Gamma-ray Burst 210624A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN NOTICE
  

  TITLE:           GCN/FERMI NOTICE
  NOTICE_DATE:     Thu 24 Jun 21 14:26:31 UT
  NOTICE_TYPE:     Fermi-GBM Final Position
  RECORD_NUM:      0
  TRIGGER_NUM:     646189108
  GRB_RA:          119.320d {+07h 57m 17s} (J2000),
                   121.615d {+08h 06m 28s} (current),
                   113.639d {+07h 34m 33s} (1950)
  GRB_DEC:         +87.110d {+87d 06' 36"} (J2000),
                   +87.049d {+87d 02' 58"} (current),
                   +87.235d {+87d 14' 05"} (1950)
  GRB_ERROR:       4.64 [deg radius, statistical only]
  GRB_DATE:        19389 TJD;   175 DOY;   21/06/24
  GRB_TIME:        3503.25 SOD {00:58:23.25} UT
  GRB_PHI:         277.00 [deg]
  GRB_THETA:       123.00 [deg]
  E_RANGE:         50.000 - 300.000 [keV]
  LOC_ALGORITHM:   415 (Gnd S/W Version number)
  SUN_POSTN:        93.60d {+06h 14m 23s}  +23.39d {+23d 23' 41"}
  SUN_DIST:         64.01 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
  MOON_POSTN:      271.00d {+18h 04m 00s}  -25.29d {-25d 17' 38"}
  MOON_DIST:       117.82 [deg]
  MOON_ILLUM:      100 [%]
  GAL_COORDS:      126.07, 27.91 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       93.23, 64.00 [deg] ecliptic lon,lat of the burst (or transient)
  LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210624041/quicklook/glg_lc_medres34_bn210624041.gif
  LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210624041/quicklook/glg_locplot_all_bn210624041.png
  COMMENTS:        Fermi-GBM Final Position.  
  COMMENTS:        This Notice was ground-generated -- not flight-generated.  
  COMMENTS:        The LC_URL file should be available by the time this FINAL notice is produced.  
  COMMENTS:        This notice has human-in-the-loop processing.  
  

• GCN Circular #30318
  D. Svinkin, S. Golenetskii, D. Frederiks, A. Ridnaia, A. Lysenko, and T. Cline on behalf of the Konus-Wind team,
  K. Hurley, on behalf of the IPN,
  A. Goldstein, M. S. Briggs, and C. Wilson-Hodge on behalf of the Fermi GBM team,
  and
  A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, report:
  The short-duration GRB 210624A was detected by Fermi (GBM trigger 646189108), Konus-Wind, and INTEGRAL (SPI-ACS) at about 3503 s UT (00:58:23).
  We have triangulated it to a preliminary, 3 sigma error box whose coordinates are:

    ---------------------------------------------
     RA(2000), deg                 Dec(2000), deg
    ---------------------------------------------
    Center:
      54.243 (03h 36m 58s) +80.364 (+80d 21' 49")
    Corners:
      50.629 (03h 22m 31s) +77.944 (+77d 56' 38")
      48.706 (03h 14m 49s) +77.917 (+77d 55' 01")
      60.700 (04h 02m 48s) +82.723 (+82d 43' 23")
      63.941 (04h 15m 46s) +82.672 (+82d 40' 18")
    ---------------------------------------------
  

  The error box area is 1.96 sq. deg, and its maximum dimension is 5.36 deg (the minimum one is 22.7 arcmin). The Sun distance was 58 deg.
  This box may be improved.
  The IPN localization is consistent with, but reduces the area of, the Fermi final position.
  A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB210624_T03500/IPN
  The time history and spectrum will be given in forthcoming GCN Circulars.