Gamma-ray Burst 001019

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN notice #855
  K. Hurley, on behalf of the Ulysses GRB team, T. Cline, on behalf of the Konus-Wind and NEAR GRB teams, and E. Mazets, and S. Golenetskii, on behalf of the KONUS-WIND GRB team, report:
  Ulysses, NEAR, and KONUS-WIND observed this GRB at 86375 seconds. As observed by Ulysses, it had a duration of approximately 10. seconds, a 25-100 keV fluence of approximately 7.3E-06 erg/cm2, and a peak flux of approximately 2.0E-06 erg/cm2 s over 0.25 seconds We have triangulated it to a preliminary, 3 sigma error whose approximate area is 26. sq. arcmin. and whose coordinates are:
  

       RA(2000)                                DEC(2000)
   ERROR BOX CENTER:  17 h 11 m 44.08 s     35 o 20 '  13.51 " 
   ERROR BOX CORNER 1: 17 h 11 m 35.00 s     35 o 19 '  45.73 " 
   ERROR BOX CORNER 2: 17 h 12 m  5.56 s     35 o 14 '  18.33 " 
   ERROR BOX CORNER 3: 17 h 11 m 22.60 s     35 o 26 '   8.49 " 
   ERROR BOX CORNER 4: 17 h 11 m 53.16 s     35 o 20 '  41.28 " 
  

  This error box may be improved
• GCN notice #858
  A. Henden (USRA/USNO) D. Kaiser (Crescent Moon Observatory) D. Hohman, R. Pason, B. Aquino (Buffalo Astronomical Association) report:
  We have observed the error box of GRB001019 as part of the monitoring effort by the AAVSO GRB network. R-band images of the entire error box taken 001021 at 0100 UT with a limiting magnitude of R=18.0, based on USNO-A2.0 reference stars, do not show any new object in comparison with the DSS scans of the POSS-II red plate. Unfiltered images with a similar limiting magnitude and covering about 95 percent of the error box, taken 001021 between 0200 and 0300 UT, do not show any new object.