Gamma-ray Burst 020910

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:             GCN/IPN POSITION NOTICE
  NOTICE_DATE:       Wed 11 Sep 02 16:58:22 UT
  NOTICE_TYPE:       IPN Single Box
  IPN_NUMBER:        377
  GRB_DATE:          12527 TJD;   253 DOY;   02/09/10
  GRB_TIME:          71851.00 SOD {19:57:31.00} UT
  GRB_IPN_RA:        209.0023d {+13h 56m 01s} (J2000),
                     209.0440d {+13h 56m 11s} (current),
                     208.2303d {+13h 52m 55s} (1950)
  GRB_IPN_DEC:       -44.7267d {-44d 43' 35"} (J2000),
                     -44.7398d {-44d 44' 22"} (current),
                     -44.4823d {-44d 28' 55"} (1950)
  GRB_ERROR1_RA1:    209.0777d {+13h 56m 19s} (J2000)
  GRB_ERROR1_DEC1:   -44.6707d {-44d 40' 14"} (J2000)
  GRB_ERROR1_RA2:    208.7510d {+13h 55m 00s} (J2000)
  GRB_ERROR1_DEC2:   -44.7986d {-44d 47' 54"} (J2000)
  GRB_ERROR1_RA3:    209.2523d {+13h 57m 01s} (J2000)
  GRB_ERROR1_DEC3:   -44.6546d {-44d 39' 16"} (J2000)
  GRB_ERROR1_RA4:    208.9267d {+13h 55m 42s} (J2000)
  GRB_ERROR1_DEC4:   -44.7827d {-44d 46' 57"} (J2000)
  GRB_ERROR:         7.94 [arcmin radius of circumscribing circle, 3 sigma]
  GRB_BOX_AREA:      44 [sq.arcmin]
  GRB_PEAK_FLUX:     7.3e-07 [erg/cm2/sec in 25-100 keV] in a 0.25 sec interval
  GRB_FLUENCE:       5.5e-06 [erg/cm2 in 25-100 keV]
  GRB_DURATION:      25.0 [sec]
  SUN_POSTN:         168.90d {+11h 15m 37s}   +4.77d {+04d 46' 11"}
  SUN_DIST:           61.15 [deg]
  MOON_POSTN:        218.24d {+14h 32m 59s}  -12.02d {-12d 01' 26"}
  MOON_DIST:          33.65 [deg]
  GAL_COORDS:        314.83,16.65 [deg] galactic lon,lat of the burst
  ECL_COORDS:        223.80,-30.57 [deg] ecliptic lon,lat of the burst
  COMMENTS:          IPN triangulation localization.  
  COMMENTS:          This is a preliminary, 3 sigma error box.  
  COMMENTS:          GCN message is being issued.  
   
  
  

• GCN notice #1540
  K. Hurley and T. Cline, on behalf of the Ulysses, Konus, and Mars Odyssey GRB +teams,
  E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team,
  I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin, on behalf of the HEND/Odyssey GRB team, and
  W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS/Odyssey GRB team, report:
  Ulysses, Mars Odyssey-HEND, and Konus-Wind observed this GRB at 71852 seconds. As observed by Ulysses, it had a duration of approximately 25 seconds, a 25-100 keV fluence of approximately 5.5E-06 erg/cm2, and a peak flux of approximately 7.3E-07 erg/cm2 s over 0.25 seconds.
  We have triangulated it to a preliminary, 3 sigma error box whose approximate area is 44 sq. arcmin. and whose coordinates are:

      RA(2000)                              DEC(2000)
   ERROR BOX CENTER:  13 h 56 m 0.57 s    -44 o 43 '  36.34 "
   ERROR BOX CORNER 1: 13 h 56 m 18.65 s    -44 o 40 '  14.68 "
   ERROR BOX CORNER 2: 13 h 55 m  0.25 s    -44 o 47 '  55.19 "
   ERROR BOX CORNER 3: 13 h 57 m  0.56 s    -44 o 39 '  16.57 "
   ERROR BOX CORNER 4: 13 h 55 m 42.43 s    -44 o 46 '  57.92 "
  

  Based on the Konus ecliptic latitude determination, this error box is the most likely of the two to be the correct one. We will confirm this as soon as possible.
  This error box may be improved.
  A map will be posted shortly at ssl.berkeley.edu/ipn3/020910
  
• GCN notice #1541
  K. Hurley and T. Cline, on behalf of the Ulysses, Konus, and Mars Odyssey GRB teams,
  D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team,
  E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team,
  I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin, on behalf of the HEND/Odyssey GRB team, and
  W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS/Odyssey GRB team, report:
  We have obtained RHESSI data for this event, which confirm that the error box given in GCN 1540 is indeed the correct one:

      RA(2000)                              DEC(2000)
   
   ERROR BOX CENTER:   13 h 56 m  0.57 s    -44 o 43 '  36.34 " 
   ERROR BOX CORNER 1: 13 h 56 m 18.65 s    -44 o 40 '  14.68 " 
   ERROR BOX CORNER 2: 13 h 55 m  0.25 s    -44 o 47 '  55.19 " 
   ERROR BOX CORNER 3: 13 h 57 m  0.56 s    -44 o 39 '  16.57 " 
   ERROR BOX CORNER 4: 13 h 55 m 42.43 s    -44 o 46 '  57.92 "