{
  "bibcode": "2020GCN.27759....1S",
  "body": "R. Strausbaugh (U. of the Virgin Islands), A. Cucchiara (U. of the Virgin Islands/College of Marin) report on behalf of a larger collaboration:\n\nWe observed Swift GRB 200519A (Sbarufatti et al., GCN 27756) with the LCO 1-m Sinistro instrument at the Siding Spring Observatory Australia site, on May 9, from 12:39 to 13:02 UT (corresponding to 1.05 to 1.38 hours from the GRB trigger time) with the Bessel R and I filters.\n\nWe performed a series of 5x120s exposures in R and I. We detect an optical source in stacked images at the UVOT afterglow candidate position position.  Using the USNO-B.1 catalog as reference, we calculate the following magnitudes:\n\nR = 17.07 +/- 0.02\n\nI = 16.69 +/- 0.02\n\nThese magnitudes are not corrected for galactic extinction.\n\nR.S. is funded by NSF AST grant #1831682",
  "circularId": 27759,
  "createdOn": 1589907882000,
  "email": "robert.strausbaugh@uvi.edu",
  "subject": "GRB 200519A: LCO Optical Afterglow Detection",
  "submitter": "Robert Strausbaugh at U. of the Virgin Islands  <robert.strausbaugh@uvi.edu>",
  "eventId": "GRB 200519A"
}