[vsnet-grb-info 19683] IPN Triangulation of GRB 170805A (short)

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  21427
SUBJECT: IPN Triangulation of GRB 170805A (short)
DATE:    17/08/08 17:20:27 GMT
FROM:    Dmitry Svinkin at Ioffe Institute  <svinkin at mail.ioffe.ru>

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,

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

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

A short-duration GRB 170805A (Ma et al., GCN Circ. 21421)
was detected by Swift (BAT), Insight-HXMT, INTEGRAL (SPI-ACS), and
Mars-Odyssey (HEND) at about 52714 s UT (14:38:34).
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:
   269.235 (17h 56m 56s) -18.322 (-18d 19' 19")
  Corners:
   269.038 (17h 56m 09s) -20.543 (-20d 32' 36")
   268.879 (17h 55m 31s) -20.576 (-20d 34' 34")
   269.536 (17h 58m 09s) -16.073 (-16d 04' 22")
   269.697 (17h 58m 47s) -16.036 (-16d 02' 11")
  ---------------------------------------------
The error box area is 2378 sq. arcmin, and its maximum
dimension is 4.6 deg (the minimum one is 8.8 arcmin).
The Sun distance was 135 deg.

This box may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB170805_T52714/IPN