Gamma-ray Burst 010728

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:                    GCN/RXTE_ASM BURST POSITION NOTICE
  NOTICE_DATE:              Mon 30 Jul 01 16:06:22 UT
  NOTICE_TYPE:              RXTE-ASM Initial
  TRIGGER_NUM:              No correlation with BATSE is possible.
  GRB_DATE:                 12118 TJD;   209 DOY;   01/07/28
  GRB_TIME:                 69887.23 SOD {19:24:47.23} UT
  POSITION_TYPE:            Box
  GRB_RXTE_RA:              175.030d {+11h 40m 07s} (J2000),
                            175.050d {+11h 40m 12s} (current),
                            174.393d {+11h 37m 34s} (1950)
  GRB_RXTE_DEC:              -7.950d {-07d 56' 59"} (J2000),
                             -7.959d {-07d 57' 30"} (current),
                             -7.673d {-07d 40' 21"} (1950)
  GRB_ERROR_RA1:            174.960d {+11h 39m 50s} (J2000)
  GRB_ERROR_DEC1:            -7.880d {-07d 52' 47"} (J2000)
  GRB_ERROR_RA2:            175.040d {+11h 40m 10s} (J2000)
  GRB_ERROR_DEC2:            -7.930d {-07d 55' 47"} (J2000)
  GRB_ERROR_RA3:            175.110d {+11h 40m 26s} (J2000)
  GRB_ERROR_DEC3:            -8.020d {-08d 01' 11"} (J2000)
  GRB_ERROR_RA4:            175.010d {+11h 40m 02s} (J2000)
  GRB_ERROR_DEC4:            -7.960d {-07d 57' 35"} (J2000)
  GRB_RXTE_ERROR:           0.100 [deg radius (stat+sys), 90%]
  GRB_RXTE_INTEN:           2300.00 [mCrab]
  SUN_POSTN:                128.15d {+08h 32m 35s}  +18.83d {+18d 49' 39"}
  SUN_DIST:                  53.43 [deg]
  MOON_POSTN:               231.52d {+15h 26m 05s}  -14.96d {-14d 57' 49"}
  MOON_DIST:                 55.65 [deg]
  COMMENTS:                 RXTE-ASM GRB Coordinates.  
  COMMENTS:                 20 sec event, very hard spectrum, GRB likely  
  COMMENTS:                 Report is 1.8 days later than event (during weeknd). 
  
  

• GCN notice #1083
  M. Feroci (IAS/CNR, Rome), C. Guidorzi (Univ. of Ferrara) and F. Frontera (Univ. of Ferrara and ITESRE/CNR, Bologna), report on behalf of the BeppoSAX GRBM Team:
  "The BeppoSAX Gamma Ray Burst Monitor (GRBM) was triggered by a gamma ray burst on July 28, 2001, 19:24:45.028 UT (GRBM automatic alert n.265). The event observed by the RXTE/ASM on the same day at 19:24:47.23 UT (BACODINE notice on 30 July 2001, 16:06:22 UT) is therefore most likely the same event. As seen by the GRBM in the 40-700 keV energy range, the event was rather weak, showing a peak flux of about 240 counts/s, and approximately 8 s long."
  This message may be cited.