GRB 020715
GCN Circular 1456
Subject
IPN triangulation of GRB020715 (=GRB150702)
Date
2002-07-17T18:06:42Z (23 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley and T. Cline, on behalf of the Ulysses, Mars Odyssey,
and Konus-Wind GRB teams,
D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas,
and A. Zehnder, on behalf of the RHESSI GRB team,
I. Mitrofanov, D. Anfimov, 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:
This burst (GCN 1454, the subject should have read GRB020715) was also
observed by RHESSI. Triangulation indicates that the first error box
is the correct one:
RA(2000) DEC(2000)
ERROR BOX CENTER: 13 h 50 m 12.66 s 61 o 50 ' 43.79 "
ERROR BOX CORNER 1: 13 h 50 m 25.94 s 62 o 13 ' 54.09 "
ERROR BOX CORNER 2: 13 h 50 m 25.32 s 61 o 29 ' 58.72 "
ERROR BOX CORNER 3: 13 h 49 m 57.94 s 62 o 10 ' 25.39 "
ERROR BOX CORNER 4: 13 h 49 m 57.26 s 61 o 25 ' 42.46 "
GCN Circular 1467
Subject
GRB 020715, optical observations
Date
2002-08-12T12:02:08Z (23 years ago)
Edited On
2024-11-18T10:04:15Z (6 months ago)
From
Javier Gorosabel at LAEFF-INTA, Madrid <jgu@laeff.esa.es>
Edited By
Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>
J. Gorosabel (IAA-CSIC), J.M. Castro Cerón (ROA),
A.J. Castro Tirado (IAA-CSIC), A. Guijarro (CAHA),
F. Hoyo (CAHA), S. Pedraz (CAHA) and C. Wolf (Oxford Univ.),
report:
We have performed Ic-band observations of the central part
(coverage 40%) of the GRB 020715 (GCN 1456) error box with
the 2.2m Telescope of Calar Alto (+BUSCA) as follows:
========================================================
Date Seeing Exp.Time Lim.Mag. Time Since
(2002 UT) (") (s) (3 sigma) GRB (days)
--------------------------------------------------------
17.945-18.007/07 1.2 5x900 24.4 2.2
18.872-18.947/07 1.0 6x900 24.7 3.1
05.864-05.931/08 1.5 6x900 24.3 21.1
--------------------------------------------------------
Marginal variability (< 0.2 mag) is detected for 3 sources.
None of these objects shows flux variability consistent with
a monotonic decay, as expected for an optical afterglow
2.2-21.1 days after the gamma ray event.