TITLE:   GCN CIRCULAR
NUMBER:  22117
SUBJECT: IPN Triangulation of GRB 171108A (short)
DATE:    17/11/10 18:40:14 GMT
FROM:    Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>

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

K. Hurley, on behalf of the IPN,

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

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

The short-duration GRB 171108A (Hamburg and Meegan, GCN Circ. 22112) was 
detected by Fermi (GBM trigger 531848691), Konus-Wind, and Swift (BAT) 
at about 56686 s UT (15:44:46).
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:
   109.952 (07h 19m 48s) +29.091 (+29d 05' 28")
  Corners:
   112.518 (07h 30m 04s) +45.785 (+45d 47' 05")
   107.816 (07h 11m 16s) +12.385 (+12d 23' 05")
   107.666 (07h 10m 40s) +12.387 (+12d 23' 12")
   112.309 (07h 29m 14s) +45.789 (+45d 47' 21")
  ---------------------------------------------
The error box area is 4.9 sq. deg, and its maximum
dimension is 33.6 deg (the minimum one is 8.8 arcmin).
The Sun distance was 116 deg.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB171108_T56686/IPN

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