[vsnet-grb-info 26581] GRB 201015A: GROWTH-India Telescope (GIT) upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28681
SUBJECT: GRB 201015A: GROWTH-India Telescope (GIT) upper limit
DATE:    20/10/18 19:03:03 GMT
FROM:    Harsh Kumar at Indian Inst of Tech,Bombay  <harshkosli13 at gmail.com>

H. Kumar (IITB), U. Stanzin(IAO), V. Bhalerao (IITB), G. C. Anupama (IIA),
S. Barway (IIA) report on behalf of the GROWTH-India collaboration:

We observed GRB 201015A reported by Swift-BAT (V. D'Elia et al., GCN
28632;  also see: V. Lipunov et al., GCN 28633; J.A. Kennea et al., GCN
28635; D. B. Malesani et al., GCN 28637; K. Ackley et al., GCN 28639; Y.-D.
Hu et al., GCN 28645; P.A. Evans et al., GCN 28647; A. de Ugarte Postigo et
al., GCN 28649; Z.P. Zhu et al., GCN 28653; S. Belkin et al., GCN 28656; C.
B. Markwardt et al., GCN 28658; A. D'Ai et al., GCN 28660; L. Izzo et al.,
GCN 28661; F. E. Marshall et al., GCN 28662; C. Fletcher et al., GCN
28663;  Martin Jelinek and Jan Strobl et al., GCN 28664; P. Minaev et al.,
GCN 28668; S. Belkin et al., GCN 28673; B. Grossan et al., GCN 28674; J.
Rastinejad et al., GCN 28676;  Z.P. Zhu et al., GCN 28677, H. Kumar et al.,
GCN 28680) with 0.7m GROWTH-India Telescope (GIT). The field was observed
in the SDSS r’ filter starting at 2020-10-16T20:21:44.41 UT i.e. ~ 21.5 hrs
after the event detection by Swift-BAT. We obtained 10 exposures of 300 sec
each.

We did not find any source in the stacked image up to r’ > 20.97 mag (5-sigma)
within the uncertainty region, calibrated against PanSTARRs PS1 data
release (Flewelling et al., 2018).

The GROWTH India Telescope (GIT) is a 70-cm telescope with a 0.7-degree
field of view, set up by the Indian Institute of Astrophysics and the
Indian Institute of Technology Bombay with support from the Indo-US Science
and Technology Forum (IUSSTF) and the Science and Engineering Research
Board (SERB) of the Department of Science and Technology (DST), Government
of India (https://sites.google.com/view/growthindia/). It is located at the
Indian Astronomical Observatory (Hanle), operated by the Indian Institute
of Astrophysics (IIA).