{
  "bibcode": "2010GCN.10749....1M",
  "body": "A. N. Morgan, D. A. Perley, C. R. Klein, and J. S. Bloom (UC Berkeley) report:\n\nWe continued to observe the location of GRB 100513A (Baumgartner et al.,\nGCN 10746) with the 1.3m PAIRITEL located at Mt. Hopkins, Arizona.\nThe candidate afterglow (Morgan et al., GCN 10747) is detected in all\nthree filters (J, H, and Ks) in the first epoch.  The source fades\nbetween epochs, confirming that this is indeed the afterglow of GRB\n100513A.\n\nThe preliminary photometry yields:\n\npost burst\nt_mid (hr) exp.(s) filt  mag   m_err\n0.99       1030    J     17.8  0.1\n0.99       1030    H     17.2  0.1\n0.99       1030    Ks    16.4  0.2\n\n1.68       1685    J     18.0  0.1\n1.68       1685    H     17.6  0.1\n\n2.72       2855    J     18.4  0.2\n\nAll magnitudes are given in the Vega system, calibrated to 2MASS. No\ncorrection for Galactic extinction has been made to the above reported\nvalues.\n\n[GCN OPS NOTE(13may10): Per author's request, the Palmer reference\nwas change to the Baumgartner reference.]",
  "circularId": 10749,
  "createdOn": 1273732593000,
  "email": "qmorgan@gmail.com",
  "subject": "GRB 100513A: PAIRITEL continued observations and confirmation of  fading",
  "submitter": "Adam Morgan at U.C. Berkeley  <qmorgan@gmail.com>",
  "eventId": "GRB 100513A"
}