{
  "bibcode": "2020GCN.29030....1K",
  "body": "Amit Kumar (ARIES), Rahul Gupta (ARIES), Raya Dastidar (ARIES), Dimple\n(ARIES), Ankur Ghosh (ARIES), Sapna Mishra (ARIES), Amar Aryan (ARIES),\nShashi B. Pandey (ARIES), and Kuntal Misra (ARIES) report:\n\nWe observed the field of Swift discovered GRB 201203A (Dichiara et al., GCN\n28985, D'Elia et al., GCN 28990) with the 1.3m Devasthal Fast Optical\nTelescope (DFOT) at Devasthal observatory of Aryabhatta Research Institute\nof Observational Sciences (ARIES), India. We observed a series of images\n~7.774 hours after the burst in both R and I (300sx6 in each) filters\n(Johnson-Cousins) covering Swift UVOT position (Sakamoto et al., GCN\n28995). Preliminary photometry on the stacked images was performed and\ncalibrated against USNO-B1 catalog stars. We do not detect any OT candidate\n(Jelinek et al., GCN 28986, Watson et al., GCN 28987, Zheng et al., 28988,\nNiwano et al., GCN 28992, Kumar et al. 28993) within the enhanced XRT\nposition. The upper limits in the stacked images are the following:\n\nDATE       UT (start)  Filter Exposure(sec) Frames    Upper limit (mag)\n2020-12-03 14:38:54    R      300           6        21.4\n2020-12-03 15:11:18    I        300           6        21.2\n\nThis circular may be cited.",
  "circularId": 29030,
  "createdOn": 1607778179000,
  "email": "amitkundu515@gmail.com",
  "subject": "GRB 201203A: 1.3m DFOT, optical upper limits",
  "submitter": "Amit Kumar at ARIES, India  <amitkundu515@gmail.com>",
  "eventId": "GRB 201203A"
}