{
  "bibcode": "2019GCN.26324....1S",
  "body": "P. Schady (Univ. of Bath) reports:\n\nI would like to correct a mistake in the GROND g'r'i'z' upper limits reported in Schady et al. (GCN #25959). The reported afterglow position (Osborne et al., GCN #25950; Lipunov et al., GCN #25944) lay at the edge of the g'r'i'z' field of view, where the exposure coverage is not complete. Taking into account the exposure map reduces the optical band 3 sigma upper limits reported in GCN #25959 by around 0.5 mag. The correct 3 sigma upper limits (AB system) are as follows:\n\ng� > 23.3\nr� > 23.7\ni� > 23.1\nz� > 22.7\n\nI would like to thank Jochen Greiner for bringing this mistake to my attention.",
  "circularId": 26324,
  "createdOn": 1575326939000,
  "email": "p.schady@bath.ac.uk",
  "subject": "GRB 191004A: correction to reported GROND upper limits",
  "submitter": "Patricia Schady at Swift  <p.schady@bath.ac.uk>",
  "eventId": "GRB 191004A"
}