GCN Circular 15976
Subject
GRB 140311A: Montarrenti Observatory optical upper limit
Event
Date
2014-03-12T22:20:45Z (12 years ago)
From
Simone Leonini at Monarrenti Obs <s.leonini@iol.it>
S. Leonini, P. Rosi, M. Conti, G. Guerrini and L.M. Tinjaca Ramirez
(Montarrenti Observatory, Siena, Italy) report:
We observed the field of GRB140311A (Swift trigger 591390, Racusin et al., GCN
Circ. 15944) with the automatic 0.53m RC telescope + U47 detector at
Montarrenti Observatory (Siena, Italy, IAU code C88).
The observations were started at 2014-03-12 00:20:19 UT (approximately 3 hours
post-burst) stacking 5 unfiltered CCD exposures of 60s each.
We have not found optical transient within the error-box given by Swift.
Mag. upper limit R = 20.02+/-0.16
Magnitudes were obtained using Astrometrica software using USNO-B1 catalogue
and are not corrected for galactic extinction.
The message may be cited.