{
  "body": "Dylan Dutton, Megan Dubay, Donovan Schlekat, Logan Selph, Daniel Reichart, Joshua Haislip, Vladimir Kouprianov, Daryl Janzen, Arie Verveer, John Kennewell, and Ruide Fu report on behalf of the Skynet Robotic Telescope Network at the University of North Carolina at Chapel Hill.\n\nWe observed the field of GRB 231118A with our 0.4m robotic telecope located in Meckering, Australia. The observation began at 17:19:11 UTC on Nov 18 2023, approximately 3 minutes after the trigger.\n\nWe obtained multiple expsoures in the B, V, R, and I filters. Exposure lengths were calculated using our automated exposure length scaling model.\n\nWe detected a bright object within the uncertainty radius of the Swift localization, at:\nR.A. (J2000): 00:19:19.3583\nDec. (J2000): -48:02:24.923\n\nWe report the discovery photometry below.\n\nExpLen | Filter | Mag  | Date         | UTC\n-----------------------------------------\n3.034s | R      | 14.8 | Nov 18, 2023 | 17:19:30\n\nOur images have been calibrated using stars from the APASS catalog.",
  "circularId": 35103,
  "createdOn": 1700333117698,
  "eventId": "GRB 231118A",
  "bibcode": "2023GCN.35103....1D",
  "submitter": "Dylan Dutton at UNC Chapel Hill <ddutton59@gmail.com>",
  "submittedHow": "web",
  "subject": "GRB 231118A: Skynet Optical Afterglow Discovery"
}