detection
  
• 20977 Konus-Wind observation of GRB 170403A (short/hard)
  
• 20976 IPN Triangulation of GRB 170403A (short)
  
• 20975 GRB 170403A: Fermi GBM observation
  
• 20974 Konus-Wind observation of GRB 170330A
  
• 20973 IceCube-170321A: Konus-Wind upper limits
  
• 20972 Swift Trigger 745090 is a noise trigger near NGC 5195
  
• 20971 Fermi-LAT Gamma-ray Observations of IceCube-170321
  
• 20970 Swift triggered on SAX J1806.5-221
  
• 20969 GRB 170330A: AstroSat CZTI detection
  
• 20968 GRB 170330A: Swift-BAT refined analysis
  
• 20967 GRB 170331A: Swift-BAT refined analysis
  
• 20966 DOAO 1m telescope V, R, I observation of GRB 170317A
  
• 20965 GRB 170331A: Swift/UVOT Upper Limits
  
• 20964 IceCube-170321A: Swift-XRT observations
  
• 20963 GRB 170330A: Swift-XRT refined Analysis
  
• 20962 GRB 170331A: Swift-XRT refined Analysis
  
• 20961 GRB 170330A: Enhanced Swift-XRT position
  
• 20960 GRB 170331A: Enhanced Swift-XRT position
  
• 20959 GRB 170330A: Swift/UVOT Detection of a Fading Afterglow
  
• 20958 GRB 170325A: 15 GHz upper limits from AMI
  
• 20957 GRB 170318B: 15 GHz upper limits from AMI
  
• 20956 GRB 170318A: 15 GHz upper limits from AMI
  
• 20955 GRB 170317A: 15 GHz upper limits from AMI
  
• 20954 GRB 170330A: LCO Cerro Tololo observations
  
• 20953 LIGO/Virgo G275697: LOFAR follow-up
  
• 20952 Konus-Wind observation of GRB 170329A
  
• 20951 GRB 170329A: AstroSat CZTI detection
  
• 20950 IBAS trigger 7789 is not a GRB
  
• 20949 GRB 170331A: LCO Sutherland observations
  
• 20948 GRB 170331A: Prompt enhanced Swift-XRT position
  
• 20947 Fermi trigger 512347439/GRB 170327A: MASTER-SAAO possible OT detection
  
• 20946 GRB 170331A: Swift detection of a burst
  
• 20945 GRB 170330A: Prompt enhanced Swift-XRT position
  
• 20944 GRB 170330A: Swift detection of a burst
  
• 20943 GRB 170329A: Fermi GBM detection
  
• 20942 GRB 170329A: Fermi-LAT detection
  
• 20941 GRB 170325B: POLAR Observation
  
• 20940 GRB 170325A: Fermi GBM observation
  
• 20939 LIGO/Virgo G277583: Konus-Wind observations
  
• 20938 GRB 170325A, Swift-BAT detection of a short GRB
  
• 20937 INTEGRAL pointed follow-up of IceCube-170321A
  
• 20936 LIGO/Virgo G277583: Fermi GBM Observations
  
• 20935 Konus-Wind observation of GRB 170320A
  
• 20934 GRB 170320A: POLAR Observation
  
• 20933 LIGO/Virgo G277583: INTEGRAL search for an X-ray and gamma-ray counterpart
  
• 20932 Fermi GBM Observation of IceCube-170321A
  
• 20931 LIGO/Virgo G275697: AMI Large Array Search for a Radio Afterglow
  
• 20930 Fermi GBM trigger 511851891/170322212 is not a GRB
  
• 20929 IceCube-170321A - IceCube observation of a high-energy neutrino candidate event
  
• 20928 INTEGRAL SPI-ACS observation of AMON IceCube EHE 80305071 129307
  
• 20927 IPN Triangulation of GRB 170320A (long/intense)
  
• 20926 Search for counterpart to IceCube-170321A with ANTARES
  
• 20925 GRB 170318A: KAIT Optical Upper Limit
  
• 20924 GRB 170317A: Mondy optical observations
  
• 20923 GRB 170318B: Swift-BAT refined analysis
  
• 20922 GRB 170317A: POLAR observation
  
• 20921 GRB 170318B: RATIR Optical and NIR Observations
  
• 20920 GRB 170317A: RATIR Optical and NIR Observations
  
• 20919 GRB 170318B: Swift/UVOT Upper Limits
  
• 20918 GRB 170318B: Swift-XRT refined Analysis
  
• 20917 GRB 170318A: Swift-XRT refined Analysis
  
• 20916 LIGO/Virgo G277583: CALET Observations
  
• 20915 GRB 170318A: RATIR Optical and NIR Observations
  
• 20914 GRB 170318A: Swift/UVOT Upper Limits
  
• 20913 GRB 170318B: Fermi GBM observation
  
• 20912 GRB 170318A: Swift-BAT refined analysis
  
• 20911 GRB 170317A: RATIR Optical and NIR Observations
  
• 20910 GRB 170318B: Enhanced Swift-XRT position
  
• 20909 GRB 170318B: Prompt enhanced Swift-XRT position
  
• 20908 GRB 170318B: Swift detection of a burst
  
• 20907 GRB 170318A: Enhanced Swift-XRT position
  
• 20906 GRB 170315A: POLAR observation
  
• 20905 GRB 170318A: Prompt enhanced Swift-XRT position
  
• 20904 GRB 170318A: Swift detection of a burst
  
• 20903 IceCube-170312A: MASTER follow-up observations
  
• 20902 LIGO/Virgo G277583: Asiago spectroscopic classification of ATLAS17byo and ATLAS17cgg
  
• 20901 GRB 170317A: LCO FTN observations
  
• 20900 LIGO/Virgo G277583 : MAXI/GSC observations
  
• 20899 GRB 170317A: MITSuME Okayama Optical Observation
  
• 20898 LIGO/Virgo G275404: P200/DBSP Classification of iPTF Candidates
  
• 20897 LIGO/Virgo G277583: P200/DBSP Classification of ATLAS Candidates
  
• 20896 GRB 170317A: Swift-BAT refined analysis
  
• 20895 LIGO/Virgo G277583: AstroSat CZTI upper limits
  
• 20894 GRB 170317A: Swift/UVOT Detection
  
• 20893 GRB 170317A: Mondy optical observations
  
• 20892 GRB 170317A: MITSuME Okayama Ks-band upper-limit
  
• 20891 GRB 170317A: Swift-XRT refined Analysis
  
• 20890 IceCube-170312A: Swift-XRT observations
  
• 20889 GRB 170317A: GMG observation
  
• 20888 GRB 170317A : Xinglong TNT optical observation
  
• 20887 GRB 170317A: Enhanced Swift-XRT position
  
• 20886 GRB 170317A: ISON-Ussuriysk aferglow confirmation
  
• 20885 GRB 170317A: Swift detection of a burst with an optical counterpart
  
• 20884 LIGO/Virgo G275697: Swift-XRT source 23 no longer fading
  
• 20883 LIGO/Virgo G277583: Swift/BAT data search
  
• 20882 LIGO/Virgo G277583: Discovery Channel Telescope Follow-Up of ATLAS17cck
  
• 20881 LIGO/Virgo G277583: ATLAS coverage and transients over the first 2 days
  
• 20880 GRB 170307A: 15 GHz upper limit from AMI
  
• 20879 LIGO/Virgo G277583: ATLAS17cck is likely a minor planet
  
• 20878 LIGO/Virgo G277583: GROND follow up of ATLAS17cck
  
• 20877 LIGO/Virgo G277583: ATLAS17cck - a fast declining transient
  
• 20876 LIGO/Virgo G275697: DLT40 follow-up observation
  
• 20875 LIGO/Virgo G274296: DLT40 follow-up observation
  
• 20874 LIGO/Virgo G275697: Fermi-LAT search for a high-energy gamma-ray counterpart
  
• 20873 LIGO/Virgo G277583: ERRATUM LV GCN 20871: TAROT Calern (TCA) observations
  
• 20872 GRB 170311B: AstroSat CZTI detection
  
• 20871 LIGO/Virgo G277583: TAROT Calern (TCA) observations
  
• 20870 LIGO/Virgo G277583: SVOM/Mini-GWAC observations of the initial skymap
  
• 20869 LIGO/Virgo G275404: Medicina radio follow-up of near-infrared
  
• 20868 Fermi GBM trigger 510642159/170308210 is not a GRB
  
• 20867 LIGO/Virgo G277583: INTEGRAL was inactive at the time of the event
  
• 20866 LIGO/Virgo G277583 ANTARES search
  
• 20865 Konus-Wind observation of GRB 170311B
  
• 20864 LIGO/Virgo G277583: AGILE GRID observations
  
• 20863 LIGO/Virgo G277583: AGILE MCAL observations
  
• 20862 LIGO/Virgo G270580: optical observations and classification of PS and MASTER sources
  
• 20861 LIGO/Virgo G277583: IceCube neutrino observations
  
• 20860 LIGO/Virgo G277583: Identification of a GW Burst Candidate
  
• 20859 IPN Triangulation of GRB 170311B (long/very intense)
  
• 20858 GRB 170311A: VLT observations
  
• 20857 IceCube-170312A - IceCube update on a high-energy neutrino candidate event
  
• 20856 INTEGRAL observation of IceCube HESE 65274589 129281
  
• 20855 GRB 170311A: Swift-BAT refined analysis
  
• 20854 LIGO/Virgo G275697: GRAWITA NOT optical observations of Swift/XRT Source 23
  
• 20853 GRB 170311A: Further GROND analysis
  
• 20852 GRB 170311A: Swift-XRT refined Analysis
  
• 20851 GRB 170311A: Swift/UVOT Upper Limits
  
• 20850 GRB 170311A: Enhanced Swift-XRT position
  
• 20849 SN MASTER OT J042250.16-820415.4 is the possible optical counterpart of the gravitational waves event LIGO/Virgo G274296
  
• 20848 GRB 170311A: GROND upper limits
  
• 20847 GRB 170311A: MASTER-OAFA early optical observations
  
• 20846 GRB 170311A: Swift detection of a burst
  
• 20845 GRB 170309A: POLAR Observation
  
• 20844 GRB170306A: SALT observations
  
• 20843 GRB 170306A: GROND afterglow detection
  
• 20842 LIGO/Virgo G275404: Swift-XRT observations of sources in the AGILE error region
  
