{
  "bibcode": "2002GCN..1309....1M",
  "body": "F. Mannucci (IRA/CNR, Firenze), N. Masetti (IASF/CNR, Bologna), \nE. Pian (INAF, Astr. Obs. Trieste), P. Ranfagni (INAF, Astr. Obs. Arcetri), \nS. Covino (INAF, Astr. Obs. Brera), G.L. Israel (INAF, Astr. Obs. Rome),\non behalf of a larger collaboration, report:\n\nWe imaged the field of GRB020322 (Piro, GCN #1290) with TIRGO equipped\nwith the near-IR camera ARNICA and the J and Kc filters on \n2002 Mar 24.14 - 24.18 UT and on 2002 Mar 25.10 - 25.18 UT.\nThe total exposure times were: 78 min in J and 26 min in Kc on the \nfirst epoch; 80 min in J and 66 min in Kc on the second.\nThe PSF FWHM was about 3.0 arcsec on both nights.\nThe images in both bands were calibrated by using an average zero point. \n\nNo source is significantly detected either at the position of the optical\nafterglow of this GRB (source `b' of Bloom et al., GCN #1296) or within\nthe XMM-Newton error box (Ehle et al., GCN #1293) down to 3-sigma limiting\nmagnitudes of J = 19.9 and Kc = 18.1 on the first epoch and of J = 19.9\nand Kc = 18.7 on the second.\nHowever, a ~1-sigma excess is seen at the position of the source `b' \nin the Kc-band image acquired on the first epoch.\n\nA close-up of the four summed images on the XMM-Newton error box can be\nfound at \n\nhttp://tonno.tesre.bo.cnr.it/~masetti/grb020322.html\n\nThis message may be cited.",
  "circularId": 1309,
  "createdOn": 1017155232000,
  "email": "masetti@tesre.bo.cnr.it",
  "subject": "Near-Infrared Observations of GRB020322 at TIRGO",
  "submitter": "Nicola Masetti at ITeSRE,CNR,Bologna  <masetti@tesre.bo.cnr.it>",
  "eventId": "GRB 020322"
}