{
  "bibcode": "2013GCN.15353....1C",
  "body": "S. B. Cenko (NASA/GSFC) and D. A. Perley (Caltech) report on behalf of a\nlarger collaboration:\n\nWe have observed the location of the Swift GRB131018A (Melandri et al.,\nGCN 15349) with the robotic Palomar 60 inch telescope.  Two 60 s frames\nwere obtained before the telescope closed due to the imminent sunrise.  We\nfind no new sources within the enhanced XRT error circle (Goad et al., GCN\n15352).  Using nearby point sources from SDSS for photometric calibration,\nwe the following upper limits:\n\nr' > 20.1 mag at 12:56 UT (dt = 8.6 min)\ni' > 19.5 mag at 12:58 (dt = 10.0 min)",
  "circularId": 15353,
  "createdOn": 1382130359000,
  "email": "cenko@srl.caltech.edu",
  "subject": "GRB 131018A: P60 Observations",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 131018A"
}