• 20841 LIGO/Virgo G275697: Swift-XRT source 23 is fading
  
• 20840 LIGO/Virgo G275404: Updated localization from LIGO data
  
• 20839 GRB 170306B: POLAR observation
  
• 20838 GRB 170307A (trigger 741528): Swift-BAT refined analysis
  
• 20837 GRB 170305A: POLAR observation
  
• 20836 Swift trigger 741567: MASTER red star flare detection
  
• 20835 GRB 170307A: Fermi GBM observation
  
• 20834 LIGO/Virgo G275404 and AGL J1914+1043: INTEGRAL follow-up
  
• 20833 LIGO/Virgo G275697: Updated localization from LIGO data
  
• 20832 Swift Trigger 741528: a possible GRB
  
• 20831 Konus-Wind observation of GRB 170306B
  
• 20830 GRB 170306B: Swift-XRT observations
  
• 20829 GRB 170306A, Swift-BAT refined analysis
  
• 20828 GRB 170306A: Swift-XRT refined Analysis
  
• 20827 GRB 170306B: Fermi GBM detection
  
• 20826 GRB 170306B: Fermi-LAT detection
  
• 20825 GRB 170306B: Tiled Swift observations
  
• 20824 IPN Triangulation of GRB 170305A (short)
  
• 20823 GRB 170306A: Swift/UVOT Upper Limits
  
• 20822 GRB 170306A: GROND observations
  
• 20821 LIGO/Virgo G275697: Further Swift-XRT sources
  
• 20820 GRB 170306A: LCO Cerro Tololo observations
  
• 20819 GRB 170306A: Swift detection of a burst
  
• 20818 GRB170305A: Fermi GBM detection
  
• 20817 LIGO/Virgo G275697: P200/DBSP Classification of iPTF Candidates
  
• 20816 LIGO/Virgo G275404: P200/DBSP Classification of iPTF Candidates
  
• 20815 LIGO/Virgo G275697: Liverpool Telescope classification of EM candidates
  
• 20814 LIGO/Virgo G275404: Liverpool Telescope classification of EM candidates
  
• 20813 GRB 170304A: Fermi GBM observation
  
• 20812 LIGO/Virgo G275697: Further Swift-XRT sources
  
• 20811 LIGO/Virgo G275404: HAWC follow-up
  
• 20810 LIGO/Virgo G275404: PIRATE Observations
  
• 20809 LIGO/Virgo G275404: Liverpool Telescope classification of EM candidates
  
• 20808 LIGO/Virgo G275697: Liverpool Telescope classification of EM candidates
  
• 20807 LIGO/Virgo G275697: Further Swift-XRT sources
  
• 20806 Konus-Wind observation of GRB 170228A
  
• 20805 Fermi GBM trigger 510207699/170303182 is not a GRB
  
• 20804 LIGO/Virgo G275697: MAXI/GSC observations
  
• 20803 GRB 170228B CALET Gamma-Ray Burst Monitor detection
  
• 20802 LIGO/Virgo G275697: Additional iPTF Optical Transient Candidates
  
• 20801 LIGO/Virgo G275404: Additional iPTF Optical Transient Candidates
  
• 20800 LIGO/Virgo G275404: Nearby Galaxies in the Localization Volume
  
• 20798 LIGO/Virgo G275697: Further Swift-XRT sources
  
• 20797 LIGO/Virgo G275697: Fermi GBM Upper Limits
  
• 20796 LIGO/Virgo G275697: AstroSat CZTI upper limits
  
• 20795 LIGO/Virgo G275697: optical spectroscopy of Swift/XRT source 1
  
• 20794 LIGO/Virgo G268556, G270580, G274296, and G275404: Konus-Wind observations
  
• 20793 LIGO/Virgo G275697: SVOM/Mini-GWAC observations of the initial skymap
  
• 20792 GRB 170228B: POLAR Observation
  
• 20791 LIGO/Virgo G275697: iPTF Optical Transient Candidates
  
• 20790 LIGO/Virgo G275404: iPTF Optical Transient Candidates
  
• 20789 LIGO/Virgo G275404: Fermi GBM Upper Limits
  
• 20788 GRB 170228A: AstroSat CZTI detection
  
• 20787 GRB 170206B: 15 GHz upper limits from AMI
  
• 20786 GRB 170228A: Fermi GBM observation
  
• 20785 GRB 170228A: Fermi-LAT detection
  
• 20784 LIGO/Virgo G275404: A near-infrared transient in the error circle of AGL J1914+1043
  
• 20783 LIGO/Virgo G275697: CALET Observations
  
• 20782 LIGO/Virgo G275697: MASTER automatic follow up detection
  
• 20781 LIGO/Virgo G275697: CNEOST optical observations
  
• 20780 LIGO/Virgo G274296 and G275404 : MAXI/GSC observations
  
• 20779 LIGO/Virgo G275404: Nearby galaxy observations by J-GEM collaboration
  
• 20778 LIGO/Virgo G275404: Nearby Galaxies in the Localization Region
  
• 20777 LIGO/Virgo G275697: Fermi-LAT search for a high-energy gamma-ray counterpart
  
• 20776 LIGO/Virgo G275697: REM optical/NIR observations
  
• 20775 LIGO/Virgo G275697: Konus-Wind observations
  
• 20774 LIGO/Virgo G275404: CNEOST optical observations
  
• 20773 LIGO/Virgo G275697: Swift-XRT sources
  
• 20772 LIGO/Virgo G275697: Swift/BAT data search
  
• 20771 LIGO/Virgo G275404: MASTER bright PSN detected on 27 Feb from the maximum of probability of LIGO localization
  
• 20770 LIGO/Virgo G275697: AGILE-GRID preliminary analysis
  
• 20769 LIGO/Virgo G275697: AGILE MCAL Observations
  
• 20768 LIGO/Virgo G275697: INTEGRAL search for a prompt gamma-ray counterpart
  
• 20767 LIGO/VIRGO G275697: Fermi GBM Observations
  
• 20766 LIGO/Virgo G275404: AstroSat CZTI upper limits
  
• 20765 LIGO/Virgo G275697 ANTARES search
  
• 20764 LIGO/Virgo G275697: IceCube neutrino observations
  
• 20763 LIGO/Virgo G275697: Identification of a GW CBC Candidate
  
• 20762 LIGO/Virgo G275404: Keck LRIS classification of MASTER PSN candidate
  
• 20761 LIGO/Virgo G274296: MASTER new PSN detected on 22 feb
  
• 20760 LIGO/Virgo G275404: REM optical/NIR observations
  
• 20759 LIGO/Virgo G275404: MASTER PSN detection from the maximal probability LIGO region
  
• 20758 LIGO/Virgo G275404: MASTER OT is outside LIGO error region
  
• 20757 LIGO/Virgo G275404: Keck spectrum of MASTER OT J105958.00-115756.5
  
• 20756 LIGO/Virgo G275404: Fermi-LAT search for a high-energy gamma-ray counterpart
  
• 20755 LIGO/Virgo G275404: INTEGRAL search for a prompt gamma-ray counterpart
  
• 20754 LIGO/Virgo G275404: AGILE-GRID detection of a possible gamma-ray transient
  
• 20753 LIGO/Virgo G275404: NOT Follow-up of MASTER OT
  
• 20752 LIGO/Virgo G275404: Swift-XRT sources
  
• 20751 LIGO/Virgo G275404 ANTARES search
  
• 20750 LIGO/Virgo G275404: Follow-up of MASTER OT J173532.70+103810.5
  
• 20749 GRB 170222A: CALET Gamma-Ray Burst Monitor detection
  
• 20748 LIGO/Virgo G275404: MASTER bright OT detection
  
• 20747 LIGO/Virgo G274296: P200 classification of EM candidates
  
• 20746 LIGO/Virgo G275404: Swift/BAT data search
  
• 20745 LIGO/Virgo G275404: SVOM/Mini-GWAC: Observations of initial skymap
  
• 20744 LIGO/Virgo G274296: Swift/BAT data search
  
• 20743 LIGO/Virgo G275404: AGILE-GRID preliminary analysis
  
• 20742 LIGO/Virgo G275404: Fermi GBM Observations
  
• 20741 LIGO/Virgo G275404: AGILE MCAL observations
  
• 20740 LIGO/Virgo G275404: MASTER Tunka OT detection
  
• 20739 LIGO/Virgo G275404: IceCube neutrino observations
  
• 20738 LIGO/Virgo G275404: Identification of a GW CBC Candidate
  
• 20737 LIGO/Virgo G275404: MASTER automatic follow up observations
  
• 20736 LIGO/Virgo G274296: GRAWITA-Campo Imperatore observation
  
• 20734 LIGO/Virgo G274296: Liverpool Telescope classification of EM candidates
  
• 20733 GRB 170220A: POLAR Observation
  
• 20732 LIGO/Virgo G274296: MASTER new OT
  
• 20731 Konus-Wind observation of GRB 170222A
  
• 20730 LIGO/Virgo G274296: CALET Observations
  
• 20729 GRB 170222A: Swift-XRT observations
  
• 20728 GRB 170222A: Fermi GBM observation
  
• 20727 LIGO/Virgo G274296: HAWC follow-up
  
• 20726 GRB 170222A: Tiled Swift observations
  
• 20725 GRB 170222A: Swift ToO observations
  
• 20724 LIGO/Virgo G274296: No change to estimate of LIGO false alarm probability
  
• 20723 LIGO/Virgo G274296: PIRATE Observations
  
• 20722 IPN Triangulation of GRB 170222A (short/hard)
  
• 20721 LIGO/Virgo G274296: PS17bek is a superluminous supernova at z=0.31
  
• 20720 LIGO/Virgo G274296: J-GEM optical/NIR follow-up observations
  
• 20719 GRB 170219A: POLAR Observation
  
• 20718 Swift Trigger 739517 is probably not a GRB
  
• 20717 LIGO/Virgo G274296: iPTF Optical Transient Candidates
  
• 20716 LIGO/Virgo G274296: Kanata 1.5m optical spectroscopy of MASTER optical transient
  
• 20715 LIGO/Virgo G274296: Global MASTER Net PSN and QSO detection
  
• 20714 LIGO/Virgo G274296: Asiago 1.82m Optical Observations
  
• 20713 LIGO/Virgo G274296: ATLAS confirmation of the bright MASTER transient and earlier explosion date
  
