[vsnet-grb-info 20691] GRB 180614A: AbAO optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  22789
SUBJECT: GRB 180614A: AbAO optical observations
DATE:    18/06/16 15:19:10 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

E. Mazaeva (IKI),  A. Pozanenko (IKI),   R. Inasaridze (AbAO),  V. 
Ayvazian  (AbAO),  O. Kvaratskhelia (AbAO), G. Kapanadze (AbAO),  A. 
Volnova  (IKI), I. Molotov (KIAM), report on behalf of larger GRB 
follow-up collaboration:

We observed the field of GRB 180614A  (Gropp et al., GCN 22780) with 
AS-32 (0.7m) telescope of Abastumani Observatory starting on June 14 
(UT) 21:33:14.   We do not detect any object within enhanced XRT 
position (Evans et al., GCN 22781). Preliminary photometry of the field 
is following.

Date        UT start   t-T0      Filter Exp.   OT    Err. UL
                      (mid, days)        (s)

2018-06-14  21:33:14   0.12582   CR     51*60  n/d   n/d  21.5

The photometry is based on nearby USNO-B1.0 stars (R2 magnitude)
USNO-B.1_id R2
1369-0005473 17.71
1369-0005482 16.67
1369-0005487 16.97
1369-0005592 16.51