[vsnet-grb-info 12955] IPN Triangulation of GRB 130307A

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  14292
SUBJECT: IPN Triangulation of GRB 130307A
DATE:    13/03/12 17:05:12 GMT
FROM:    Dmitry Svinkin at Ioffe Institute  <svinkin at mail.ioffe.ru>

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

K. Hurley and J. Goldsten, on behalf of MESSENGER GRNS GRB team,

V. Connaughton, M. Briggs, C. Meegan, and V. Pelassa, 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,

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

G. Di Cocco, F. Fuschino, M. Galli, C. Labanti, and M. Marisaldi, on
behalf of the AGILE MCAL team, report:

The short-duration GRB 130307A was observed by Fermi (GBM: trigger
384318107, Pelassa, GCN Circ. 14271), Konus-Wind, INTEGRAL (SPI-ACS), 
Swift (BAT), AGILE (MCAL), and MESSENGER (GRNS), at about 10904 s UT 
(03:01:44). 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
     ---------------------------------------------
    Center:
     155.996 (10h 23m 59s) +22.998 (+22d 59' 53")
    Corners:
     154.692 (10h 18m 46s) +22.026 (+22d 01' 32")
     155.790 (10h 23m 10s) +23.534 (+23d 32' 02")
     157.288 (10h 29m 09s) +23.852 (+23d 51' 08")
     156.204 (10h 24m 49s) +22.463 (+22d 27' 46")
     ---------------------------------------------
The error box area is about 1.6  sq. deg, and its maximum dimension is
3.0 deg (the minimum one is 1.3 deg).

This box may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB130307_T10908/IPN/