TITLE:   GCN CIRCULAR
NUMBER:  31773
SUBJECT: GRB 220319A: Mondy optical uper limit
DATE:    22/03/20 09:57:51 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>

S. Belkin (IKI, HSE), A. Pozanenko (IKI), E. Klunko (ISTP), N. Pankov 
(HSE) report on behalf of GRB IKI FuN:

We observed the field of GRB 220319A (Page et al., GCN 31769) with 
AZT-33 telescope of Mondy observatory starting on Mar. 19 (UT) 18:25:41. 
We do not detect any optical counterpart within the Swift/XRT error box 
(Page et al., GCN 31769; Goad et al., GCN 31771). Preliminary photometry 
of the field  is following

Date       UT start t-T0    Filter     Exp.   OT   Err  UL(3sigma)

2022-03-19 18:25:41 0.04523  R         40*60  n/d  n/d  21.7

The photometry is based on the nearby SDSS-DR12 stars R (Lupton
transformations)
R.A. Dec R
14:33:05.13264 +61:18:55.9584 16.1498
14:32:35.99328 +61:17:16.0764 16.5417