[vsnet-grb-info 12947] IPN triangulation of GRB 130310A

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  14284
SUBJECT: IPN triangulation of GRB 130310A
DATE:    13/03/11 13:10:43 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,

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

V. Connaughton, M. Briggs, and C. Meegan, on behalf of the Fermi
GBM team,

K. Yamaoka, M. Ohno, Y. Hanabata, Y. Fukazawa, T. Takahashi, M.
Tashiro, Y. Terada, T. Murakami, and K. Makishima on behalf of the
Suzaku WAM team, and

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


The short-duration, hard-spectrum, intense GRB 130310A (Fermi/LAT 
detection: Guiriec,  Vianello, Ohno, GCN 14282; Fermi/GBM detection: 
Xiong and Chaplin, GCN 14283) has been also observed by Konus-Wind, 
Suzaku (WAM), INTEGRAL (SPI-ACS), MESSENGER (GRNS), and Mars Odyssey 
(HEND), so far, at about 72585 s UT (20:09:45).

We have triangulated it to a preliminary, 3 sigma error box whose
coordinates are:
     ---------------------------------------------
      RA(2000), deg                 Dec(2000), deg
     ---------------------------------------------
    Center:
     141.905 (09h 27m 37s) -17.431 (-17d 25' 53")
    Corners:
     141.722 (09h 26m 53s) -16.780 (-16d 46' 50")
     141.801 (09h 27m 12s) -17.435 (-17d 26' 06")
     142.093 (09h 28m 22s) -18.072 (-18d 04' 18")
     142.008 (09h 28m 02s) -17.428 (-17d 25' 40")
     ---------------------------------------------
The error box area is 465 sq. arcmin, and its maximum
dimension is 80 arcmin (the minimum one is 12 arcmin; the minimum 
annulus width is 11 arcmin).

This box can be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB130310_T72588/IPN/

The center of the LAT position (Guiriec,  Vianello, Ohno, GCN 14282) is 
0.46 deg from the box center.