////////////////////////////////////////////////////////////////////// TITLE: GCN/LVC NOTICE NOTICE_DATE: Mon 18 Sep 23 11:19:38 UT NOTICE_TYPE: LVC Early_Warning TRIGGER_NUM: S230918aq TRIGGER_DATE: 20205 TJD; 261 DOY; 2023/09/18 (yyyy/mm/dd) TRIGGER_TIME: 40781.000000 SOD {11:19:41.000000} UT SEQUENCE_NUM: 1 GROUP_TYPE: 1 = CBC SEARCH_TYPE: 0 = undefined PIPELINE_TYPE: 15 = pycbc FAR: 5.419e-08 [Hz] (one per 213.6 days) (one per 0.59 years) PROB_NS: 1.00 [range is 0.0-1.0] PROB_REMNANT: 1.00 [range is 0.0-1.0] PROB_BNS: 0.79 [range is 0.0-1.0] PROB_NSBH: 0.00 [range is 0.0-1.0] PROB_BBH: 0.00 [range is 0.0-1.0] PROB_MassGap: 0.00 [range is 0.0-1.0] PROB_TERRES: 0.21 [range is 0.0-1.0] TRIGGER_ID: 0x10 MISC: 0x1898403 SKYMAP_FITS_URL: https://gracedb.ligo.org/api/superevents/S230918aq/files/bayestar.multiorder.fits,0 EVENTPAGE_URL: https://gracedb.ligo.org/superevents/S230918aq/view/ COMMENTS: LVC Early_Warning 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: Mon 18 Sep 23 11:52:58 UT NOTICE_TYPE: LVC Retraction TRIGGER_NUM: S230918aq TRIGGER_DATE: 20205 TJD; 261 DOY; 2023/09/18 (yyyy/mm/dd) TRIGGER_TIME: 40781.000000 SOD {11:19:41.000000} UT SEQUENCE_NUM: 2 TRIGGER_ID: 0x30 MISC: 0x2898700 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.