{
  "bibcode": "2002GCN..1616....1D",
  "body": "A. Di Paola (1), A. Boattini (2), M. Del Principe (3),\nT. Konstantinova (4), V. Larionov (4), L. A. Antonelli (1)\n\n1) Rome Astronomical Observatory (IT)\n2) IASF - CNR (IT)\n3) Teramo Astronomical Observatory (IT)\n4) St.Petersburg University (RU)\n\non the behalf of the GROAR Team, report:\n\nWe have imaged the GRB021004 OT (GCN 1565) from the\nCampo Imperatore Observatory both with the 1.1 meters\nAZT-24 telescope at NIR wavelengths and with the\n60cm Schmidt telescope at optical wavelengths .\nThe last I band point has been obtained using the\nAZT-8 telescope from the Crimea Observatory.\n\nObservations on both Campo Imperatore and Crimea\nObservatory have been triggered by the FAMe\nfacility at http://grb.mporzio.astro.it/.\n\nThe Campo Imperatore observations started on\n2002-10-05 19:50:00 UT and ended on\n2002-10-06 04:20:00 UT, respectively 32.1 and 39.7\nhours after the burst.\n\nWe obtained two run using V, R, I, J and K filters.\n\nRun #1:\n2002-10-05.840498 V-band: OT ~ 20.06 +- 0.06\n2002-10-05.865937 R-band: OT ~ 19.52 +- 0.05\n2002-10-05.884722 I-band: OT ~ 19.1  +- 0.1\n2002-10-05.863102 J-band: OT ~ 18.4  +- 0.1\n2002-10-05.909583 K-band: OT ~ 16.4  +- 0.1\n\nRun #2:\n2002-10-06.062256 V-band: OT ~ 20.78 +- 0.10\n2002-10-06.083842 R-band: OT ~ 19.89 +- 0.07\n2002-10-06.116319 J-band: OT ~ 18.5  +- 0.1\n2002-10-06.159548 K-band: OT ~ 17.1  +- 0.3\n\nThe Crimea I point has been obtained on:\n2002-10-06.965972 I-band: OT ~ 19.3  +- 0.1\n\nThe color indexes at Run#1 are:\n  V-J ~ 1.7 +- 0.2\n  V-K ~ 3.7 +- 0.2\n\nThe magnitudes calibration is obtained from\nA. Henden GCN 1583 for the optical points and from\n2MASS catalog for the infrared points.\n\nThe refined analysis is underway.",
  "circularId": 1616,
  "createdOn": 1034269955000,
  "email": "dipaola@mporzio.astro.it",
  "subject": "GRB021004: NIR and Optical observations",
  "submitter": "Andrea Di Paola at Rome Astron.Obs.-INAF  <dipaola@mporzio.astro.it>",
  "eventId": "GRB 021004"
}