Gamma-ray Burst 010104

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN notice #910
  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 62489 seconds. As observed by Ulysses, it had a duration of approximately 2. seconds, a 25-100 keV fluence of approximately 4.7E-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 186. sq. arcmin. and whose coordinates are:
  

      RA(2000)                              DEC(2000)
   ERROR BOX CENTER:   17 h 49 m 45.54 s     18 o 13 '  35.46 " 
   ERROR BOX CORNER 1: 17 h 49 m 12.11 s     18 o  8 '  46.17 " 
   ERROR BOX CORNER 2: 17 h 50 m 55.41 s     18 o 11 '  55.30 " 
   ERROR BOX CORNER 3: 17 h 48 m 35.74 s     18 o 15 '  14.77 " 
   ERROR BOX CORNER 4: 17 h 50 m 18.99 s     18 o 18 '  24.53 "
  

  This error box may be improved.
• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:             GCN/IPN POSITION NOTICE
  NOTICE_DATE:       Sat 06 Jan 01 01:13:43 UT
  NOTICE_TYPE:       IPN Single Box
  IPN_NUMBER:        76
  GRB_DATE:          11912 TJD;     4 DOY;   01/01/04
  GRB_TIME:          62489.00 SOD {17:21:29.00} UT
  GRB_IPN_RA:        267.4397d {+17h 49m 46s} (J2000),
                     267.4508d {+17h 49m 48s} (current),
                     266.8908d {+17h 47m 34s} (1950)
  GRB_IPN_DEC:       +18.2265d {+18d 13' 35"} (J2000),
                     +18.2262d {+18d 13' 34"} (current),
                     +18.2402d {+18d 14' 25"} (1950)
  GRB_ERROR1_RA1:    267.3004d {+17h 49m 12s} (J2000)
  GRB_ERROR1_DEC1:    18.1461d {+18d 08' 46"} (J2000)
  GRB_ERROR1_RA2:    267.7308d {+17h 50m 55s} (J2000)
  GRB_ERROR1_DEC2:    18.1986d {+18d 11' 55"} (J2000)
  GRB_ERROR1_RA3:    267.1489d {+17h 48m 36s} (J2000)
  GRB_ERROR1_DEC3:    18.2541d {+18d 15' 15"} (J2000)
  GRB_ERROR1_RA4:    267.5791d {+17h 50m 19s} (J2000)
  GRB_ERROR1_DEC4:    18.3068d {+18d 18' 24"} (J2000)
  GRB_ERROR:         12.37 [arcmin radius of circumscribing circle, 3 sigma]
  GRB_BOX_AREA:      186 [sq.arcmin]
  GRB_PEAK_FLUX:     7.3e-07 [erg/cm2/sec in 25-100 keV] in a 0.25 sec interval
  GRB_FLUENCE:       4.7e-06 [erg/cm2 in 25-100 keV]
  GRB_DURATION:      2.0 [sec]
  SUN_POSTN:         284.57d {+18h 58m 17s}  -22.76d {-22d 45' 45"}
  SUN_DIST:           44.27 [deg]
  MOON_POSTN:         22.88d {+01h 31m 31s}   +3.91d {+03d 54' 29"}
  MOON_DIST:         112.68 [deg]
  COMMENTS:          IPN triangulation localization.  
  COMMENTS:          This is a preliminary, 3 sigma error box.  
  COMMENTS:          GCN message is being issued.