{
  "bibcode": "2021GCN.29656....1K",
  "body": "H. Kumar(IITB), K. Sharma (IITB), U. Stanzin (IAO), A. Dutta(IIA), V.\nBhalerao(IITB), G. C. Anupama(IIA), S. Barway(IIA) report on behalf of the\nGIT team:\n\nWe observed GRB 210226A detected by Swift-BAT (A. P. Beardmore et al., GCN\n29568) with 0.7m GROWTH-India Telescope (GIT). We obtained 10 exposures of\n300 sec each in the r' filter. We did not detect any new source in our\nstacked image within the 1.5 arcsec circle around R.A.= 08h 16m 27.67s,\nDEC.=+57d 35' 02.2\". The obtained upper limit follows as:\n\n-------------------------------------------------------------------\n\n JD (mid) | T_mid-T0(hrs) | Exposure (sec) | Filter | Lim_mag (5-sigma) |\n\n-------------------------------------------------------------------\n\n2459272.1074 | 9.84 | 3000 (stacked) | r' | > 20.34 |\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": 29656,
  "createdOn": 1615807983000,
  "email": "harshkosli13@gmail.com",
  "subject": "GRB 210226A: GIT optical upper limit",
  "submitter": "Harsh Kumar at Indian Inst of Tech,Bombay  <harshkosli13@gmail.com>",
  "eventId": "GRB 210226A"
}