• 20712 LIGO/Virgo G274296: MASTER new bright possible SN detection and inspection dinamic
  
• 20711 LIGO/Virgo G274296: PSN MASTER OT J042250.16-820415.4 is before maximum
  
• 20710 GRB 170219A: CALET Gamma-Ray Burst Monitor detection
  
• 20709 LIGO/Virgo G274296: IceCube neutrino observations
  
• 20708 LIGO/Virgo G274296: PESSTO classification of 9 Pan-STARRS transients
  
• 20707 LIGO/Virgo G274296: Fermi-LAT search for a high-energy gamma-ray counterpart
  
• 20706 GRB 170219A: Fermi GBM observation
  
• 20705 LIGO/Virgo G274296: AstroSat CZTI upper limits
  
• 20704 LIGO/Virgo G274296 ANTARES search
  
• 20703 Konus-Wind observation of GRB 170219A (short/hard)
  
• 20702 IPN Triangulation of GRB 170219A (short/hard)
  
• 20701 LIGO/Virgo G274296: Optical Observation
  
• 20700 LIGO/Virgo G274296: CNEOST imaging coverage and an optical transient
  
• 20699 LIGO/Virgo G274296: Pan-STARRS imaging and discovery of 70 transients
  
• 20698 LIGO/Virgo G274296: SWASP optical imaging coverage
  
• 20697 LIGO/Virgo G274296: Global MASTER Net two OTs detection
  
• 20696 LIGO/Virgo G274296: Global MASTER Net SN bright detection during GW error box inspection
  
• 20695 LIGO/Virgo G274296: Observations of initial skymap by project Mini-GWAC of SVOM
  
• 20694 LIGO/Virgo G274296: INTEGRAL search for a prompt gamma-ray counterpart
  
• 20693 LIGO/Virgo G274296: REM optical/NIR observations
  
• 20692 LIGO/VIRGO G274296: Fermi GBM Observations
  
• 20691 GRB 170214A: Swift-XRT afterglow detection
  
• 20690 LIGO/VIRGO G274296: AGILE-GRID preliminary analysis
  
• 20689 LIGO/Virgo G274296: Identification of a GW Burst Candidate
  
• 20688 Trigger 738728: Swift triggered on noise near NGC 4096
  
• 20687 GRB 170214A: Mondy optical upper limit
  
• 20686 GRB 170214A: VLT/X-shooter spectroscopy and tentative redshift
  
• 20685 GRB170214A: RATIR Optical and NIR Afterglow Confirmation
  
• 20684 GRB 170214A: GROND detection in all bands
  
• 20683 GRB 170214A: NOT optical afterglow confirmation
  
• 20682 GRB 170214A: Swift/UVOT Upper Limits
  
• 20681 GRB170214A: RATIR Optical and NIR Observations
  
• 20680 GRB 170209A: GROND confirmation of MASTER afterglow
  
• 20679 GRB 170214A: Swift-XRT observations
  
• 20678 Konus-Wind observation of GRB 170214A
  
• 20677 GRB 170214A: Swift ToO observations
  
• 20676 GRB 170214A: Fermi-LAT detection
  
• 20675 GRB 170214A: Fermi GBM detection
  
• 20674 GRB 170208B: SMARTS optical/IR observations
  
• 20673 GRB 170208B: IRSF upper limits
  
• 20672 GRB 170208A: IRSF upper limits
  
• 20671 GRB 170208A: AstroSat CZTI detection
  
• 20670 GRB 170209A: AstroSat CZTI detection
  
• 20669 LIGO/Virgo G270580: DLT40 follow-up observation
  
• 20668 Konus-Wind observation of GRB 170210A
  
• 20667 GRB 170203A: 15 GHz upper limits from AMI
  
• 20666 GRB 170202A: 15 GHz upper limits from AMI
  
• 20665 GRB 170210A: POLAR observation
  
• 20664 GRB 170208C: POLAR Observation
  
• 20663 IBAS Trigger 7691 is not a GRB
  
• 20662 GRB 170209A: Swift-XRT observations
  
• 20661 IPN Triangulation of GRB 170210A
  
• 20660 GRB 170210A: Fermi GBM observation
  
• 20659 Konus-Wind observation of GRB 170209A
  
• 20658 GRB 170209A: Swift ToO observations
  
• 20657 GRB 170208B: Swift/UVOT Upper Limits
  
• 20656 IPN Triangulation of GRB 170209A
  
• 20655 GRB 170208B: RATIR Optical and NIR Observations
  
• 20654 GRB 170208B: Swift-BAT refined analysis
  
• 20653 GRB 170208A: Swift-BAT refined analysis
  
• 20652 GRB 170209A: Fermi GBM Detection
  
• 20651 Correction to GCN 20640: GRB 170208B: GROND observations
  
• 20650 Fermi Trigger 508295323: MASTER-OAFA possible OT detection
  
• 20649 GRB 170208A: Swift-XRT refined Analysis
  
• 20648 LIGO/Virgo G270580: AstroSat CZTI upper limits
  
• 20647 GRB 170208B WHT nIR candidate afterglow
  
• 20646 GRB 170208B: Fermi GBM Detection
  
• 20645 GRB 170207A: POLAR Observation
  
• 20644 GRB 170208A: Swift/UVOT Upper Limits
  
• 20643 Konus-Wind observation of GRB 170208B
  
• 20642 GRB 170207A: AstroSat CZTI detection
  
• 20641 Konus-Wind observation of GRB 170208A
  
• 20640 GRB 170208B: GROND observations
  
• 20639 GRB 170206C: POLAR Observation
  
• 20638 GRB 170208B: NOT upper limits
  
• 20637 GRB 170208B: Swift-XRT refined Analysis
  
• 20636 GRB 170208B: Etelman observatory optical observations
  
• 20635 GRB 170208B: Enhanced Swift-XRT position
  
• 20634 GRB 170208A: Enhanced Swift-XRT position
  
• 20633 GRB 170208A: Fermi GBM Detection
  
• 20632 GRB 170208B: Swift detection of a burst
  
• 20631 GRB 170208A: Swift detection of a burst
  
• 20630 GRB 170207A: Fermi GBM observation
  
• 20629 Konus-Wind observation of GRB 170207A
  
• 20627 LIGO/Virgo G270580: Gemini-South Spectroscopic Classification of Optical Transients
  
• 20628 IPN Triangulation of GRB 170207A (long/very bright)
  
• 20626 GRB 170206B: Swift/UVOT Upper Limits
  
• 20625 Konus-Wind observation of GRB 170206A
  
• 20624 GRB 170206A: POLAR observation
  
• 20623 IPN Triangulation of GRB 170206A (short/hard)
  
• 20622 GRB 170206B: Swift-BAT refined analysis
  
• 20621 LIGO/Virgo G270580: ANTARES upper limits
  
• 20620 GRB 170206B: Swift-XRT refined Analysis
  
• 20619 GRB 170206B: Enhanced Swift-XRT position
  
• 20618 GRB 170206B: Swift detection of a burst
  
• 20617 GRB 170206A: Fermi-LAT detection
  
• 20616 GRB 170206A: Fermi GBM observation
  
• 20615 GRB 170205A: Swift/UVOT Detection of a Fading Afterglow
  
• 20614 Konus-Wind observation of GRB 170205A
  
• 20613 GRB 170205A: Swift-BAT refined analysis
  
• 20612 GRB 170205A: NOT afterglow observations
  
• 20611 GRB 170205A: Swift-XRT refined Analysis
  
• 20610 GRB 170205A: Enhanced Swift-XRT position
  
• 20609 GRB 170205A: RATIR Optical and NIR Observations
  
• 20608 Fermi GBM trigger 508010837/170205755 is not a GRB
  
• 20607 Fermi GBM trigger 507959893/170205165 is not a GRB
  
• 20606 GRB 170202A: SMARTS optical/IR afterglow observations
  
• 20605 GRB 170205A: LCO FTN observations
  
• 20604 Konus-Wind observation of GRB 170202A
  
• 20603 GRB 170205A: Swift detection of a burst with an optical counterpart
  
• 20602 GRB 170202B POLAR Observation
  
• 20601 GRB 170202A: SQUEAN Observation (2nd night)
  
• 20600 GRB 170131A: POLAR Observation
  
• 20599 GRB 170202A: Zadko observatory - Gingin optical observations
  
• 20598 GRB 170202A: Etelman Observatory optical observations
  
• 20597 GRB 170203A: Swift-BAT refined analysis
  
• 20596 GRB 170202A: Swift-BAT refined analysis
  
• 20595 GRB 170202A: RATIR Optical and NIR Observations
  
• 20594 GRB 170202A: SQUEAN Observation
  
• 20593 GRB 170202A: LCO FTN observations
  
• 20592 GRB 170202A: Swift-XRT refined Analysis
  
• 20591 GRB 170202A: T100 observations
  
• 20590 GRB 170202A VLT/X-shooter redshift [minor correction]
  
• 20589 Mistake in submission; resubmitted as 20590
  
• 20588 GRB 170202A: Xinglong 2.16m photometry and spectroscopic redshift
  
• 20587 GRB 170202A: Swift/UVOT Detection
  
• 20586 GRB 170202A: Enhanced Swift-XRT position
  
• 20585 GRB 170202A: MITSuME Akeno Optical Observation
  
• 20584 GRB 170202A: Redshift from OSIRIS/GTC
  
• 20583 GRB 170203A: Swift detection of a burst
  
• 20582 GRB 170202A: NOT afterglow observations
  
• 20581 GRB 170202A: Kanata optical and infrared observations
  
• 20580 GRB 170202A: Zadko observatory - Gingin optical observations
  
• 20579 GRB 170202A: LCO Sutherland observations
  
• 20578 GRB 170202A: MASTGlobal ER-Net bright OT nonmonotonic light curve
  
• 20577 GRB 170202A: Mini-MegaTORTORA upper limits
  
• 20576 GRB 170202A : Xinglong TNT optical observation
  
• 20575 GRB 170202A: Swift detection of a burst with an optical afterglow
  
• 20574 GRB 170131A: Swift/UVOT Upper Limits
  
• 20573 GRB 170131A: Swift-XRT observations
  
• 20572 GRB 170131A: Fermi GBM observation
  
• 20571 GRB 170131A: Swift ToO observations
  
• 20570 GRB 170131A detected in Swift/BAT ground processing
  
• 20569 LIGO/Virgo G270580: Las Cumbres Observatory Follow-up Observations
  
• 20568 GRB 170130A: POLAR Observation
  
• 20567 Konus-Wind observation of GRB 170127C (short/hard GRB with extended emission)
  
