{
  "bibcode": "2001GCN...979....1L",
  "body": "G. Li Causi, A. Di Paola, L.A. Antonelli, S. Puccetti, Osservatorio \nAstronomico di Roma, Italy, G. Valentini, Osservatorio Astronomico \ndi Teramo, Italy, on behalf of a larger collaboration report:\n\n\"On Feb. 21 and Feb. 22 we observed the WFC error circle of GRB 010220\n(Piro, GCN #953 and Manzo et al. GCN #956) in J and K band with the\nAZT-24 1.1-meter telescope at Campo Imperatore (AQ).\n\nAt a preliminary investigation of the images we do not find any\nobvious candidate for the GRB 010220 afterglow. The limiting\nmagnitudes reached in the four observations are reported in the \ntable below:\n\n           Date                                \n  Band  Feb 2001(UT)  Lim.Mag.   Texp(s)  S/N  \n  ===========================================\n                                       \n    J     21.8841    18.4+/-0.2   2700     3 \n    K     21.9258    17.5+/-0.2   3000     3 \n    K     22.7627    17.1+/-0.2   2200     3       \n    J     22.7990    18.6+/-0.2   2700     3\n\n\nDue to the contamination from the nearby bright star we are not able\nto detect any object at the radio position quoted by Berger et al.,\nGCN #958.\n\nThe Feb. 21 K-band image is posted at\nhttp://argos.mporzio.astro.it/angelo/grb010220/\n\nThis message is citable.\"",
  "circularId": 979,
  "createdOn": 982935575000,
  "email": "angelo@coma.mporzio.astro.it",
  "subject": "GRB 010220: Near-IR Observations",
  "submitter": "Angelo Antonelli at Obs. Astro. di Roma  <angelo@coma.mporzio.astro.it>",
  "eventId": "GRB 010220"
}