TITLE:   GCN CIRCULAR
NUMBER:  28274
SUBJECT: IPN triangulation of GRB 200815A (short)
DATE:    20/08/20 18:29:49 GMT
FROM:    Anna Ridnaia at Ioffe Institute  <ridnaia@mail.ioffe.ru>

K. Hurley, on behalf of the IPN,

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

D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, A. Ridnaia,
and T. Cline on behalf of the Konus-Wind 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 200815A
(CALET-GBM detection: Kobayashi et al., GCN Circ. 28255)
has been detected by Konus-Wind, INTEGRAL (SPI-ACS),
Mars-Odyssey (HEND), and Swift (BAT), so far,
at about 75764 s UT (21:02:44).
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:
   356.686 (23h 46m 45s) -27.798 (-27d 47' 54")
  Corners:
   356.902 (23h 47m 36s) -27.811 (-27d 48' 41")
   356.836 (23h 47m 21s) -28.066 (-28d 03' 58")
   356.471 (23h 45m 53s) -27.785 (-27d 47' 05")
   356.536 (23h 46m 09s) -27.528 (-27d 31' 39")
  ---------------------------------------------
The error box area is 357 sq. arcmin, and its maximum
dimension is 36 arcmin (the minimum one is 7 arcmin).
The Sun distance was 148 deg.

This box may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB200815_T75768/IPN

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