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TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2393
SUBJECT: GRB030921 triangulation (annulus)
DATE:    03/09/22 13:42:10 GMT
FROM:    Dmitry Frederiks at Ioffe Institute  <fred@mail.ioffe.ru>

S. Golenetskii, E. Mazets, V. Pal'shin, and D. Frederiks on behalf
of Konus-Wind and Helicon/Coronas-F teams,

T. Cline, on behalf of the Konus GRB team,

GRB030921 was detected by Konus-Wind at 08:38:23.283 UT
and Helicon-Coronas-F at 08:38:22.605 UT. It has a duration of ~16 sec.

We have triangulated it to a preliminary annulus centered at
RA(2000) = 261.175 deg,
Decl(2000) = -18.929 deg,
Radius = 78.4 +/- 1.1 degrees (3 sigma ).


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TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2399
SUBJECT: IPN triangulation of GRB030921 (large error box)
DATE:    03/09/24 23:37:08 GMT
FROM:    Kevin Hurley at UCBerkeley/SSL  <khurley@sunspot.ssl.berkeley.edu>

K. Hurley and T. Cline, on behalf of the Ulysses, Konus, and Mars
Odyssey GRB teams,

I. Mitrofanov, S. Charyshnikov, V. Grinkov, A. Kozyrev, M. Litvak, and
A. Sanin, on behalf of the HEND-Odyssey GRB team,

W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on
behalf of the GRS/Odyssey GRB team, and

E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team,
report:

Ulysses, Mars Odyssey-HEND, and Konus-Wind  observed this GRB at 31103
seconds (GCN 2393).  As observed by Ulysses, it had a duration of
approximately  16 seconds, a 25-100 keV fluence of approximately
3E-06 erg/cm2, and a peak flux of approximately  5E-07 erg/cm2 s
over 1.00 second.

We have triangulated it to a preliminary, 3 sigma error box whose
approximate area is 27000 sq. arcmin. and whose coordinates are:

                       RA(2000)                              DEC(2000)
 ERROR BOX CENTER:    22 h 26 m 55.72 s                   5 o 44 ' 14.82 " 
 ERROR BOX CORNER 1:  22 h 27 m 53.21 s                   5 o 53 ' 12.52 "
 ERROR BOX CORNER 2:  22 h 04 m 09.16 s                   3 o 10 ' 28.20 "
 ERROR BOX CORNER 3:  22 h 47 m 58.35 s                   6 o 52 ' 53.32 "
 ERROR BOX CORNER 4:  22 h 25 m 58.32 s                   5 o 35 ' 07.34 "

The Konus-Helicon annulus given in GCN 2393 intersects this error
box and reduces its area to ~1100 sq. arcmin.  The combined error box
has coordinates:

ERROR BOX CENTER:     22 h 27 m 14.28 s                   5 o 44 ' 20.71 "
ERROR BOX CORNER 1:   22 h 31 m 31.81 s                   6 o 01 ' 30.80 "
ERROR BOX CORNER 2:   22 h 22 m 56.53 s                   5 o 27 ' 16.99 "
ERROR BOX CORNER 3:   22 h 31 m 22.34 s                   6 o 07 ' 47.14 "
ERROR BOX CORNER 4:   22 h 23 m 06.43 s                   5 o 20 ' 47.90 "

This error box may be improved slightly.

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TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2487
SUBJECT: GRB030921 triangulation (annulus)
DATE:    03/12/15 19:33:57 GMT
FROM:    Dmitry Frederiks at Ioffe Institute  <fred@mail.ioffe.ru>

S. Golenetskii, E. Mazets, V. Pal'shin, and D. Frederiks on behalf
of Konus-Wind and Helicon/Coronas-F teams, and
T. Cline, on behalf of the Konus GRB team,

Very bright short GRB031214 was detected by Konus-Wind at 36655.479 UT
(10:10:55.479) and by Helicon-Coronas-F at 36650.711 UT (10:10:50.711).
It has a duration of ~0.3 sec.

We have triangulated it to a preliminary annulus centered at
RA(2000) = 264.185 deg,
Decl(2000) = -19.141 deg,
Radius = 19.608 +/- 0.084 degrees (3 sigma ).