{
  "bibcode": "2021GCN.30336....1K",
  "body": "H. Kumar(IITB), J. Stanzin (IAO), V. Bhalerao(IITB), G. C. Anupama(IIA), S.\nBarway(IIA) report on behalf of the GIT team:\n\nWe observed GRB 210626A detected by Fermi GBM (GCN #30323) with 0.7 m\nGROWTH-India Telescope (GIT). The GRB was also detected by Swift/BAT-GUANO (GCN\n#30325) and later on, Swift-XRT detected X-ray afterglow candidate (GCN\n#30329). We obtained exposures in the r' filter. We did not detect any new\nsource in our stacked image within the 5.7 arcsec circle, around RA:\n14:46:05.83, Dec: -01:09:22.5 (GCN #30329). Further, we did not find any\nnew source within the 5 arcmin region identified by BAT localisation\n(GCN #30325).\nThe obtained upper limit follow as:\n\n-------------------------------------------------------------------------\n\n JD (mid) | T_mid-T0(hrs) | Exposure (sec) | Filter | Lim_mag (5-sigma) |\n\n-------------------------------------------------------------------------\n\n 2459392.2353 | 9.37 | 2 x 300 (stacked) | r' | > 20.5 |\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": 30336,
  "createdOn": 1624870395000,
  "email": "harshkosli13@gmail.com",
  "subject": "GRB 210626A: GIT optical upper limit",
  "submitter": "Harsh Kumar at Indian Inst of Tech,Bombay  <harshkosli13@gmail.com>",
  "eventId": "GRB 210626A"
}