{
  "bibcode": "2013GCN.14981....1P",
  "body": "D. A. Perley, L. P. Singer (Caltech), and S. B. Cenko (GSFC) report:\n\nWe obtained additional observations of the location of the probable \nafterglow of GRB 130702A with the Palomar 60-inch robotic telescope.  A \nseries of repeated imaging sequences were taken in B, g, r, i, and z \nfilters during intermittent clouds.  Example photometry from one \nsequence is as follows:\n\n  tstart(d)  exp(s) filt mag        unc\n  2.20405    120     i = 19.129 +/- 0.05\n  2.20565    120     r = 19.297 +/- 0.05\n  2.20728    120     B = 19.635 +/- 0.07\n  2.20888    120     z = 19.204 +/- 0.16\n  2.21048    120     g = 19.519 +/- 0.08\n\nCompared to our previous night's P60 observations (Singer et al., GCN \n14967) and referenced to the GBM trigger time (Collazzi et al., GCN \n14972), the fading is consistent with a power law with decay index of \napproximately alpha=1.1, steeper than that inferred during the first 24 \nhours.",
  "circularId": 14981,
  "createdOn": 1372925148000,
  "email": "dperley@astro.caltech.edu",
  "subject": "GRB 130702A: Continued P60 observations",
  "submitter": "Daniel Perley at Caltech  <dperley@astro.caltech.edu>",
  "eventId": "GRB 130702A"
}