{
  "version": 2,
  "subject": "GRB 241115a: PRIME near-infrared upper limits",
  "eventId": "GRB 241115A",
  "body": "J. Durbak (UMD), O. Guiffreda (UMD), A. S. Kutyrev (NASA/GSFC), E. Troja (U Rome), S. B. Cenko (NASA/GSFC)\n\nFollowing the Swift BAT (GCN 38235) and Fermi GBM (GCN 38234) detection, we observed the transient field in H-filter with PRIME ~3.5 days after Swift and Fermi detection.\n\nAt the counterpart positions reported by Swift XRT (GCN 38235) and Swift UVOT (GCN 38256), we detect no uncatalogued sources in H-band. Using nearby 2MASS stars for preliminary calibration we derive a limiting magnitude of <20.0 AB, not corrected for Galactic extinction\n\nPRIME is a 1.8m telescope with 1.56 square degree FOV (0.5 arcsec/pixel) located in Sutherland, South Africa at the South African Astronomical Observatory (SAAO) (Kutyrev et al. 2023, Yama et al. 2023, Durbak et al. 2024).\n\nWe thank the Osaka University observers at PRIME and the staff at SAAO for their support with these observations.",
  "bibcode": "2024GCN.38274....1D",
  "createdOn": 1731989037474,
  "circularId": 38274,
  "editedBy": "Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov> on behalf of Joe Durbak at UMD <gcn.joedurbak@gmail.com>",
  "format": "text/plain",
  "submitter": "Joe Durbak at UMD <gcn.joedurbak@gmail.com>",
  "submittedHow": "web",
  "editedOn": 1732024534673
}