////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Tue 23 Apr 24 10:43:39 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S240423br TRIGGER_DATE: 20423 TJD; 114 DOY; 2024/04/23 (yyyy/mm/dd) TRIGGER_TIME: 38584.422754 SOD {10:43:04.422754} UT SEQUENCE_NUM: 1 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 1 = MBTA FAR: 5.733e-08 [Hz] (one per 201.9 days) (one per 0.55 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: 0.94 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.06 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x1898803 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S240423br/files/bayestar.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S240423br/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: Tue 23 Apr 24 10:48:17 UT NOTICE_TYPE: LVC Preliminary TRIGGER_NUM: S240423br TRIGGER_DATE: 20423 TJD; 114 DOY; 2024/04/23 (yyyy/mm/dd) TRIGGER_TIME: 38584.422754 SOD {10:43:04.422754} UT SEQUENCE_NUM: 2 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 1 = AllSky PIPELINE_TYPE: 1 = MBTA FAR: 5.733e-08 [Hz] (one per 201.9 days) (one per 0.55 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: 0.94 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.06 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x2898A03 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S240423br/files/bayestar.multiorder.fits,1 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S240423br/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_RETRACTION NOTICE NOTICE_DATE: Tue 23 Apr 24 11:26:47 UT NOTICE_TYPE: LVC Retraction TRIGGER_NUM: S240423br TRIGGER_DATE: 20423 TJD; 114 DOY; 2024/04/23 (yyyy/mm/dd) TRIGGER_TIME: 38584.422754 SOD {10:43:04.422754} UT SEQUENCE_NUM: 3 TRIGGER_ID: 0x30 MISC: 0x3898B00 COMMENTS: LVC Retraction of a previous Alert. COMMENTS: COMMENTS: NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. COMMENTS: This event is an OpenAlert.