Gamma-ray Burst 021013

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN notice #1632
  K. Hurley and T. Cline, on behalf of the Ulysses and Mars Odyssey GRB teams,
  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, HEND, and GRS observed this burst at around 13622 +/- 907 s. As observed by Ulysses, it had a duration of ~100 s, a 25-100 keV fluence ~6.7E-6 erg/cm2, and a peak flux over 0.5 s of ~9x10^-7 erg/cm2 s. We have localized it to an annulus centered at RA, Decl=351.792, -65.129 degrees, whose radius is 52.578 +/- 0.1 degrees.
  All the above numbers are based on a very preliminary analysis; in particular, since the burst has only been localized to an annulus, the Earth-crossing time cannot be given to better precision. It is possible that one of the near-Earth spacecraft in the IPN detected it, so it should eventually be possible to obtain a more precise position and Earth-crossing time.
  
• GCN notice #1634
  K. Hurley and T. Cline, on behalf of the Ulysses, Konus, and Mars Odyssey GRB teams,
  I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin, on behalf of the HEND/Odyssey GRB team,
  W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS/Odyssey GRB team, and
  E. Mazets and S. Golenetskii, on behalf of the Konus-Wind and Helicon-Coronas-F GRB teams, report:
  Ulysses, Mars Odyssey (HEND and GRS), Helicon, and Konus-Wind observed this GRB at 14496 seconds (GCN 1632). We have triangulated it to two alternate, preliminary 3 sigma error boxes, each with area ~80 sq. arcminutes:

      RA(2000)                              DEC(2000)
   ERROR BOX CENTER:  14 h 51 m 55.41 s    -56 o 13 '  55.57 " 
   ERROR BOX CORNER 1: 14 h 53 m 22.84 s    -56 o  3 '  41.08 " 
   ERROR BOX CORNER 2: 14 h 54 m 23.38 s    -55 o 59 '  49.55 " 
   ERROR BOX CORNER 3: 14 h 49 m 22.86 s    -56 o 28 '   9.56 " 
   ERROR BOX CORNER 4: 14 h 50 m 26.16 s    -56 o 24 '  13.51 " 
  
  OR
  
   ERROR BOX CENTER: 9 h 32 m 54.34 s    -60 o 29 ' 43.75"
   ERROR BOX CORNER 5: 9 h 31 m  3.13 s    -60 o 21 '  40.45 " 
   ERROR BOX CORNER 6: 9 h 29 m 50.52 s    -60 o 19 '  16.57 "  
   ERROR BOX CORNER 7: 9 h 36 m  3.62 s    -60 o 40 '   9.89 " 
   ERROR BOX CORNER 8: 9 h 34 m 47.79 s    -60 o 37 '  46.96 " 
  
  

  There is a strong probability, which cannot be quantified, that the latter is in fact the correct position. We will attempt to verify this as soon as possible.
  These error boxes may be improved.
• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:             GCN/IPN POSITION NOTICE
  NOTICE_DATE:       Mon 14 Oct 02 19:40:52 UT
  NOTICE_TYPE:       IPN Single Box
  IPN_NUMBER:        390
  GRB_DATE:          12560 TJD;   286 DOY;   02/10/13
  GRB_TIME:          14496.00 SOD {04:01:36.00} UT
  GRB_IPN_RA:        143.2264d {+09h 32m 54s} (J2000),
                     143.2456d {+09h 32m 59s} (current),
                     142.8802d {+09h 31m 31s} (1950)
  GRB_IPN_DEC:       -60.4954d {-60d 29' 42"} (J2000),
                     -60.5078d {-60d 30' 27"} (current),
                     -60.2729d {-60d 16' 21"} (1950)
  GRB_ERROR1_RA1:    142.7630d {+09h 31m 03s} (J2000)
  GRB_ERROR1_DEC1:   -60.3612d {-60d 21' 39"} (J2000)
  GRB_ERROR1_RA2:    142.4605d {+09h 29m 51s} (J2000)
  GRB_ERROR1_DEC2:   -60.3212d {-60d 19' 15"} (J2000)
  GRB_ERROR1_RA3:    144.0150d {+09h 36m 04s} (J2000)
  GRB_ERROR1_DEC3:   -60.6694d {-60d 40' 09"} (J2000)
  GRB_ERROR1_RA4:    143.6991d {+09h 34m 48s} (J2000)
  GRB_ERROR1_DEC4:   -60.6297d {-60d 37' 46"} (J2000)
  GRB_ERROR:         20.66 [arcmin radius of circumscribing circle, 3 sigma]
  GRB_BOX_AREA:      82 [sq.arcmin]
  GRB_PEAK_FLUX:     9.1e-07 [erg/cm2/sec in 25-100 keV] in a 0.50 sec interval
  GRB_FLUENCE:       1.2e-05 [erg/cm2 in 25-100 keV]
  GRB_DURATION:      121.0 [sec]
  SUN_POSTN:         198.14d {+13h 12m 34s}   -7.69d {-07d 41' 13"}
  SUN_DIST:           66.61 [deg]
  MOON_POSTN:        291.08d {+19h 24m 18s}  -25.23d {-25d 14' 03"}
  MOON_DIST:          90.34 [deg]
  GAL_COORDS:        280.74,-6.49 [deg] galactic lon,lat of the burst
  ECL_COORDS:        190.86,-66.32 [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.  
   

    RA(2000)                              DEC(2000)
 
 ERROR BOX CENTER:  14 h 51 m 55.41 s    -56 o 13 '  55.57 " 
 ERROR BOX CORNER 1: 14 h 53 m 22.84 s    -56 o  3 '  41.08 " 
 ERROR BOX CORNER 2: 14 h 54 m 23.38 s    -55 o 59 '  49.55 " 
 ERROR BOX CORNER 3: 14 h 49 m 22.86 s    -56 o 28 '   9.56 " 
 ERROR BOX CORNER 4: 14 h 50 m 26.16 s    -56 o 24 '  13.51 "