[vsnet-grb-info 15516] Refined IPN Triangulation of GRB 140906C

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  16805
SUBJECT: Refined IPN Triangulation of GRB 140906C
DATE:    14/09/09 12:14:15 GMT
FROM:    Valentin Pal'shin at Ioffe Inst  <val at mail.ioffe.ru>

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

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

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

J. Goldsten, on behalf of the MESSENGER NS GRB team,

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

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

D. M. Smith, on behalf of the RHESSI GRB team, report:

The short-duration, hard spectrum GRB 140906Ñ (Golenetskii et al., GCN 
16801) was also observed by RHESSI and Odyssey. Using Odyssey data 
reduces the size of the previous error box by about a factor of 6:
  ---------------------------------------------
   RA(2000), deg                 Dec(2000), deg
  ---------------------------------------------
  Center:
   314.961 (20h 59m 51s)  +1.939 ( +1d 56' 21")
  Corners:
   315.057 (21h 00m 14s)  +1.949 ( +1d 56' 57")
   314.869 (20h 59m 29s)  +2.439 ( +2d 26' 22")
   314.866 (20h 59m 28s)  +1.929 ( +1d 55' 45")
   315.057 (21h 00m 14s)  +1.428 ( +1d 25' 41")
  ---------------------------------------------
The error box area is 355 sq. arcmin, and its maximum
dimension is 1.0 deg (the minimum one is 11 arcmin).

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB140906_T85872/IPN/

Some further improvement in this error box is possible.