{
  "bibcode": "2007GCN..6089....1G",
  "body": "S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks\non behalf of the Konus-Wind and Konus-A teams,\n\nT. Cline on behalf of the Konus-Wind team,\n\nJ. Cummings, S. Barthelmy, N. Gehrels, and H. Krimm, on behalf of\nthe Swift-BAT team,\n\nA. von Kienlin, G. Lichti, A. Rau, D. Gotz, and S. Mereghetti,\non behalf of the INTEGRAL GRB team,\n\nK.Yamaoka, M.Ohno, Y.Fukazawa, T.Takahashi, M.Tashiro, Y. Terada,\nT.Murakami, and K.Makishima on behalf of the Suzaku WAM team\n\nand\n\nK. Hurley, D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger,\nW. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team\nreport:\n\nA  very bright long hard GRB was observed at 2007-02-07 21:00:44 UT\nby Konus-Wind, Swift-BAT, INTEGRAL-SPI-ACS, Suzaku-WAM, and Konus-A.\nThe Swift satellite was slewing to a new pre-planned target at the time \nof the burst so the BAT did not trigger and was not able to provide a \nposition for the burst. This burst was not observed by Odyssey, probably \ndue to Mars-occultation. RHESSI and Ulysses were off.\n\nThe burst started with a short precursor (with a duration of ~0.05 sec),\nfollowed by a main episode of emission which shows steep rise\nand many sharp peaks, which transformed at T-T0 ~18 s to a smooth tail\nseen up to T-T0 ~70 s.\n\nIt was triangulated to two annuli, whose coordinates are\nRA, Dec, Radius =\n296.570 (19h 46m 17s), -20.358 (-20d 21' 27\"),\n70.549 +/- 0.071,\nand\n299.695 (19h 58m 47s), -23.210 (-23d 12' 35\")\n66.501 +/- 0.178 degrees (3 sigma) .\n\nThe Konus ecliptic latitude response constrains the arrival direction\nto a band between ecliptic latitudes -46 and -30 degrees.\n\nCombining all these data, we have triangulated\nthis burst to a single error box, whose corners are:\n\n     RA, deg                  Dec, deg\n1: 16.578 (01h 06m 19s)   -34.714 (-34d 42' 49\")\n2: 14.860 (00h 59m 26s)   -28.754 (-28d 45' 13\")\n3: 18.478 (01h 13m 55s)   -43.139 (-43d 08' 19\")\n4: 18.655 (01h 14m 37s)   -43.055 (-43d 03' 18\")\n\nAs observed by Konus-Wind the burst had a 20 keV-10 MeV\nfluence of ~3x10^-4 erg/cm2, and a hard\ntime-integrated spectrum with an Epeak ~2 MeV.\n\nThe K-W light curve of this GRB and IPN triangulation map can be seen\nat http://www.ioffe.rssi.ru/LEA/GRBs/GRB070207_T75644/\n\nDetailed spectral parameters will be reported later.",
  "circularId": 6089,
  "createdOn": 1171050902000,
  "email": "val@mail.ioffe.ru",
  "subject": "IPN localization of very bright long hard GRB 070207",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>",
  "eventId": "GRB 070207"
}