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GCN Circular 22349

IPN Triangulation of GRB 180113C
2018-01-16T05:35:16Z (6 years ago)
Anna Kozlova at Ioffe Institute <>
K. Hurley, on behalf of the IPN,

I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin,
on behalf of the HEND-Odyssey GRB team,

A. Kozlova, S. Golenetskii, R. Aptekar, D. Frederiks, D.Svinkin,
and T. Cline on behalf of the Konus-Wind team,

V. Connaughton, M. S. Briggs, C. Meegan, V. Pelassa,
and A. Goldstein, on behalf of the Fermi GBM 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

W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr,
on behalf of the GRS-Odyssey GRB team, report:

The long-duration GRB 180113C (Fermi GBM detection: Veres et al.,
GCN 22334) was detected by Fermi(GBM), Konus-Wind, INTEGRAL(SPI-ACS),
Mars-Odyssey (HEND), and Swift(BAT) at about 36125 s UT (10:02:05).
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
   175.300 (11h 41m 12s) -63.261 (-63d 15' 40")
   173.892 (11h 35m 34s) -62.126 (-62d 07' 33")
   176.415 (11h 45m 40s) -64.502 (-64d 30' 07")
   176.856 (11h 47m 26s) -64.371 (-64d 22' 16")
   174.311 (11h 37m 15s) -62.002 (-62d 00' 07")
The error box area is 2174 sq. arcmin, and its maximum
dimension is 2.67 deg (the minimum one is 13.8 arcmin).
The Sun distance was 82 deg.

This box may be improved.

A triangulation map is posted at

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