{
  "bibcode": "2021GCN.30402....1K",
  "body": "H. Kumar (IITB), R. Norbu (IAO), V. Bhalerao (IITB), G. C. Anupama (IIA),\nS. Barway (IIA) report on behalf of the GIT team:\n\nWe observed GRB 210706A detected by Swift/BAT-GUANO (see A. Tohuvavohu et\nal. GCN #30393) with 0.7m GROWTH-India Telescope (GIT). We obtained\nmultiple 100-second images in g', r' and i' bands, interspersed with each\nother. The total exposure in each band was 1000 seconds. We did not detect\nany new source in our stacked images within the 3.2 arcsec circle, around\nthe swift XRT position centered at RA: 20h 47m 58.73s Dec: +13d 19' 01.0\"\n(GCN #30399). Also, we did not detect any new transient within the full 5\narcmin circle around the Swift/BAT-GUANO position (GCN #30393). The\nobtained upper limit follow as:\n\n-------------------------------------------------------------------\n\n JD (mid) | T_mid-T0(hrs) | Filter | Lim_mag (5-sigma) |\n\n-------------------------------------------------------------------\n\n  2459402.343657 | 11.95 |  g' | > 20.86 |\n\n  2459402.346588 | 12.02 |  r' | > 21.00 |\n\n  2459402.349518 | 12.09 |  i' | > 20.32 |\n\n-------------------------------------------------------------------\n\nThe magnitudes are calibrated against PanSTARRS (Flewelling et al., 2018)\nand not corrected for Galactic extinction.\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": 30402,
  "createdOn": 1625661594000,
  "email": "harshkosli13@gmail.com",
  "subject": "GRB 210706A: GIT optical upper limits",
  "submitter": "Harsh Kumar at Indian Inst of Tech,Bombay  <harshkosli13@gmail.com>",
  "eventId": "GRB 210706A"
}