TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1616 SUBJECT: GRB021004: NIR and Optical observations DATE: 02/10/10 17:12:35 GMT FROM: Andrea Di Paola at Rome Astron.Obs.-INAF A. Di Paola (1), A. Boattini (2), M. Del Principe (3), T. Konstantinova (4), V. Larionov (4), L. A. Antonelli (1) 1) Rome Astronomical Observatory (IT) 2) IASF - CNR (IT) 3) Teramo Astronomical Observatory (IT) 4) St.Petersburg University (RU) on the behalf of the GROAR Team, report: We have imaged the GRB021004 OT (GCN 1565) from the Campo Imperatore Observatory both with the 1.1 meters AZT-24 telescope at NIR wavelengths and with the 60cm Schmidt telescope at optical wavelengths . The last I band point has been obtained using the AZT-8 telescope from the Crimea Observatory. Observations on both Campo Imperatore and Crimea Observatory have been triggered by the FAMe facility at http://grb.mporzio.astro.it/. The Campo Imperatore observations started on 2002-10-05 19:50:00 UT and ended on 2002-10-06 04:20:00 UT, respectively 32.1 and 39.7 hours after the burst. We obtained two run using V, R, I, J and K filters. Run #1: 2002-10-05.840498 V-band: OT ~ 20.06 +- 0.06 2002-10-05.865937 R-band: OT ~ 19.52 +- 0.05 2002-10-05.884722 I-band: OT ~ 19.1 +- 0.1 2002-10-05.863102 J-band: OT ~ 18.4 +- 0.1 2002-10-05.909583 K-band: OT ~ 16.4 +- 0.1 Run #2: 2002-10-06.062256 V-band: OT ~ 20.78 +- 0.10 2002-10-06.083842 R-band: OT ~ 19.89 +- 0.07 2002-10-06.116319 J-band: OT ~ 18.5 +- 0.1 2002-10-06.159548 K-band: OT ~ 17.1 +- 0.3 The Crimea I point has been obtained on: 2002-10-06.965972 I-band: OT ~ 19.3 +- 0.1 The color indexes at Run#1 are: V-J ~ 1.7 +- 0.2 V-K ~ 3.7 +- 0.2 The magnitudes calibration is obtained from A. Henden GCN 1583 for the optical points and from 2MASS catalog for the infrared points. The refined analysis is underway.