{
  "bibcode": "2013GCN.15278....1H",
  "body": "K. Hurley, on behalf of the IPN team, \n\nS. Golenetskii, R. Aptekar, V. Pal'shin, D. Frederiks, \nD. Svinkin, and T. Cline, on behalf of the Konus-Wind team,\n\nI. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin,\non behalf of the HEND-Odyssey GRB team,\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr, on\nbehalf of the GRS-Odyssey GRB team,\n\nD. M. Smith, J. McTiernan, R. Schwartz, W.\nHajdas, and A. Zehnder, on behalf of the RHESSI GRB team, \n\nA. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C.\nFerrigno, on behalf of the INTEGRAL SPI-ACS GRB team,\n\nK. Yamaoka, M. Ohno, Y. Hanabata, Y. Fukazawa, T. Takahashi, M. Tashiro,\nY. Terada, T. Murakami, and K. Makishima on behalf of the Suzaku WAM team,\n\nS. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer, on behalf of\nthe Swift-BAT team,\n\nJ. Goldsten, on behalf of the MESSENGER NS GRB team, and \n\nV. Connaughton, M. S. Briggs, C. Meegan, and V. Pelassa, on behalf of the Fermi\nGBM team, report:\n\nEight IPN spacecraft observed GRB 130925A (Lien et al. GCN 15246,\nMarkwardt et al. 15247).  When the responses of all the spacecraft are\nconsidered, the IPN had an uninterrupted view of this event from\nroughly 900 s before the Swift BAT trigger, to ~7100 s after it.\nConstraints on the arrival directions of the four main emission\nepisodes strengthen the case for their common origin, as suggested by\nSavchenko et al. (GCN 15259).  The following table details the\nobservations.  The times are relative to the BAT trigger at 15084 s UT\n(04:11:24).  N/O means the episode was not observable.\n\n ----------------------------------------------------------------------------\n Instrument/ |    Precursor |   1st         |   2nd          |    3rd\n spacecraft  |      -900 s  | episode       | episode        |  episode*\n             |              | -130 -> +170 s|+1750 -> +2950 s|+3730 -> +4360 s\n ----------------------------------------------------------------------------\n Swift BAT          No           Trig            N/O              No\n Fermi GBM          Trig         Trig            N/O              No\n INTEGRAL SPI-ACS   No           Yes             Yes              Yes\n Konus Wind         Yes          Yes             Yes              Yes\n MESSENGER          No           Yes             Yes              No\n Mars Odyssey       No           N/O             Yes              No\n Suzaku WAM         No           No              Yes              No\n RHESSI             Yes          Yes             N/O              No\n------------------------------------------------------------------------------\n*also observed and localized by MAXI (Suzuki et al. GCN 15248)\n\nWe conclude from these observations that the total duration of this\nevent in >25 keV gamma-rays above the IPN flux/fluence threshold was \nat least 5260 s, and ~7150 s long when the later episodes, observed only\nby BAT (GCN 15257), are included.",
  "circularId": 15278,
  "createdOn": 1380578733000,
  "email": "khurley@ssl.berkeley.edu",
  "subject": "IPN Observations of GRB 130925A",
  "submitter": "Kevin Hurley at UCBerkeley/SSL  <khurley@ssl.berkeley.edu>",
  "eventId": "GRB 130925A"
}