• 20566 GRB 170127B: Swift-BAT refined analysis
  
• 20565 GRB 170127A: Swift-BAT refined analysis
  
• 20564 GRB 170127C: Swift-XRT observations
  
• 20563 GRB 170127C: POLAR Observation
  
• 20562 GRB 170127A: GROND Upper limits
  
• 20561 GRB 170127C: AstroSat CZTI detection
  
• 20560 GRB 170127B: Swift-XRT refined Analysis
  
• 20559 GRB 170124A: POLAR Observation
  
• 20558 GRB 170127A: Swift-XRT refined Analysis
  
• 20557 GRB 170126A, Swift-BAT refined analysis
  
• 20556 GRB 170124A: CALET Gamma-Ray Burst Monitor detection
  
• 20555 Swift Trigger 735413 is not an astrophysical event
  
• 20554 GRB 170127B: Swift/UVOT Upper Limits
  
• 20553 LIGO/Virgo G268556: FLOYDS Spectrum of iPTF17cf/PS17fr Favors an AGN Classification
  
• 20552 GRB 170127A: Swift/UVOT Upper Limits
  
• 20551 GRB 170127B: Fermi GBM observation
  
• 20550 GRB 170127B: Enhanced Swift-XRT position
  
• 20549 GRB 170127B: NOT r-band upper limits
  
• 20548 GRB 170127A: Enhanced Swift-XRT position
  
• 20547 Konus-Wind observation of GRB 170126A
  
• 20546 GRB 170127C: Tiled Swift observations
  
• 20545 GRB 170127C (Fermi/GBM trigger 507173752): AGILE analysis
  
• 20544 GRB 170127C: Fermi-LAT detection
  
• 20543 GRB 170127C: Fermi GBM detection
  
• 20542 LIGO/Virgo G270580: HAWC follow-up observations
  
• 20541 GRB 170127B: MASTER-Kislovodsk early optical observations
  
• 20540 GRB 170127B: Swift detection of a short burst
  
• 20539 GRB 170127A: Prompt enhanced Swift-XRT position
  
• 20538 GRB 170127A: Swift detection of a burst
  
• 20537 GRB 170126A: AstroSat CZTI detection
  
• 20536 LIGO/Virgo G270580: Swift/UVOT follow-up of PS17yt
  
• 20535 GRB 170126A: Swift-XRT refined Analysis
  
• 20534 GRB 170126A: Swift/UVOT Detection of a Fading Afterglow
  
• 20533 GRB 170126A: Fermi GBM observation
  
• 20532 LIGO/Virgo G270580: Fermi GBM Observations
  
• 20531 GRB 170126A: Enhanced Swift-XRT position
  
• 20530 GRB 170126A: Swift detection of a burst with an optical counterpart
  
• 20529 GRB 170115A: 15 GHz upper limits from AMI
  
• 20528 LIGO/Virgo G270580: MAXI/GSC observations
  
• 20527 LIGO/Virgo G270580: NOT observations of PS17yt
  
• 20526 LIGO/Virgo G270580: Liverpool Telescope classification of EM candidates
  
• 20525 GRB 170115B: AGILE/SuperAGILE localisation
  
• 20524 LIGO/Virgo G270580: Asiago 1.82m observations of PS17ua and PS17yt
  
• 20523 LIGO/Virgo G270580: Swift-XRT follow-up of PS17yt
  
• 20522 LIGO/Virgo G270580: GMG photometric follow-up of PS17yt
  
• 20521 LIGO/Virgo G270580: 10.4m GTC spectroscopic observations of PS17yt
  
• 20520 LIGO/Virgo G270580: No change to estimate of LIGO false alarm probability
  
• 20519 LIGO/Virgo G270580: Liverpool Telescope classification of EM candidates
  
• 20518 LIGO/Virgo G270580: Pan-STARRS coverage and 124 optical transients
  
• 20517 LIGO/Virgo G268556: ANTARES upper limits
  
• 20516 GRB 170121B: AbAO optical observations
  
• 20515 LIGO/Virgo G270580: UL50 observations
  
• 20514 GRB 170121B: MASTER early optical observations of the Swift possible XT
  
• 20513 LIGO/Virgo G270580: CALET Observations
  
• 20512 LIGO/Virgo G270580: Pan-STARRS coverage and bright, rising transient PS17yt
  
• 20511 GRB 170121B: AstroSat CZTI detection
  
• 20510 GRB 170121B: Swift-XRT and UVOT observations
  
• 20509 LIGO/Virgo G270580/GW170120 : Asiago observations
  
• 20508 GRB 170121B: LCO FTN observations
  
• 20507 LIGO/Virgo G268556/GW170104: MAXI/GSC observations
  
• 20506 LIGO/Virgo G270580: A third optical transient from CNEOST
  
• 20505 GRB 170121B: Fermi GBM detection
  
• 20504 GRB 170121B: Swift ToO observations
  
• 20503 LIGO/Virgo G270580: ATLAS coverage and 4 optical transients
  
• 20489 LIGO/Virgo G270580: AGILE MCAL and Super-AGILE Observations
  
• 20502 GRB 170121B/Fermi trigger 506702667 MASTER-Amur OT detection
  
• 20501 GRB 170121A: POLAR Observation
  
• 20500 GRB 170120A: POLAR Observation
  
• 20499 LIGO/Virgo G270580: Fermi-LAT search for a high-energy gamma-ray counterpart
  
• 20497 LIGO/Virgo G270580: Two optical counterpart candidates from CNEOST
  
• 20496 LIGO/Virgo G270580: INTEGRAL search of temporally coincident prompt hard X-ray
  
• 20495 LIGO/Virgo G270580: Swift-XRT sources
  
• 20494 LIGO/Virgo G270580: Swift/BAT data search
  
• 20493 LIGO/Virgo G268556: Global MASTER Net 21 OTs detection
  
• 20492 LIGO/Virgo G270580: Mini-MegaTORTORA follow-up observations
  
• 20491 LIGO/Virgo G270580: Pan-STARRS and ATLAS observations of the skymap
  
• 20490 LIGO/Virgo G270580: Observations of initial skymap by Project Mini-GWAC of SVOM
  
• 20487 LIGO/Virgo G270580 ANTARES search
  
• 20486 LIGO/Virgo G270580: Identification of a GW Burst Candidate
  
• 20485 LIGO/Virgo G268556: RATIR Observation of iPTF Candidates
  
• 20484 GRB 170117A: Swift/UVOT Upper Limits
  
• 20483 GRB 170115B: CALET Gamma-Ray Burst Monitor detection
  
• 20482 GRB 170117A: Swift-XRT observations
  
• 20481 GRB 170117A: Swift ToO observations
  
• 20480 Swift Trigger #733426: possible detection of a burst or transient
  
• 20479 GRB 170115A : AbAO optical upper limit
  
• 20478 GRB 170115A: Swift/UVOT Upper Limits
  
• 20477 GRB 170115B: Swift-XRT observations
  
• 20476 Konus-Wind observation of GRB 170115B
  
• 20475 IPN Triangulation of GRB 170115B
  
• 20474 GRB 170115B: AGILE detection
  
• 20473 LIGO/Virgo G268556: Swift-XRT observations of iPTF17cw
  
• 20472 GRB 170112A : AbAO optical observations
  
• 20471 GRB 170115A: Swift-BAT refined analysis
  
• 20470 GRB 170115A: Swift-XRT refined Analysis
  
• 20469 GRB 170114B: POLAR Observation
  
• 20468 GRB 170114A: POLAR Observation
  
• 20467 GRB 170115B: Tiled Swift observations
  
• 20466 GRB 170115B: AstroSat CZTI (Veto) detection
  
• 20465 GRB 170115A: Enhanced Swift-XRT position
  
• 20464 GRB 170115B: Fermi-LAT detection
  
• 20463 GRB 170115B: Fermi GBM detection
  
• 20462 GRB 170115A: Swift detection of a burst
  
• 20461 GRB 170114A: Fermi GBM detection
  
• 20460 GRB 170112B: POLAR observation
  
• 20459 LIGO/Virgo G268556: spectra of two nuclear transients PS17fr and PS17er
  
• 20458 GRB 170113A: VLT/X-shooter redshift
  
• 20457 GRB 170113A: GROND afterglow observations
  
• 20456 GRB 170113A: Swift-BAT refined analysis
  
• 20455 GRB 170113A: Swift/UVOT Observations
  
• 20454 GRB 170113A: Swift-XRT refined Analysis
  
• 20453 GRB 161214B: 15 GHz upper limits from AMI
  
• 20452 GRB 170113A: Fermi GBM observations
  
• 20451 GRB 170112A: Swift/UVOT Upper Limits
  
• 20450 GRB 170113A: Enhanced Swift-XRT position
  
• 20449 GRB 170101A: 15 GHz upper limits from AMI
  
• 20448 GRB 170113A: LCO Sutherland observations
  
• 20447 GRB 161217A: 15 GHz upper limits from AMI
  
• 20446 GRB 170113A: Swift detection of a burst with an optical counterpart
  
• 20445 LIGO/Virgo G268556: TZAC TAROT network observations with TRE/TCA/TCH
  
• 20444 GRB 170112A: RATIR Optical and NIR Observations
  
• 20443 GRB 170112A: Swift-BAT refined analysis
  
• 20442 GRB 161219B: afterglow and SN2016jca optical observations
  
• 20441 GRB 170111A: Swift/UVOT Upper Limits
  
• 20440 GRB 170112A: Swift-XRT observations
  
• 20439 GRB 170112A: MASTER-OAFA (Argentina) early optical observations
  
• 20438 GRB 170112A: REM optical/NIR observations
  
• 20437 LIGO/Virgo G268556: Gemini spectra of Pan-STARRS1 transients
  
• 20434 LIGO/Virgo G268556: Early SWASP limits of ATLAS17aeu
  
• 20436 GRB 170112A: Swift detection of a short burst
  
• 20435 GRB170111A: REM optical/NIR observations
  
• 20433 GRB 170111A: Swift-BAT refined analysis
  
• 20432 GRB 170111A: SMARTS optical/IR observations
  
• 20431 GRB 170111A: Swift-XRT refined Analysis
  
• 20430 LIGO/Virgo G268556: Additional GROWTH follow up observation of iPTF Optical Transient Candidates
  
