{
  "bibcode": "2020GCN.28450....1K",
  "body": "H. Kumar (IITB), K. Sharma(IITB), U. Stanzin (IAO), V. Bhalerao(IITB), G.\nC. Anupama(IIA), S. Barway(IIA), report on behalf of the GROWTH-India\ncollaboration:\n\nWe observed GRB 200917A reported by Swift-BAT (E. Sonbas et al., GCN 28435,\nM.R. Goad et al., GCN 28436) with 0.7m GROWTH-India Telescope (GIT). The\nfield was observed in the SDSS r��� filter starting at 2020-09-17T14:15:12.96 UT\ni.e. ~10.37 hrs after the event detection by Swift-BAT. We obtained 6\nexposures of 300 sec each, at an airmass of ~2.5. We did not find any\nsource in the stacked image within the uncertainty region of 1.9 arcsec\naround the Swift-XRT position of RA(J2000): 15h 42m 53.84s, Dec(J2000):\n-04d 42' 02.1\" (GCN  28436). We obtained an upper limit of r > 20.23\nmag (5-sigma),\ncalibrated against PanSTARRs PS1 data release (Flewelling et al., 2018).\n\nThe GROWTH India Telescope (GIT) is a 70-cm telescope with a 0.7-degree\nfield of view, set up by the Indian Institute of Astrophysics and the\nIndian Institute of Technology Bombay with support from the Indo-US Science\nand Technology Forum (IUSSTF) and the Science and Engineering Research\nBoard (SERB) of the Department of Science and Technology (DST), Government\nof India (https://sites.google.com/view/growthindia/). It is located at the\nIndian Astronomical Observatory (Hanle), operated by the Indian Institute\nof Astrophysics (IIA).",
  "circularId": 28450,
  "createdOn": 1600401207000,
  "email": "harshkosli13@gmail.com",
  "subject": "GRB 200917A: GROWTH-India Telescope optical upper limit.",
  "submitter": "Harsh Kumar at Indian Inst of Tech,Bombay  <harshkosli13@gmail.com>",
  "eventId": "GRB 200917A"
}