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GCN Circular 16023

IPN Triangulation of very intense GRB 140320D
2014-03-21T16:28:50Z (10 years ago)
Dmitry Svinkin at Ioffe Institute <>
K. Hurley and J. Goldsten, on behalf of the MESSENGER NS GRB team,

S. Golenetskii, R. Aptekar, V. Pal'shin, D. Frederiks, D. Svinkin, and 
T. Cline, on behalf of the Konus-Wind team,

A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. 
Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, and

S. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer, on
behalf of the Swift-BAT team, report:

The long-duration very intense GRB 140320D has been observed by 
Konus-Wind, INTEGRAL (SPI-ACS), Swift (BAT), and MESSENGER (GRNS), so 
far, at about 73297 s UT (20:21:37). The burst was outside the coded
field of view of the BAT.

We have triangulated it to a preliminary, 3 sigma error box whose 
coordinates are:
     RA(2000), deg                 Dec(2000), deg
      87.893 (05h 51m 34s) +85.429 (+85d 25' 46")
      98.997 (06h 35m 59s) +86.721 (+86d 43' 15")
      98.219 (06h 32m 53s) +87.023 (+87d 01' 23")
      81.849 (05h 27m 24s) +84.026 (+84d 01' 35")
      83.033 (05h 32m 08s) +83.741 (+83d 44' 28")
The error box area is 0.635 sq. deg, and its maximum dimension is 3.474
deg (the minimum one is 0.196 deg).

This box may be improved.

A triangulation map is posted at

The time history and spectrum will be given in a forthcoming GCN Circular.
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