[vsnet-grb-info 24850] IPN triangulation of GRB 200130B

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26949
SUBJECT: IPN triangulation of GRB 200130B
DATE:    20/01/31 12:15:53 GMT
FROM:    Dmitry Svinkin at Ioffe Institute  <svinkin at 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. 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 long-duration GRB 200130B
(Fermi-GBM detection: The Fermi GBM team, GCN Circ. 26944;
BALROG localization: Kunzweiler et al., GCN Circ. 26945)
was detected by Fermi (GBM trigger 602071201), Konus-Wind,
INTEGRAL (SPI-ACS), Mars-Odyssey (HEND), and Swift (BAT),
at about 35997 s UT (09:59:57).
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:
   134.742 (08h 58m 58s) -49.627 (-49d 37' 38")
  Corners:
   133.618 (08h 54m 28s) -50.349 (-50d 20' 55")
   134.000 (08h 56m 00s) -50.392 (-50d 23' 31")
   135.836 (09h 03m 21s) -48.893 (-48d 53' 34")
   135.462 (09h 01m 51s) -48.857 (-48d 51' 26")
  ---------------------------------------------
The error box area is 1487 sq. arcmin, and its maximum
dimension is 2.0 deg (the minimum one is 13 arcmin).
The Sun distance was 112 deg.

This box may be improved.

The IPN localization is consistent with, but reduces the area of, the 
Fermi-GBM final position (GCN Circ. 26944).

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB200130_T35999/IPN

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