• 20429 GRB 161230A: POLAR Observation
  
• 20428 LIGO/Virgo G268556: VLA follow-up of iPTF17cw
  
• 20427 GRB 170111A: MASTER-OAFA (Argentina) prompt OT observations
  
• 20426 LIGO/Virgo G268556/GW170104: Campo Imperatore Observatory observations
  
• 20425 LIGO/Virgo G268556: AMI 15 GHz detection of ATLAS17aeu
  
• 20424 GRB 170111A: Enhanced Swift-XRT position
  
• 20423 GRB 170111A: Swift detection of a burst
  
• 20422 LIGO/Virgo G268556: Swift/BAT data search
  
• 20421 LIGO/Virgo G268556: Lijiang Observatory GMG Telescope Upper Limit on ATLAS17aeu
  
• 20420 LIGO/Virgo G268556: Liverpool Telescope Spectroscopy of iPTF17bv and iPTF17ck
  
• 20419 LIGO/Virgo G268556: Spectroscopic observations of ATLAS17aeu and iPTF17cw
  
• 20418 GRB 170109A: POLAR Observation
  
• 20417 LIGO/Virgo G268556: NOWT of EWE, Xinglong 0.6/0.9m, Xuyi 1m optical upper limits of ATLAS17aeu and a reminder of GCN 20394
  
• 20416 LIGO/Virgo G268556/GW170104: TNG observations of ATLAS17aeu
  
• 20415 LIGO/Virgo G268556: Swift-XRT confirms that ATLAS17aeu is fading in X-rays
  
• 20414 Trigger 731535: Swift detection of GRS 1716-249/GRO J1719-24/V2293 Oph
  
• 20413 LIGO/Virgo G268556: ATLAS17aeu position is consistent with GRB170105A
  
• 20412 GRB170105A: AstroSat CZTI localisation
  
• 20411 LIGO/Virgo G268556: Liverpool Telescope Spectroscopy of iPTF candidates
  
• 20410 LIGO/Virgo G268556: Pan-STARRS1 observations and summary of transient sources
  
• 20409 LIGO/Virgo G268556/GW170104: 10.4m GTC spectroscopic observations of iPTF17fs
  
• 20408 LIGO/Virgo G268556/GW170104: TNG spectroscopic observations of iPTF16ck and iPTF16dz
  
• 20407 LIGO/Virgo G268556: Gemini spectrum and Pan-STARRS observations of ATLAS17aeu
  
• 20406 LIGO/Virgo G268556: IPN Triangulation of GRB 170105A (association with ATLAS17aeu)
  
• 20405 Trigger 731257: Another Swift-BAT detection of GRS 1716-249/GRO J1719-24/V2293 Oph
  
• 20404 LIGO/Virgo G268556: GWAC_F60B (60cm) follow-up two events of EWE001 and EWE002
  
• 20403 Trigger 731183: Swift detection of GRS 1716-249/GRO J1719-24/V2293 Oph
  
• 20402 LIGO/Virgo G268556/GW170104: Lomonosov BDRG observations
  
• 20401 LIGO/Virgo G268556: Continued iPTF Observations and Additional Optical Transient Candidates
  
• 20400 LIGO/Virgo G268556: Swift/UVOT observations of ATLAS17aeu
  
• 20399 LIGO/Virgo G268556: CALET Observations
  
• 20398 LIGO/Virgo G268556: iPTF Optical Transient Candidates
  
• 20397 Discovery Channel Telescope Imaging of ATLAS17aeu (LVCG268556)
  
• 20396 LIGO/Virgo G268556: VLA follow-up of ATLAS17aeu
  
• 20395 LIGO/Virgo G268556: AGILE-GRID preliminary analysis
  
• 20394 LIGO/Virgo G268556: EWE001 and EWE002- two events close to GCN 20382 with the skymap
  
• 20393 LIGO/Virgo G268556: Palomar 200-inch detects ATLAS17aeu, possible afterglow of GRB070105A?
  
• 20392 LIGO/Virgo G268556/GW170104: Global MASTER Net second OT detection
  
• 20391 Swift Trigger 730874 is not astrophysical
  
• 20390 LIGO/Virgo G268556: Swift-XRT detection of ATLAS17aeu
  
• 20389 GRB 170105A: AstroSat CZTI detection
  
• 20388 LIGO/Virgo G268556: SWASP optical imaging
  
• 20387 GRB 170105A: POLAR Observation
  
• 20386 LIGO/Virgo G268556/GW170104: Asiago Observations
  
• 20385 LIGO/Virgo G268556: Updated sky map from gravitational-wave data
  
• 20384 LIGO/Virgo G268556: HAWC follow-up of northern sky
  
• 20383 LIGO/Virgo G268556: Pan-STARRS1 observations of the skymap
  
• 20382 SUBJECT: LIGO/Virgo G268556: ATLAS17aeu - an unusual transient within the skymap
  
• 20381 LIGO/Virgo G268556/GW170104: Global MASTER Net observations and first OT detection
  
• 20380 PESSTO follow-up of GRB 161219B/SN2016jca
  
• 20379 Transient in GCN 20367 is a mistaken submission
  
• 20378 Swift Trigger 730513 is not an astrophysical event
  
• 20377 LIGO/Virgo G268556: ATLAS imaging of the skymap
  
• 20376 LIGO/Virgo G268556: DESGW/DECam observations
  
• 20375 LIGO/Virgo G268556: AGILE MCAL and Super-AGILE Observations
  
• 20374 LIGO/Virgo G268556: Fermi-LAT search for high-energy gamma-ray counterpart
  
• 20373 LIGO/Virgo G268556: Mini-MegaTORTORA follow-up observations
  
• 20372 LIGO/Virgo G211117 / GW151226: LOFAR follow-up
  
• 20371 LIGO/Virgo G268556: Swift-XRT sources
  
• 20370 LIGO/Virgo G268556: ANTARES search
  
• 20369 LIGO/Virgo G268556: observation regions by Project Mini-GWAC of SVOM
  
• 20368 GRB 170102A: Astrosat CZTI detection
  
• 20367 GRB170104.78 MASTER-Net OT detection
  
• 20366 LIGO/Virgo G268556: INTEGRAL search of temporally coincident prompt hard X-ray emission
  
• 20365 LIGO/Virgo G268556: Fermi GBM Observations
  
• 20364 LIGO/Virgo G268556: Identification of a GW CBC Candidate
  
• 20363 GRB 170102A: POLAR observation
  
• 20362 Konus-Wind observation of GRB 170101A
  
• 20361 GRB 170101B: POLAR observation
  
• 20360 GRB 170101B: Lomonosov BDRG gamma ray discovery
  
• 20359 GRB 170101A: Lomonosov BDRG gamma ray discovery
  
• 20358 Swift trigger 729600 is not an astrophysical event
  
• 20357 GRB 161228C: POLAR observation
  
• 20356 GRS 1716-249/GRO J1719-24/V2293 Oph, Swift-BAT refined analysis
  
• 20355 GRB 170101A: POLAR observation
  
• 20354 GRB 161229A: POLAR observation
  
• 20353 GRB 170101A: Swift-BAT refined analysis
  
• 20352 Trigger 729410: Swift detection of V2293 Oph
  
• 20351 GRB 170101B: Astrosat CZTI detection
  
• 20350 GRB 170101B: Fermi GBM detection
  
• 20349 GRB 170101A: Swift detection of a burst
  
• 20348 GRB 161228B: POLAR Observation
  
• 20347 GRB 161228A: POLAR Observation
  
• 20346 GRB161219 - Anticipated hyperluminal evidence
  
• 20345 GRB 161214B: MASTER-Kislovodsk early optical observations
  
• 20344 GMRT radio detection of GRB 161219B
  
• 20343 GRB 161214A: MASTER-IAC early optical observations
  
• 20342 GRB 161219B: Spectroscopic detection of the associated SN with OSIRIS/GTC
  
• 20341 Fermi GBM trigger 504490076/161227005 is not a GRB
  
• 20340 GRB 161224A: TSHAO optical observations
  
• 20339 GRB 161224A: Swift/UVOT Upper limits
  
• 20338 GRB 161224A: Swift-XRT refined Analysis
  
• 20337 GRB 161224A: Swift-BAT refined analysis
  
• 20336 Trigger 728094, Swift-BAT refined analysis
  
• 20335 Swift Trigger 728268: a possible GRB
  
• 20334 Fermi GBM trigger 504233075/161224301 is not a GRB
  
• 20333 Swift Trigger 728094: a possible GRB
  
• 20332 GRB 161219B: UKIRT near-IR afterglow detection
  
• 20331 GRB 161219B: POLAR Observation
  
• 20330 GRB161219.78 MASTER-Net OT detection
  
• 20329 Fermi GBM trigger 504061556/161222046 is not a GRB
  
• 20328 GRB 161219B: Rapid ALMA Observations & Detection
  
• 20327 Correction to GCN 20323 "Konus-Wind observation of GRB 161219B"
  
• 20326 Fermi GBM trigger 504043585/161221838 is not a GRB
  
• 20325 GRB 161220A: Swift-BAT refined analysis
  
• 20324 GRB 161218B: Astrosat CZTI detection
  
• 20323 Konus-Wind observation of GRB 161219B
  
• 20322 GRB 161219B: SALT observations
  
• 20321 GRB 161219B: VLT/X-shooter redshift
  
• 20320 Fermi GBM trigger 503982114/161221126 is not a GRB
  
• 20319 GRB 161214B: optical spectroscopy of the foreground SDSS object
  
• 20318 GRB 161202A: 15 GHz upper limits from AMI
  
• 20317 GRB 161129A: 15 GHz upper limits from AMI
  
• 20316 GRB 161220A: Swift-XRT refined Analysis
  
• 20315 GRB 161220A: LCO-FTS observations
  
• 20314 GRB 161219B: MITSuME Akeno Optical Observation
  
• 20313 GRB 161219B: VLA Detection
  
• 20312 GRB 161220A: GROND Upper Limits
  
• 20311 GRB 161217C: POLAR observation
  
• 20310 GRB 161217B: POLAR Observation
  
• 20309 GRB 161219B: ISON/Terskol optical observations
  
• 20308 GRB 161219B: Swift-BAT refined analysis
  
• 20307 GRB 161220A: Swift/UVOT Upper Limits
  
• 20306 GRB 161219B: Swift/UVOT Detection
  
• 20305 GRB 161219B: Watcher optical observations
  
• 20304 Konus-Wind observation of GRB 161218B
  
• 20303 IPN Triangulation of GRB 161218B (long/very bright)
  
• 20302 GRB 161220A: Swift detection of a burst
  
• 20301 GRB 161212A: POLAR Detection
  
• 20300 GRB 161219B: LCO Sutherland observations
  
• 20299 GRB 161219B: GROND afterglow observations
  
• 20298 GRB 161219B: Swift-XRT refined Analysis
  
• 20297 GRB 161219B: Enhanced Swift-XRT position
  
• 20296 GRB 161219B: Swift detection of a burst with an optical afterglow
  
• 20295 GRB 161219A: a long GRB detected by INTEGRAL
  
• 20294 GRB 161218A: CALET Gamma-Ray Burst Monitor detection
  
• 20293 GRB 161218A: Swift-BAT refined analysis
  
• 20292 Konus-Wind observation of GRB 161218A
  
• 20291 Swift Trigger 727422 is not an astrophysical event.
  
