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GCN Circular 16260

Subject
GRB 140508A: Mondy upper limit
Date
2014-05-13T14:17:02Z (10 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), E. Klunko (ISTP), M. Eselevich (ISTP), I. Korobtsev
(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up 
collaboration:

We observed the field of GRB 140508A (Yu et al., GCN 16224) with
AZT-33IK telescope of of Sayan observatory (Mondy) starting on May, 12 
(UT) 15:32:03. Within enhanced Swift-XRT error circle (Amarel-Rogers et 
al., GCN 16232) we do not detect the optical source reported by Singer 
et al. (GCN 16226).

Details of the photometry are the following:

date         UT start   t-T0        Exp.     Filter   UpperLimit
                        (mid, days)  (s)               (3sigma)
2014-05-12   15:32:03   4.56124     60x120   R        22.9

The photometry is based on a reference star from SDSS-DR9,
(R mag, transformation by Lupton 2005):

SDSS_id               R(Lupton)   err
J170144.75+464707.7   18.272      0.018
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