GRB 240410A

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

A. Ridnaia, D. Frederiks, D. Svinkin, A. Lysenko,
and T. Cline on behalf of the Konus-Wind team,

E. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,

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

and

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

The long-duration GRB 240410A
was detected by INTEGRAL (SPI-ACS), Swift (BAT), Konus-Wind,
and Mars-Odyssey (HEND) at about 73409 s UT (20:23:29).
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:
  109.832 (07h 19m 20s) +30.179 (+30d 10' 43")
 Corners:
  110.414 (07h 21m 39s) +32.327 (+32d 19' 37")
  110.411 (07h 21m 39s) +32.546 (+32d 32' 46")
  109.265 (07h 17m 04s) +27.655 (+27d 39' 19")
  109.268 (07h 17m 04s) +27.350 (+27d 21' 01")
 ---------------------------------------------
The error box area is 957 sq. arcmin, and its maximum
dimension is 5.3 deg (the minimum one is 3 arcmin).
The Sun distance was 86 deg.

This localization may be improved.

A triangulation map and HEALPix FITS file are posted at
http://www.ioffe.ru/LEA/GRBs/GRB240410_T73409/IPN/

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