• 20290 GRB 161218A: TAROT Calern observatory optical observations
  
• 20289 GRB 161217A: TAROT Calern observatory optical observations
  
• 20288 GRB 161218B: POLAR observation
  
• 20287 GRB 161218A: POLAR observation
  
• 20286 GRB 161218B: Fermi GBM detection
  
• 20285 GRB 161217A: MITSuME Okayama upper limits
  
• 20284 GRB 161217A: Swift-BAT refined analysis
  
• 20283 GRB 161218A: Swift detection of a burst
  
• 20282 GRB 161217A: Swift/UVOT Upper Limits
  
• 20280 GRB 161217A: Swift-XRT refined Analysis
  
• 20279 GRB 161214B: AbAO and ISON/Terskol optical observations
  
• 20278 GRB 161217A: Enhanced Swift-XRT position
  
• 20277 GRB 161207A: POLAR observation
  
• 20276 GRB 161217A: Swift detection of a burst
  
• 20275 GRB 161214B: Mondy optical observations
  
• 20274 GRB 161213A: POLAR Observation
  
• 20273 GRB 161207B: POLAR observation
  
• 20272 GRB 161205A: POLAR observation
  
• 20271 GRB 161210A: POLAR observation
  
• 20270 GRB 161214B: Swift-BAT refined analysis
  
• 20269 Fermi-LAT Gamma-ray Observations of IceCube-161210
  
• 20268 GRB 161214B: Swift/UVOT Afterglow Confirmation
  
• 20267 IceCube-161210: Kanata/HONIR near-infrared follow-up observation
  
• 20266 GRB 161214B: RATIR Optical and Near-Infrared Observations
  
• 20265 GRB 161214B: Swift-XRT refined Analysis
  
• 20264 GRB 161214B: Enhanced Swift-XRT position
  
• 20263 GRB 161214B: TAROT Calern observatory optical observations
  
• 20262 GRB 161214B: Chante-perdrix observatory optical observations
  
• 20261 GRB 161214B: Swift/UVOT Observations
  
• 20260 GRB 161214B: NOT optical observations, possible counterpart
  
• 20259 GRB 161214B: Prompt enhanced Swift-XRT position
  
• 20258 GRB 161214A: NOT observations of the afterglow
  
• 20257 GRB 161214B: Swift detection of a burst
  
• 20256 IceCube-161210: Konus-Wind upper limits
  
• 20255 GRB 161214A: GROND afterglow observations
  
• 20254 GRB 161214A: TAROT Calern observatory optical observations
  
• 20253 IceCube-161210: CALET Gamma-Ray Burst Monitor upper limits
  
• 20252 GRB 161214A: fading optical afterglow candidate with the LT
  
• 20251 GRB 161214A: A long GRB detected by INTEGRAL
  
• 20250 HAWC follow-up on IceCube-161210
  
• 20249 INTEGRAL SPI-ACS and IBIS/Veto observation of IceCube-161210
  
• 20248 IceCube-161210: MAXI/GSC non-detection
  
• 20247 IceCube-161210: IceCube observation of a high-energy neutrino candidate event
  
• 20246 GRB 161207A: CALET Gamma-Ray Burst Monitor detection
  
• 20245 GRB 161129A: GTC redshift of the likely host galaxy
  
• 20244 GRB 161129A: NOT optical observations and candidate host galaxy
  
• 20243 GRB 161203A: POLAR Detection
  
• 20242 GRB 161129A: KWFC z-band photometry
  
• 20241 GRB 161203A: Astrosat CZTI (Veto) detection
  
• 20240 GRB 161203A: CALET Gamma-Ray Burst Monitor detection
  
• 20239 GRB 161206A: Fermi GBM detection
  
• 20238 Konus-Wind observation of GRB 161202A
  
• 20237 MASTER: Optical Blazar Flare Detection during Fermi trigger 502272781 inspection
  
