GCN Circular 1445
Subject
GRB 020625, optical observations
Date
2002-07-05T10:29:16Z (22 years ago)
From
Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>
GRB 020625, optical observations
---------------------------------
Alberto Castro-Tirado (IAA-CSIC, Granada)
Javier M�ndez (ING Group, La Palma)
Pilar Ruiz Lapuente (Univ. de Barcelona)
Javier Gorosabel (IAA-CSIC, Granada)
Jos� Mar�a Castro Cer�n (ROA, San Fernando)
report:
"We have obtained several images in the Sloan i'-band
filter following the detection by HETE of GRB 020625
(Ricker et al. GCN 1442) with the 2.5-m Isaac Newton
Telescope (+WFC) at La Palma. The observations started
16.3 hr after the event and cover 90 % of the HETE
error box. Details follow:
Date (UT time) Frames Seeing Limiting Mag
-----------------------------------------------------------
June 26, 03:42-04:22 4 x 600-s 1".8 20.5
June 27, 03:39-03:49 1 x 600-s 0".9 21.0
June 28, 23:47-00:10 2 x 600-s 1".2 21.0
No sources varying by more than 0.3 mag were seen
within the fraction of the HETE error box imaged at the INT.
This complements the upper limits given by Burnashev et al.
(GCN 1444). Further observations are planned."