////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Sat 18 Oct 25 15:26:13 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S251018bi TRIGGER_DATE: 20966 TJD; 291 DOY; 2025/10/18 (yyyy/mm/dd) TRIGGER_TIME: 55546.984375 SOD {15:25:46.984375} UT SEQUENCE_NUM: 1 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 0 = undefined FAR: 3.154e-10 [Hz] (one per 36693.3 days) (one per 100.53 years) TRIGGER_ID: 0x10 MISC: 0x1898803 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S251018bi/files/amplfi.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S251018bi/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. ////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Sat 18 Oct 25 15:30:49 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S251018bi TRIGGER_DATE: 20966 TJD; 291 DOY; 2025/10/18 (yyyy/mm/dd) TRIGGER_TIME: 55547.020995 SOD {15:25:47.020995} UT SEQUENCE_NUM: 2 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 15 = pycbc FAR: 3.168e-10 [Hz] (one per 36533.1 days) (one per 100.09 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: 0x2898A07 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S251018bi/files/bayestar.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S251018bi/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: Sat 18 Oct 25 15:54:56 UT NOTICE_TYPE: LVC Initial Skymap TRIGGER_NUM: S251018bi TRIGGER_DATE: 20966 TJD; 291 DOY; 2025/10/18 (yyyy/mm/dd) TRIGGER_TIME: 55547.020995 SOD {15:25:47.020995} UT SEQUENCE_NUM: 3 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 15 = pycbc FAR: 3.168e-10 [Hz] (one per 36533.1 days) (one per 100.09 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: 0x3898A07 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S251018bi/files/bayestar.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S251018bi/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: Mon 20 Oct 25 18:35:58 UT NOTICE_TYPE: LVC Update Skymap TRIGGER_NUM: S251018bi TRIGGER_DATE: 20966 TJD; 291 DOY; 2025/10/18 (yyyy/mm/dd) TRIGGER_TIME: 55547.020995 SOD {15:25:47.020995} UT SEQUENCE_NUM: 4 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 15 = pycbc FAR: 3.168e-10 [Hz] (one per 36533.1 days) (one per 100.09 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: 0x4898A07 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S251018bi/files/Bilby.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S251018bi/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.