• 20236 GRB 161129A: POLAR Detection
  
• 20235 GRB 161202A: Astrosat CZTI detection
  
• 20234 GRB 161202A: RATIR Optical and NIR Observations
  
• 20233 GRB 161202A: Swift-BAT refined analysis
  
• 20232 GRB 161202A: Swift/UVOT Upper Limits
  
• 20231 GRB 161202A: Swift-XRT refined Analysis
  
• 20230 GRB 161202A: MITSuME Okayama upper limits
  
• 20229 GRB 161202A: Fermi-LAT detection
  
• 20228 GRB 161202A: Enhanced Swift-XRT position
  
• 20227 GRB 161202A: Swift detection of a burst
  
• 20226 GRB 161129A: Mondy optical observations
  
• 20225 Fermi GBM trigger 502258294/161201175 is not a GRB
  
• 20224 GRB 161129A: ISON/UAFO optical observations
  
• 20223 GRB 161129A: MITSuME Okayama Ks-band Observation
  
• 20222 GRB 160821B: HST detection of the optical and IR counterpart
  
• 20221 Fermi Gamma-ray Burst Monitor trigger 161130183 is not a GRB
  
• 20220 GRB 161129A: Swift-BAT refined analysis
  
• 20219 GRB 161129A: Fermi GBM Detection
  
• 20218 GRB 161129A: MITSuME Okayama Optical Observation
  
• 20217 GRB 161129A: Swift/UVOT Detection
  
• 20216 GRB 161129A: Tautenburg Ic-band observations
  
• 20215 GRB 161129A: TSHAO optical observations / possible afterglow+host galaxy
  
• 20214 GRB161129A : Astrosat CZTI detection
  
• 20213 Mistaken submission
  
• 20212 GRB 161129A: Swift-XRT refined Analysis
  
• 20211 GRB 161129A: Enhanced Swift-XRT position
  
• 20210 GRB 161129A: Swift detection of a burst
  
• 20209 Fermi GBM trigger 501785179/161125699 is not a GRB
  
• 20208 Fermi GBM trigger 501779084/161125628 is not a GRB
  
• 20206 GRB 161123A: Swift-XRT observations
  
• 20205 Swift Trigger 723539 is not an astrophysical event
  
• 20204 GRB 161123A: Tiled Swift observations
  
• 20203 GRB 161123A: MAXI/GSC detection
  
• 20202 GRB 161117A: SMARTS optical/IR afterglow observations
  
• 20201 GRB 161119A: MASTER-SAAO possible OT detection during Fermi Alert
  
• 20200 GRB 161108A: 15 GHz upper limits from AMI
  
• 20199 Swift Trigger 723124 is probably not a GRB
  
• 20198 GRB 161117B: Swift-XRT refined Analysis
  
• 20197 Konus-Wind observation of GRB 161117A
  
• 20196 GRB 161117A iTelescope observation
  
• 20195 GRB 161117A: MASTER-OAFA (Argentina) prompt OT observations
  
• 20194 GRB 161117A: TAROT La Silla observatory optical observations
  
• 20193 GRB 161117A: GMG observation limit
  
• 20192 GRB 161117A: Fermi GBM detection/observation
  
• 20191 GRB 161117B: Swift/UVOT Upper Limits
  
• 20190 GRB 161117A: Swift/UVOT Detection
  
• 20189 GRB 161117B: Swift-BAT refined analysis
  
• 20188 GRB 161117A: Swift-BAT refined analysis
  
• 20187 Swift Trigger 722681 is probably not a GRB
  
• 20186 GRB 161117B: Enhanced Swift-XRT position
  
• 20185 GRB 161117A: Swift-XRT refined Analysis
  
• 20184 GRB 161117A: Enhanced Swift-XRT position
  
• 20183 GRB 161117B: LCO optical observations
  
• 20182 GRB 161117B: Swift detection of a burst
  
• 20181 GRB 161117A: REM optical and NIR afterglow detection
  
• 20180 GRB 161117A: VLT/X-shooter spectroscopy and redshift
  
• 20179 GRB 161117A: Swift detection of a burst with an optical counterpart
  
• 20178 GRB 161113A: Swift-BAT refined analysis
  
• 20177 GRB 161113A: Swift/UVOT Upper Limits
  
• 20176 GRB 161113A: Swift-XRT refined Analysis
  
• 20175 GRB 161113A: Kuban State University optical upper limit
  
• 20174 GRB 161113A: Enhanced Swift-XRT position
  
• 20173 GRB 161113A: RATIR Optical and NIR Observations
  
• 20172 GRB 161113A: Swift detection of a burst
  
• 20171 GRB 161109A: CALET Gamma-Ray Burst Monitor detection
  
• 20169 GRB 161109A: Swift/UVOT Upper Limits
  
• 20168 GRB 161104A: Magellan imaging and spectroscopy
  
• 20167 GRB 161108A: continued TSHAO optical observations
  
• 20166 GRB 161104A: Chandra X-ray observations
  
• 20165 GRB 161109A: Lomonosov BDRG gamma ray discovery
  
• 20164 GRB 161109A: Swift-XRT observations
  
• 20163 GRB 161108A: MITSuME Okayama upper limits
  
• 20162 IceCube-161103: CALET Gamma-Ray Burst Monitor upper limits
  
• 20161 GRB 161106A: CALET Gamma-Ray Burst Monitor detection
  
• 20160 GRB 161108A: TSHAO optical observations
  
• 20159 GRB 161108A: Swift/UVOT Upper Limits
  
• 20158 GRB 161109A: Tiled Swift observations
  
• 20157 GRB 161105A: Swift/UVOT Upper Limits
  
• 20156 GRB 161109A: Fermi GBM observation
  
• 20155 GRB 161109A: Fermi-LAT detection
  
• 20154 GRB 161106A: Lomonosov BDRG gamma ray discovery
  
• 20153 GRB 161108A: TAROT Calern observatory optical observations
  
• 20152 GRB 161105A: TAROT La Silla observatory optical observations
  
• 20151 GRB 161108A, Swift-BAT refined analysis
  
• 20150 GRB 161108A: NOT redshift
  
• 20149 GRB 161108A: RATIR Afterglow Confirmation
  
• 20148 GRB 161108A: Swift-XRT refined Analysis
  
• 20147 GRB 161108A: Enhanced Swift-XRT position
  
• 20146 GRB 161108A: NOT candidate afterglow
  
• 20145 GRB 161108A: Swift detection of a burst
  
• 20144 Fermi LAT Gamma-ray Observations of IceCube-161103
  
• 20143 GRB 161022A: 15 GHz upper limits from AMI
  
• 20142 GRB 161017A: 15 GHz upper limits from AMI
  
• 20141 GRB 161103A: an ultra-long GRB detected by Konus-Wind
  
• 20140 GRB 161106A: Fermi GBM detection
  
• 20139 IceCube-161103: Konus-Wind upper limits
  
• 20138 GRB 161105A: Swift-XRT refined Analysis
  
• 20137 GRB 161104A: Gemini South optical observations
  
• 20136 GRB 161105A: Swift-BAT refined analysis
  
• 20135 GRB 161105A: Enhanced Swift-XRT position
  
• 20134 Search for counterpart to IceCube-161103A with ANTARES
  
• 20133 GRB 161105A: MASTER-IAC early optical observations
  
• 20132 GRB 161104A: GROND observations
  
• 20131 GRB 161105A: Swift detection of a burst
  
• 20130 GRB 161104A: Swift/UVOT Upper Limits
  
• 20129 GRB 161104A, Swift-BAT refined analysis
  
• 20128 GRB 161104A: Swift-XRT refined Analysis
  
• 20127 Fermi GBM Observations of IceCube-161103
  
• 20126 GRB 160928A: The first GRB detected by POLAR
  
• 20125 IceCube-161103: Swift-XRT observations
  
• 20124 GRB 161104A: Enhanced Swift-XRT position
  
• 20123 GRB 161104A: Swift detection of a short burst
  
• 20122 INTEGRAL SPI-ACS and IBIS/Veto observation of IceCube-161103
  
• 20121 IceCube-161103: MASTER follow-up observations
  
• 20120 HAWC follow up of IceCube-161103
  
• 20119 IceCube-161103: IceCube observation of a very-high-energy neutrino
  
• 20118 GRB 161020A: Fermi GBM observation
  
• 20117 Fermi GBM trigger 499467682/161029876 is not a GRB
  
• 20116 GRB 161015A: 15 GHz upper limits from AMI
  
• 20115 GRB 161014A: 15 GHz upper limits from AMI
  
• 20114 GRB161023A: AstroSat CZTI detection
  
• 20113 GRB 161023A: GROND Observations
  
• 20112 GRB 161023A: Swift-XRT afterglow detection
  
• 20111 Konus-Wind observation of GRB 161023A
  
• 20110 GRB 161023A: TAROT La Silla observatory optical observations
  
• 20109 GRB 161023A: Zadko observatory - Gingin optical observations
  
• 20108 GRB 161023A: Watcher optical observations
  
• 20107 GRB 161023A: LCOGT-FTS optical observations
  
• 20106 GRB 161023A: Swift ToO observations
  
• 20105 Radio upper limit on the GRB 161011A with the GMRT
  
• 20104 GRB 161023A VLT/X-shooter redshift
  
• 20103 GRB 161023A: A long GRB detected by INTEGRAL
  
• 20102 GRB 161023A (Integral trigger 7613) MASTER-Net bright OT detection
  
• 20101 Swift Trigger 718919 is not an astrophysical event.
  
• 20100 GRB 161022A: Swift-BAT refined analysis
  
• 20099 Swift Trigger 718766 is not an astrophysical event.
  
• 20098 GRB 161022A: RATIR Optical and NIR Observations
  
• 20097 GRB 161022A: Swift/UVOT Upper Limits
  
• 20096 GRB 161022A: Fermi GBM observation
  
• 20095 GRB 161022A: NOT optical observations
  
• 20094 GRB 161022A: Enhanced Swift-XRT position
  
• 20093 Konus-Wind observation of GRB 161020B
  
• 20092 GRB 161022A: Swift-XRT refined Analysis
  
• 20091 IPN Triangulation of GRB 161020B
  
• 20090 GRB 161022A: LT observations
  
• 20089 GRB 161022A: TAROT Calern observatory optical observations
  
• 20088 GRB 161022A: Prompt enhanced Swift-XRT position
  
• 20087 GRB 161022A: Swift detection of a burst
  
• 20086 GRB 161020A: A long GRB detected by INTEGRAL
  
• 20085 GRB 161015A: further Swift-XRT follow-up observations
  
• 20084 GRB 161011A: 15 GHz upper limits from AMI
  
• 20083 GRB 161007A: 15 GHz upper limits from AMI
  
• 20082 Konus-Wind observation of GRB 161017A
  
• 20081 GRB 161017A: NOEMA detection of the millimetre afterglow
  
• 20080 GRB 161017A: LT optical observations
  
• 20079 GRB 161017A optical R band observations with SARA-RM
  
• 20078 GRB 161017A: TNG spectroscopy and redshift confirmation
  
• 20077 GRB 161017A: GTC additional spectroscopy and refined redshift
  
• 20076 GRB 161017A: Swift-BAT refined analysis
  
• 20075 GRB 161017A: Lomonosov Gamma Ray and MASTER Optical prompt observations
  
• 20074 GRB 161017A: Swift/UVOT Detection
  
• 20073 GRB 161017A: Swift-XRT refined Analysis
  
• 20072 GRB161017A: optical observations with 1-m LCOGT McDonald
  
• 20071 GRB 161017A: TNG optical observations
  
• 20070 GRB 161017A: MITSuME Akeno Optical Observation
  
• 20069 GRB 161017A: Redshift from GTC
  
• 20068 GRB 161017A: Fermi GBM observation
  
• 20067 GRB 161017A: Enhanced Swift-XRT position
  
• 20066 GRB 161014A: Continued RATIR Optical and NIR Observations
  
• 20065 GRB 161015A: Swift/UVOT observations
  
• 20064 GRB 161017A: Swift detection of a burst with a bright optical afterglow
  
• 20063 GRB 161017.74 MASTER-Net OT detection
  
• 20062 Konus-Wind observation of GRB 161015A
  
• 20061 GRB 161014A: VLT/X-shooter redshift confirmation
  
• 20060 GRB 161015A: AstroSat CZTI detection
  
• 20059 Konus-Wind observation of GRB 161014A
  
• 20058 GRB 161014A: refined analysis of TSHAO optical observations
  
• 20057 GRB 161015A: Swift-XRT observations
  
• 20056 GRB 161015A: Fermi GBM detection
  
• 20055 GRB 161015A: Tiled Swift observations
  
• 20054 GRB 161015A: Fermi-LAT detection
  
• 20053 GRB 161004A: Further analysis of the burst nature
  
• 20052 GRB 161014A: RATIR Optical and NIR Observations
  
• 20051 GRB 161014A: Fermi GBM observation
  
• 20050 GRB 161014A: Swift-XRT refined Analysis
  
• 20049 GRB 161014A: Swift-BAT refined analysis
  
• 20048 GRB 161014A: TNG optical observations
  
• 20047 GRB 161014A: AROMA-N Optical Observation
  
• 20046 GRB 161014A: Continued MITSuME Akeno Optical Observation
  
• 20045 GRB 161014A: Swift/UVOT Detection
  
• 20044 GRB 161014A: NOT optical observations
  
• 20043 GRB 161014A: GTC spectroscopy
  
• 20042 GRB 161014A: TSHAO optical observations
  
• 20041 GRB 161011A: RATIR Optical and NIR Observations
  
• 20040 GRB 161014A: Swift-XRT and UVOT afterglow detection
  
• 20039 GRB 161014A: Kanata optical observation
  
• 20038 GRB 161014A : Xinglong TNT optical observation
  
• 20037 GRB 161014A: optical afterglow candidate with the LCOGT-FTS
  
• 20036 GRB 161014A: MITSuME-Akeno optical observation
  
• 20035 GRB 161014A: Swift detection of a burst
  
• 20034 GRB 161010A: Swift/UVOT Possible Detection
  
• 20033 GRB 161010A: CALET Gamma-Ray Burst Monitor detection
  
• 20032 GRB 161011A, Swift-BAT refined analysis
  
• 20031 GRB 161011A: Swift burst of interest
  
• 20030 GRB 161011A: TSHAO afterglow candidate
  
• 20029 GRB 161011A: Swift/UVOT Upper Limits
  
• 20028 GRB 161011A: Swift-XRT refined Analysis
  
• 20027 Konus-Wind observation of GRB 161010A
  
• 20026 GRB 161011A: Enhanced Swift-XRT position
  
• 20025 GRB 161010A: Swift-XRT afterglow detection
  
• 20024 GRB 161011A: Prompt enhanced Swift-XRT position
  
• 20023 GRB 161011A: Swift detection of a burst
  
• 20022 GRB 161010A: Swift ToO observations
  
• 20021 GRB 161010A: a long GRB detected by INTEGRAL
  
• 20020 GRB 161007A: NOT optical observations
  
• 20019 GRB 161007A: AbAO optical observations
  
• 20018 GRB 161007A: Mondy optical observations
  
• 20017 GRB 161007A: Swift-BAT refined analysis
  
• 20016 GRB 161007A: Swift/UVOT Upper Limits
  
• 20015 GRB 161007A: Swift-XRT refined Analysis
  
• 20014 GRB 161007A: GTC observations
  
• 20013 GRB 161007A: Enhanced Swift-XRT position
  
• 20012 GRB 161004A: Maidanak optical observations
  
• 20011 GRB 161004A: refined analysis of TSHAO optical observations
  
• 20010 GRB 161007A: Prompt enhanced Swift-XRT position
  
• 20009 GRB 161007A: MASTER-net early optical observations
  
• 20008 GRB 161007A: Swift detection of a burst
  
• 20007 GRB 160821A: Maisoncelles observatory optical observations
  
• 20006 GRB 160925A: Kottamia R-band observation
  
• 20005 Konus-Wind observation of GRB 161004B
  
• 20004 GRB 160927A: GTC observations
  
• 20003 GRB 161004B: CALET Gamma-Ray Burst Monitor detection
  
• 20002 GRB 160927A: CALET Gamma-Ray Burst Monitor ground detection
  
• 20001 GRB 161004A: Swift-BAT refined analysis
  
• 20000 GRB 150302A: late-time imaging and optical afterglow confirmation
  

After a while the above list gets too large and then the older entries are moved to the following lists.

