////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Thu 27 Feb 25 00:13:14 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S250227e TRIGGER_DATE: 20733 TJD; 58 DOY; 2025/02/27 (yyyy/mm/dd) TRIGGER_TIME: 765.483708 SOD {00:12:45.483708} UT SEQUENCE_NUM: 1 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 4 = gstlal FAR: 2.594e-12 [Hz] (one per 4461555.1 days) (one per 12223.44 years) PROB_NS: 0.00 [range is 0.0-1.0] PROB_REMNANT: 0.00 [range is 0.0-1.0] PROB_BNS: 0.00 [range is 0.0-1.0] PROB_NSBH: 0.00 [range is 0.0-1.0] PROB_BBH: 1.00 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.00 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x1899407 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S250227e/files/bayestar.multiorder.fits,1 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S250227e/view/ COMMENTS: LVC Preliminary Trigger Alert. COMMENTS: This event is an OpenAlert. COMMENTS: LIGO-Hanford Observatory contributed to this candidate event. COMMENTS: LIGO-Livingston Observatory contributed to this candidate event. COMMENTS: VIRGO Observatory contributed to this candidate event. ////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Thu 27 Feb 25 00:17:51 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S250227e TRIGGER_DATE: 20733 TJD; 58 DOY; 2025/02/27 (yyyy/mm/dd) TRIGGER_TIME: 765.473754 SOD {00:12:45.473754} UT SEQUENCE_NUM: 2 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 4 = gstlal FAR: 2.594e-12 [Hz] (one per 4461555.1 days) (one per 12223.44 years) PROB_NS: 0.00 [range is 0.0-1.0] PROB_REMNANT: 0.00 [range is 0.0-1.0] PROB_BNS: 0.00 [range is 0.0-1.0] PROB_NSBH: 0.00 [range is 0.0-1.0] PROB_BBH: 1.00 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.00 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x2899607 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S250227e/files/bayestar.multiorder.fits,2 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S250227e/view/ COMMENTS: LVC Preliminary Trigger Alert. COMMENTS: This event is an OpenAlert. COMMENTS: LIGO-Hanford Observatory contributed to this candidate event. COMMENTS: LIGO-Livingston Observatory contributed to this candidate event. COMMENTS: VIRGO Observatory contributed to this candidate event. ////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Thu 27 Feb 25 00:47:28 UT NOTICE_TYPE: LVC Initial Skymap TRIGGER_NUM: S250227e TRIGGER_DATE: 20733 TJD; 58 DOY; 2025/02/27 (yyyy/mm/dd) TRIGGER_TIME: 765.473754 SOD {00:12:45.473754} UT SEQUENCE_NUM: 3 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 4 = gstlal FAR: 2.594e-12 [Hz] (one per 4461555.1 days) (one per 12223.44 years) PROB_NS: 0.00 [range is 0.0-1.0] PROB_REMNANT: 0.00 [range is 0.0-1.0] PROB_BNS: 0.00 [range is 0.0-1.0] PROB_NSBH: 0.00 [range is 0.0-1.0] PROB_BBH: 1.00 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.00 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x3899607 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S250227e/files/bayestar.multiorder.fits,2 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S250227e/view/ COMMENTS: LVC Super Initial Skymap -- a location probability map. COMMENTS: This event is an OpenAlert. COMMENTS: LIGO-Hanford Observatory contributed to this candidate event. COMMENTS: LIGO-Livingston Observatory contributed to this candidate event. COMMENTS: VIRGO Observatory contributed to this candidate event. ////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Thu 27 Feb 25 17:38:11 UT NOTICE_TYPE: LVC Update Skymap TRIGGER_NUM: S250227e TRIGGER_DATE: 20733 TJD; 58 DOY; 2025/02/27 (yyyy/mm/dd) TRIGGER_TIME: 765.473754 SOD {00:12:45.473754} UT SEQUENCE_NUM: 4 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 4 = gstlal FAR: 2.594e-12 [Hz] (one per 4461555.1 days) (one per 12223.44 years) PROB_NS: 0.00 [range is 0.0-1.0] PROB_REMNANT: 0.00 [range is 0.0-1.0] PROB_BNS: 0.00 [range is 0.0-1.0] PROB_NSBH: 0.00 [range is 0.0-1.0] PROB_BBH: 0.52 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.48 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x4899607 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S250227e/files/Bilby.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S250227e/view/ COMMENTS: LVC Super Updated Skymap -- a location probability map. COMMENTS: This event is an OpenAlert. COMMENTS: LIGO-Hanford Observatory contributed to this candidate event. COMMENTS: LIGO-Livingston Observatory contributed to this candidate event. COMMENTS: VIRGO Observatory contributed to this candidate event.