TITLE:   GCN CIRCULAR
NUMBER:  16440
SUBJECT: GRB 140620A / iPTF14cva: Konkoly optical observations
DATE:    14/06/22 23:56:29 GMT
FROM:    Janos Kelemen at Konkoly Obs/Hungary  <kelemen@konkoly.hu>

J. Kelemen (kelemen at konkoly.hu) on behalf of the GRB OT observing program
at the Konkoly Observatory.

Starting on the evening of 21/06/2014 UT we observed the field of GRB 140620A
(Fermi GBM reported trigger 424934131 at 2014-06-20 05:15:28.02 UT) 
150898 sec. after the burst, using a 60/90/180 cm Schmidt telescope 
located at the Mountain Station of the Konkoly Observatory . On the 
coadded R images (total exp.time 900 sec) we easily detected the OT at the
position reported by M. M. Kasliwal et al. (GCN 16425)

Based on the nearby UCAC-4 stars we provide 21.9 +/- 0.15 magnitude in the R
band for the OT. 

time from GRB.    exp    filter     Mag.      
------------------------------------------------ 
 150898 s.       900 s     R       21.9 +/-0.15 
------------------------------------------------