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TITLE:            GCN/LVC NOTICE
NOTICE_DATE:      Wed 20 Nov 19 20:16:05 UT
NOTICE_TYPE:      LVC Preliminary
TRIGGER_NUM:      S191120at
TRIGGER_DATE:     18807 TJD;   324 DOY;   2019/11/20 (yyyy/mm/dd)
TRIGGER_TIME:     72517.323325 SOD {20:08:37.323325} UT
SEQUENCE_NUM:     1
GROUP_TYPE:       1 = CBC
SEARCH_TYPE:      1 = AllSky
PIPELINE_TYPE:    4 = gstlal
FAR:              6.109e-09 [Hz]  (one per 1894.5 days)  (one per 5.19 years)
PROB_NS:          0.73 [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:         0.00 [range is 0.0-1.0]
PROB_MassGap:     0.82 [range is 0.0-1.0]
PROB_TERRES:      0.17 [range is 0.0-1.0]
TRIGGER_ID:       0x10
MISC:             0x1898407
SKYMAP_FITS_URL:  https://gracedb.ligo.org/api/superevents/S191120at/files/bayestar.fits.gz,0
EVENTPAGE_URL:    https://gracedb.ligo.org/superevents/S191120at/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.  
 
 
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TITLE:            GCN/LVC_RETRACTION NOTICE
NOTICE_DATE:      Wed 20 Nov 19 20:18:56 UT
NOTICE_TYPE:      LVC Retraction
TRIGGER_NUM:      S191120at
TRIGGER_DATE:     18807 TJD;   324 DOY;   2019/11/20 (yyyy/mm/dd)
TRIGGER_TIME:     72517.323325 SOD {20:08:37.323325} 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.