========================================================================== BAT GROUND-DETECTED GRB DATA PROCESSING REPORT (This burst occurred during telescope slew) Process Script Ver: batgrbproduct v2.46 Process Start Time: Tue Nov 11 08:47:39 EST 2014 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB090418B ====================================================================== Trigger: 00090078 Segment: 001 BAT Trigger Time: 261737965.0 UTC: 2009-04-18T08:59:20.331 [includes UTCF correction] Where From?: Ground analysis (best_duration.txt) NOTE: BAT trigger time for ground-detected burst during slew is the T100 start time. Refined Position: [ source = BAT mosaic image ] RA: 225.914157234555 Dec: 17.2304913823518 [deg; J2000] { 15h 03m 39.4s , +17d 13' 49.8" } +/- 0.392204406676 [arcmin] (estimated 90% radius based on SNR) SNR: 115.843500037 Angular difference between the GCN position and this refined position is 0.457 arcmin Partial Coding Fraction: Unavailable because the burst occurred during slew. Duration T90: 38. +/- 1. Measured from: 3 to: 41 [s; relative to TRIGTIME] T50: 16. +/- 1. Measured from: 13 to: 29 [s; relative to TRIGTIME]