////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Mon 31 Mar 25 08:53:12 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S250331af TRIGGER_DATE: 20765 TJD; 90 DOY; 2025/03/31 (yyyy/mm/dd) TRIGGER_TIME: 31958.002316 SOD {08:52:38.002316} UT SEQUENCE_NUM: 1 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 4 = gstlal FAR: 1.464e-05 [Hz] (one per 0.8 days) (one per 0.00 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: 0.08 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.92 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x1898407 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S250331af/files/bayestar.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S250331af/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: Mon 31 Mar 25 08:57:47 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S250331af TRIGGER_DATE: 20765 TJD; 90 DOY; 2025/03/31 (yyyy/mm/dd) TRIGGER_TIME: 31957.998778 SOD {08:52:37.998778} UT SEQUENCE_NUM: 2 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 4 = gstlal FAR: 1.464e-05 [Hz] (one per 0.8 days) (one per 0.00 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: 0.08 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.92 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x2898607 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S250331af/files/bayestar.multiorder.fits,1 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S250331af/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.