[vsnet-grb-info 23213] IPN triangulation of GRB 190810A (short)

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  25312
SUBJECT: IPN triangulation of GRB 190810A (short)
DATE:    19/08/11 19:27:19 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,

A. Goldstein, M. S. Briggs, and C. Wilson-Hodge
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, H. Krimm, and D. Palmer,
on behalf of the Swift-BAT team, and

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

The short-duration GRB 190810A (The Fermi-GBM team, GCN 25310)
was detected by Fermi (GBM trigger 587146326), INTEGRAL (SPI-ACS),
Mars-Odyssey (HEND), Konus-Wind, and Swift (BAT),
at about 58321 s UT (16:12:01).
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:
   192.049 (12h 48m 12s) -28.504 (-28d 30' 16")
  Corners:
   190.529 (12h 42m 07s) -30.184 (-30d 11' 02")
   193.578 (12h 54m 19s) -26.862 (-26d 51' 42")
   193.486 (12h 53m 57s) -26.776 (-26d 46' 34")
   190.437 (12h 41m 45s) -30.097 (-30d 05' 48")
  ---------------------------------------------
The error box area is about 1804 sq. arcmin, and its maximum
dimension is 4.28 deg (the minimum one is 7.0 arcmin).
The Sun distance was 66 deg.

This box may be improved.

The IPN localization is consistent with, but reduces the area of, the 
Fermi-GBM one.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB190810_T58321/IPN

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