========================================================================== BAT GROUND-DETECTED GRB DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Apr 13 01:28:20 EDT 2015 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/ground_detect_bursts/scripts ====================================================================== Trigger: 00509285 Segment: 000 BAT Trigger Time: 345025696.0 UTC: 2011-12-08T08:28:08.346 [includes UTCF correction] Where From?: Ground analysis (best_duration.txt) NOTE: BAT trigger time for ground-detected burst is the T100 start time. Refined Position: [ source = BAT pre-slew image ] RA: 290.217550597 Dec: 40.6752729429 [deg; J2000] { 19h 20m 52.2s , +40d 40' 31.0" } +/- 2.38401380316 [arcmin] (estimated 90% radius based on SNR) SNR: 8.79351837437 Angular difference between the GCN position (ra=290.2151, dec=40.6686 deg) and this refined position is 0.416 arcmin Partial Coding Fraction: 0.06738281 [ including projection effects ] Duration T90: 168. +/- 1.6 Measured from: 8 to: 176 [s; relative to TRIGTIME] T50: 92.8000000715256 +/- 1.6 Measured from: 46.4 to: 139.2 [s; relative to TRIGTIME]