Gamma-ray Burst 020706

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:             GCN/IPN POSITION NOTICE
  NOTICE_DATE:       Sun 07 Jul 02 18:16:23 UT
  NOTICE_TYPE:       IPN Single Box
  IPN_NUMBER:        344
  GRB_DATE:          12461 TJD;   187 DOY;   02/07/06
  GRB_TIME:          12626.00 SOD {03:30:26.00} UT
  GRB_IPN_RA:        215.3968d {+14h 21m 35s} (J2000),
                     215.4409d {+14h 21m 46s} (current),
                     214.5229d {+14h 18m 06s} (1950)
  GRB_IPN_DEC:       -55.7615d {-55d 45' 40"} (J2000),
                     -55.7729d {-55d 46' 21"} (current),
                     -55.5333d {-55d 32' 00"} (1950)
  GRB_ERROR1_RA1:    215.4506d {+14h 21m 48s} (J2000)
  GRB_ERROR1_DEC1:   -55.6325d {-55d 37' 56"} (J2000)
  GRB_ERROR1_RA2:    214.8807d {+14h 19m 31s} (J2000)
  GRB_ERROR1_DEC2:   -55.8817d {-55d 52' 53"} (J2000)
  GRB_ERROR1_RA3:    215.9110d {+14h 23m 39s} (J2000)
  GRB_ERROR1_DEC3:   -55.6398d {-55d 38' 22"} (J2000)
  GRB_ERROR1_RA4:    215.3429d {+14h 21m 22s} (J2000)
  GRB_ERROR1_DEC4:   -55.8906d {-55d 53' 25"} (J2000)
  GRB_ERROR:         12.18 [arcmin radius of circumscribing circle, 3 sigma]
  GRB_BOX_AREA:      244 [sq.arcmin]
  GRB_PEAK_FLUX:     7.7e-07 [erg/cm2/sec in 25-100 keV] in a 0.25 sec interval
  GRB_FLUENCE:       1.6e-06 [erg/cm2 in 25-100 keV]
  GRB_DURATION:      20.0 [sec]
  SUN_POSTN:         105.11d {+07h 00m 27s}  +22.71d {+22d 42' 41"}
  SUN_DIST:          119.97 [deg]
  MOON_POSTN:         50.08d {+03h 20m 18s}  +15.98d {+15d 58' 47"}
  MOON_DIST:         138.66 [deg]
  GAL_COORDS:        315.43,4.91 [deg] galactic lon,lat of the burst
  ECL_COORDS:        233.85,-38.97 [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 #1447
  K. Hurley, on behalf of the Ulysses GRB team,
  T. Cline, on behalf of the Ulysses and Konus-Wind 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,
  W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R.Starr, on behalf of the GRS/Odyssey GRB team, report:
  Ulysses, Konus-Wind, and Mars Odyssey-HEND observed this burst at 12627 s.
  As observed by Ulysses, it had a duration of approximately 20 seconds, a 25-100 keV fluence of approximately 1.6E-06 erg/cm2, and a peak flux of approximately 7.7E-07 erg/cm2 s over 0.25 seconds.
  We have triangulated it to a preliminary, 3 sigma error box whose approximate area is ~150. sq. arcmin. and whose coordinates are:

      RA(2000)                              DEC(2000)
   ERROR BOX CENTER:  14 h 21 m 35.25 s    -55 o 45 '  41.76 " 
   ERROR BOX CORNER 1: 14 h 21 m 48.16 s    -55 o 37 '  57.10 " 
   ERROR BOX CORNER 2: 14 h 21 m 22.31 s    -55 o 53 '  26.38 " 
   ERROR BOX CORNER 3: 14 h 20 m 55.35 s    -55 o 43 '  45.23 " 
   ERROR BOX CORNER 4: 14 h 22 m 26.03 s    -55 o 33 '  46.26 " 
   ERROR BOX CORNER 5: 14 h 22 m 22.65 s    -55 o 38 '  05.81 "
   ERROR BOX CORNER 6: 14 h 20 m 47.59 s    -55 o 53 '  16.88 "
  

  This error box may be improved.
  A map will be posted shortly at http://ssl.berkeley.edu/ipn3/020706. Note that a somewhat larger, four-sided error box was circulated in the GCN socket message, for reasons related to the formatting of those messages. The above, smaller error box is the more precise one. The Konus ecliptic latitude response has been used to distinguish between the two possible error boxes in this 3-spacecraft triangulation. There is a very small chance that the alternate error box could in fact be the correct one; we are now attempting to obtain more data to confirm this triangulation.
• GCN notice #1448
  K. Hurley reports:
  There was an error in the coordinates of the fourth corner of the error box in GCN 1447. The error box corners are:

                         RA(2000)         DEC(2000)
  
   ERROR BOX CENTER:   14h 21m 35.25s  -55o 45' 41.76" 
   ERROR BOX CORNER 1: 14h 21m 48.16s  -55o 37' 57.10" 
   ERROR BOX CORNER 2: 14h 21m 22.31s  -55o 53' 26.38" 
   ERROR BOX CORNER 3: 14h 20m 55.35s  -55o 43' 45.23" 
   ERROR BOX CORNER 4: 14h 22m 15.61s  -55o 47' 37.62" << corrected coordinates
   ERROR BOX CORNER 5: 14h 22m 22.65s  -55o 38' 05.81"
   ERROR BOX CORNER 6: 14h 20m 47.59s  -55o 53' 16.88"
  

  We are still waiting for more data to confirm that this is indeed the correct intersection.
• GCN notice #1449
  S. Golenetskii and E. Mazets, on behalf of the Konus-Wind GRB team, and
  K. Hurley, on behalf of the Ulysses GRB team, report:
  Analysis of the Konus-Wind data indicates that the position given in GCN 1447 and 1448 is indeed the correct one.