GCN Circular 24729

Brajesh Kumar (IIA), Avinash Singh (IIA), G. C. Anupama (IIA), D. K. 
Sahu (IIA) and S. B. Pandey (ARIES)

We observed the field of GRB 190530A (Fermi GBM team, GCN 24676
Not found
 
 
, 
Biltzinger et al., GCN 24677
Not found
 
 
; Lucarelli et al.,GCN 24678
Not found
 
 
, Longo et al., 
GCN 24679
Not found
 
 
; Verecchia et al., GCN 24683
Not found
 
 
) with the 2-m Himalayan Chandra 
Telescope (HCT) located at the Indian Astronomical Observatory, Hanle, 
India. The observations started on 2019-06-02 14:50:43 UT i.e. around 
3.19 days from Fermi GBM trigger (GCN 24676
Not found
 
 
).

The optical afterglow (Lipunov et al., GCN 24680
Not found
 
 
; Kann et al., GCN 
24684
Not found
 
 
; Heintz et al., GCN 24686
Not found
 
 
; Izzo et al., GCN 24687
Not found
 
 
; Xin et al., GCN 
24688
Not found
 
 
; Watson et al., GCN 24690
Not found
 
 
; Lipunov et al., GCN 24693
Not found
 
 
; Xin et al., 
GCN 24697
Not found
 
 
; Belkin et al., GCN 24698
Not found
 
 
; Kann et al., GCN 24700
Not found
 
 
; Siegel, GCN 
24703
Not found
 
 
; Moskvitin and Uklein, GCN 24708
Not found
 
 
; Vinko et al., GCN 24709
Not found
 
 
; Belkin 
et al., GCN 24712
Not found
 
 
) is detectable in our stacked image taken in Bessell 
R-band with a total integration time of 15 min. The preliminary 
magnitude of the OT is estimated as 21.3 +/- 0.3 mag.

These magnitudes were calibrated using the field stars from the 
USNO-B1.0 catalogue.

We thank the observing staff at IAO and CREST for helping with the 
observations.