{
  "bibcode": "2025GCN.38790....1K",
  "eventId": "GRB 250101A",
  "circularId": 38790,
  "submitter": "Toktarkhan Komesh at Nazarbayev University <toktarkhan.komesh@nu.edu.kz>",
  "body": "T. Komesh (NU), Z. Maksut (NU), Z. Abdullayev (NU), B. Grossan (UCB, NU), D. Berdikhan (NU), M. Krugov (FAI) and E. Abdikamalov (NU) report on behalf of the Energetic Cosmos Laboratory:\n\nThe Nazarbayev University Transient Telescope at Assy-Turgen Astrophysical Observatory (NUTTelA-TAO) observed the field of GRB 250101A at 14:00:32 UT on 2025-01-02, 24.8 hours after the BAT trigger. Observations were made in clear conditions. No source consistent with the XRT (P.A. Evans et al., GCN 38708; T. Komesh et al., GCN 38777) was detected. We report the following results:\n\nt-t0(h) UL g' \tUL r' \texposure_time (s)\n-----------------------------------------\n24.8 \t21.0 \t20.8 \t300\n\nt is the middle time, t0 is the BAT trigger time, t-t0 is given in hours. UL gives the 5 sigma upper limit sensitivity in magnitudes, for images of the given exposure time. Calibration was done with 4 Pan-STARRS catalog stars on our images. No color or other corrections were applied to the values above.\n\n-----------------------------------------------\nNU = Nazarbayev University, Astana, Kazakhstan\nUCB = University of California, Berkeley, USA\nFAI = Fesenkov Astrophysical Institute, Kazakhstan\n\nThis research has been funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. AP26103591). The NUTTelA-TAO Team acknowledges the support of the staff of the Assy-Turgen Astrophysical Observatory, Almaty, Kazakhstan, and the Fesenkov Astrophysical Institute, Almaty, Kazkhstan.\n",
  "submittedHow": "web",
  "format": "text/plain",
  "subject": "GRB 250101A: NUTTelA-TAO / BSTI Optical Limits",
  "createdOn": 1735906594404
}