Current Circulars 28000-present   20-06-20 to present
Circulars 27000-27999   20-02-06 to 20-06-20
Circulars 26000-26999   19-10-11 to 20-02-06
Circulars 25000-25999   19-07-06 to 19-10-11
Circulars 24000-24999   19-03-25 to 19-07-06
Circulars 23000-23999   18-07-21 to 19-03-25
Circulars 22000-22999   17-10-12 to 18-07-21
Circulars 21000-21999   17-04-07 to 17-10-12
Circulars 20000-20999   16-10-06 to 17-04-07
Circulars 19000-19999   16-02-07 to 16-10-06
Circulars 18000-18999   15-07-10 to 16-02-07
Circulars 17000-17999   14-10-31 to 15-07-09
Circulars 16000-16999   14-03-20 to 14-10-31
Circulars 15000-15999   13-07-10 to 14-03-19
Circulars 14000-14999   12-11-26 to 13-07-10
Circulars 13000-13999   12-02-29 to 12-11-25
Circulars 12900-12999   12-01-27 to 12-02-29
Circulars 12800-12899   12-01-03 to 12-01-27
Circulars 12700-12799   11-12-17 to 12-01-02
Circulars 12600-12699   11-11-29 to 11-12-16
Circulars 12500-12599   11-10-29 to 11-11-29
Circulars 12400-12499   11-09-28 to 11-10-29
Circulars 12300-12399   11-08-23 to 11-09-28
Circulars 12200-12299   11-07-26 to 11-08-22
Circulars 12100-12199   11-06-27 to 11-07-26
Circulars 12000-12099   11-05-04 to 11-06-27
Circulars 11900-11999   11-04-07 to 11-05-04
Circulars 11800-11899   11-03-18 to 11-04-07
Circulars 11700-11799   11-02-12 to 11-03-18
Circulars 11600-11699   11-01-25 to 11-02-12
Circulars 11500-11599   10-12-26 to 11-01-24
Circulars 11400-11499   10-11-13 to 10-12-26
Circulars 11300-11399   10-09-25 to 10-11-13
Circulars 11200-11299   10-09-03 to 10-09-25
Circulars 11100-11199   10-08-15 to 10-09-03
Circulars 11000-11099   10-07-27 to 10-08-15
Circulars 10900-10999   10-06-28 to 10-07-27
Circulars 10800-10899   10-05-26 to 10-06-28
Circulars 10700-10799   10-04-28 to 10-05-26
Circulars 10600-10699   10-04-15 to 10-04-28
Circulars 10500-10599   10-03-16 to 10-04-15
Circulars 10400-10499   10-02-11 to 10-03-16
Circulars 10300-10399   09-12-31 to 10-02-10
Circulars 10200-10299   09-11-28 to 09-12-30
Circulars 10100-10199   09-10-29 to 09-11-28
Circulars 10000-10099   09-10-08 to 09-10-29
Circulars 9900-9999   09-09-05 to 09-10-08
Circulars 9800-9899   09-08-14 to 09-09-05
Circulars 9700-9799   09-07-22 to 09-08-14
Circulars 9600-9699   09-07-01 to 09-07-22
Circulars 9500-9599   09-06-09 to 09-06-30
Circulars 9400-9499   09-05-19 to 09-06-09
Circulars 9300-9399   09-04-29 to 09-05-19
Circulars 9200-9299   09-04-23 to 09-04-29
Circulars 9100-9199   09-04-06 to 09-04-23
Circulars 9000-9099   09-03-15 to 09-04-06
Circulars 8900-8999   09-02-11 to 09-03-15
Circulars 8800-8899   09-01-12 to 09-02-10
Circulars 8700-8799   08-12-22 to 09-01-12
Circulars 8600-8699   08-12-03 to 08-12-22
Circulars 8500-8599   08-11-09 to 08-12-03
Circulars 8400-8499   08-10-24 to 08-11-08
Circulars 8300-8399   08-09-29 to 08-10-24
Circulars 8200-8299   08-09-08 to 08-09-29
Circulars 8100-8199   08-08-12 to 08-09-08
Circulars 8000-8099   08-07-23 to 08-08-12
Circulars 7900-7999   08-06-23 to 08-07-23
Circulars 7800-7899   08-06-04 to 08-06-23
Circulars 7700-7799   08-05-08 to 08-06-04
Circulars 7600-7699   08-04-13 to 08-05-08
Circulars 7500-7599   08-03-21 to 08-04-13
Circulars 7400-7499   08-03-10 to 08-03-21
Circulars 7300-7399   08-02-13 to 08-03-10
Circulars 7200-7299   08-01-21 to 08-02-13
Circulars 7100-7199   07-11-17 to 08-01-21
Circulars 7000-7099   07-10-25 to 07-11-17
Circulars 6900-6999   07-10-12 to 07-10-25
Circulars 6800-6899   07-09-19 to 07-10-12
Circulars 6700-6799   07-08-02 to 07-09-18
Circulars 6600-6699   07-07-05 to 07-08-02
Circulars 6500-6599   07-06-11 to 07-07-05
Circulars 6400-6499   07-05-09 to 07-06-11
Circulars 6300-6399   07-04-18 to 07-05-09
Circulars 6200-6299   07-03-12 to 07-04-18
Circulars 6100-6199   07-02-12 to 07-03-12
Circulars 6000-6099   07-01-07 to 07-02-12
Circulars 5900-5999   06-12-05 to 07-01-07
Circulars 5800-5899   06-11-10 to 06-12-05
Circulars 5700-5799   06-10-06 to 06-11-10
Circulars 5600-5699   06-09-23 to 06-10-06
Circulars 5500-5599   06-09-03 to 06-09-23
Circulars 5400-5499   06-08-05 to 06-09-03
Circulars 5300-5399   06-07-11 to 06-08-05
Circulars 5200-5299   06-06-10 to 06-07-11
Circulars 5100-5199   06-05-10 to 06-06-03
Circulars 5000-5099   06-04-24 to 06-05-10
Circulars 4900-4999   06-03-21 to 06-04-24
Circulars 4800-4899   06-02-20 to 06-03-21
Circulars 4700-4799   06-02-06 to 06-02-20
Circulars 4600-4699   06-01-25 to 06-02-06
Circulars 4500-4599   06-01-13 to 06-01-25
Circulars 4400-4499   05-12-27 to 06-01-13
Circulars 4300-4399   05-11-22 to 05-12-27
Circulars 4200-4299   05-11-06 to 05-11-22
Circulars 4100-4199   05-10-16 to 05-11-06
Circulars 4000-4099   05-09-19 to 05-10-16
Circulars 3900-3999   05-08-28 to 05-09-18
Circulars 3800-3899   05-08-14 to 05-08-28
Circulars 3700-3799   05-07-29 to 05-08-14
Circulars 3600-3699   05-07-13 to 05-07-29
Circulars 3500-3599   05-05-28 to 05-07-13
Circulars 3400-3499   05-05-10 to 05-05-28
Circulars 3300-3399   05-04-21 to 05-05-10
Circulars 3200-3299   05-04-09 to 05-04-21
Circulars 3100-3199   05-03-16 to 05-04-09
Circulars 3000-3099   05-01-30 to 05-03-16
Circulars 2900-2999   04-12-23 to 05-01-28
Circulars 2800-2899   04-10-13 to 04-12-23
Circulars 2700-2799   04-09-09 to 04-10-13
Circulars 2600-2699   04-05-14 to 04-09-09
Circulars 2500-2599   03-12-22 to 04-05-14
Circulars 2400-2499   03-09-25 to 03-12-21
Circulars 2300-2399   03-07-15 to 03-09-24
Circulars 2200-2299   03-05-03 to 03-07-15
Circulars 2100-2199   03-04-05 to 03-05-03
Circulars 2000-2099   03-03-27 to 03-04-05
Circulars 1900-1999   03-02-27 to 03-03-29
Circulars 1800-1899   03-01-11 to 03-02-27
Circulars 1700-1799   02-11-20 to 03-01-11
Circulars 1600-1699   02-10-07 to 02-11-19
Circulars 1500-1599   02-08-16 to 02-10-07
Circulars 1400-1499   02-05-31 to 02-08-16
Circulars 1300-1399   02-03-22 to 02-05-31
Circulars 1200-1299   01-12-13 to 02-03-12
Circulars 1100-1199   01-09-22 to 01-12-13
Circulars 1000-1099   01-03-02 to 01-09-22
Circulars 900-999   00-12-14 to 01-03-01
Circulars 800-899   00-09-27 to 00-12-14
Circulars 700-799   00-06-13 to 00-09-27
Circulars 600-699   00-03-08 to 00-06-13
Circulars 500-599   99-12-16 to 00-03-08
Circulars 400-499   99-08-10 to 99-12-16
Circulars 300-399   99-05-08 to 99-08-10
Circulars 199-299   99-01-23 to 99-05-07
Circulars 100-198   98-06-13 to 99-01-22
Circulars neg4-099   97-02-?? to 98-06-13

Tar file of all the circulars (as of a couple minutes after every midnight US EastCoast local time).
This tarfile is a convenient way of getting all the Circulars if you want to 'mine' them for some particular need.
(If you are willing to share, I would appreciate getting a copy (for my own private GCN_Administrater use)
of whatever statistical analyses you derive from your mining.)