{
  "bibcode": "2018GCN.23284....1M",
  "body": "Daniele B. Malesani (DAWN/NBI and DARK/NBI) and Ana Sagues (NOT) report \non behalf of a larger collaboration:\n\nWe observed the field of GRB 180930A (Tohuvavohu et al., GCN 23279) with \nthe Nordic Optical Telescope (NOT) equipped with the AlFOSC camera. \nObservations were carried out as soon as the field became visible from \nLa Palma, starting on 2018 Oct 1.153 UT (14.95 hr after the GRB). A \ntotal exposure of 1500 s in each of the SDSS r and z filters was secured.\n\nInside the UVOT-enhanced GRB position (Osborne et al., GCN 23282), we \ndetect no sources down to r = 23.5, z = 22.8 (both AB, calibrated \nagainst nearby stars from the Pan-STARRS survey).",
  "circularId": 23284,
  "createdOn": 1538380835000,
  "email": "malesani@dark-cosmology.dk",
  "subject": "GRB 180930A: NOT optical upper limits",
  "submitter": "Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst  <malesani@dark-cosmology.dk>",
  "eventId": "GRB 180930A"
}