{
  "bibcode": "2012GCN.14074....1M",
  "body": "A. N. Morgan (UC Berkeley) reports:\n\nWe observed the field of GRB 121212A (Grupe et al., GCN 14064) with\nthe 1.3m PAIRITEL located at Mt. Hopkins, Arizona. Observations began\nat 2012-Dec-12 09h50m10s UT, ~2.9 hours after the Swift trigger.  In\nmosaics (effective exposure time of 1.96 h) taken simultaneously in\nthe J, H, and Ks filters, we do not detect any source at the afterglow\nlocation (Kuin et al., GCN 14069; Perley and Horesh, GCN 14070; Elenin\net al., GCN 14071; Cenko, GCN 14072).\n\npost burst\nt_mid (hr) exp.(hr) filt  U. Limit (3 sig).\n4.79      1.96     J     > 19.0\n4.79      1.96     H     > 17.9\n4.79      1.96     Ks    > 17.1\n\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.",
  "circularId": 14074,
  "createdOn": 1355350653000,
  "email": "qmorgan@gmail.com",
  "subject": "GRB 121212A: PAIRITEL NIR Observations",
  "submitter": "Adam Morgan at U.C. Berkeley  <qmorgan@gmail.com>",
  "eventId": "GRB 121212A"
}