{
  "circularId": 1234,
  "eventId": "GRB 020127",
  "createdOn": 1012269734000,
  "editedOn": 1731774158800,
  "body": "GRB 020127, I-band observations starting 3.14-hr after the event\n----------------------------------------------------------------\n\n  José María Castro Cerón, ROA (San Fernando),\n  Javier Gorosabel, DSRI (Copenhagen),\n  Jochen Greiner, AIP (Potsdam),\n  Sylvio Klose, TLS (Tautenburg),\n  Jan Snigula, USM (Munich) and\n  Alberto J. Castro-Tirado, IAA-CSIC (Granada) and LAEFF-INTA (Madrid)\n\n  report:\n\n  On 28 Jan 2002 we have observed the HETE error box for GRB 020127. The\n  first epoch images were centred at the initial ground analysis position\n  (= H1902) while the second epoch images were centred at the further ground\n  analysis position (Ricker et al. GCN 1229). Third epoch observations were\n  centred at the combined IPN annulus/HETE error circle (Hurley et al.,\n  GCN 1232).\n\n Imaging commenced 3.14 hours after the occurence of the burst. All images\n  were taken in the I-band, with the 1.23 m telescope at the Centro Astronómico\n  Hispano Alemán's Calar Alto Observatory (Almería, Spain). Exposures were\n  of 300 s.\n\n  A log of the observations is given below.\n\n  ---------------------------------------------------------------------\n  date start   R.A. (2000)  Dec. (2000)   number of  Error box Coverage\n     (UT)                                 frames          (%)\n  ---------------------------------------------------------------------\n  Jan 28.0039  08h 15m 20s  +36° 48' 00\"     1             75\n  Jan 28.0105  08h 15m 20s  +36° 34' 00\"     1             50\n  Jan 28.2164  08h 15m 06s  +36° 44' 31\"     3             90\n  Jan 28.9201  08h 15m 08s  +36° 46' 16\"     5            100\n  ---------------------------------------------------------------------\n\n  Visual inspection revealed no new object, brighter than the DSS-2 limiting\n  magnitude for this field (R ~21.5), in the 75% of the combined IPN\n  annulus/HETE error box  taken 3.14 hours after the GRB, when compared to\n  the third epoch images (~22 hours later, I_lim = 19.5), in agreement with\n  the ARC 3.5-m observations (Lamb et al. GCN 1230).\n\n This message may be cited.",
  "format": "text/plain",
  "subject": "GRB 020127, I-band observations starting 3.14-hr after the event",
  "submitter": "Alberto Castro-Tirado at LAEFF-INTA  <ajct@laeff.esa.es>",
  "version": 2,
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "email": "ajct@laeff.esa.es",
  "bibcode": "2002GCN..1234....1C"
}