{
  "bibcode": "2006GCN..4929....1T",
  "body": "F. Terra, (Second University of Roma \"Tor Vergata\"), D. Nanni\n(INAF/OAR and Second University of Roma \"Tor Vergata\"), G. Greco,\nC. Bartolini, A. Guarnieri, A. Piccioni (Bologna University), R.\nGualandi, A. De Blasi (INAF Bologna) and G. Pizzichini (INAF/IASF\nBologna) report:\n\nWe observed the OT of GRB 060218/SN 2006aj (Cusumano et al. GCN 4775)\nin the V and R bands with the 152 cm Loiano telescope equipped with\nthe BFOSC camera system.\nObservations  were carried out on 2006 Mar 7  and 11 under  poor\nobserving conditions (seeing=2.7-3.2 arcsec).\nUsing  the comparison stars reported by Hicken et al. (GCN 4898), we\nfind the following magnitudes, in agreement with those given by other\nauthors, e.g. Sollerman et al., astro-ph/0603495 and Pian et al.,\nastro-ph/0603530:\n\nMean UT.........filter.....Exptime(s)....... magnitude\nMar 07.7506 ......Rc...........300..........17.31+/-0.06\nMar 07.7633.......Rc......... 1200..........17.36+/-0.03\nMar 07.7779.......V...........1200..........17.76+/-0.04\nMar 11.7865.......V............300..........18.15+/-0.08\nMar 11.7962.......V...........1200..........18.11+/-0.06\nMar 11.8123.......Rc..........1200..........17.63+/-0.04\nMar 11.8302.......Rc..........1200..........17.60+/-0.04\n\nOne of our images is posted in our public directory from where it\ncan be retrieved by sftp using:\nhostname: ermione.bo.astro.it\nusername: publicGRB\npassword: GRB_bo.",
  "circularId": 4929,
  "createdOn": 1143478674000,
  "email": "adb@piccio.org",
  "subject": "GRB060218,  optical observations",
  "submitter": "Adalberto Piccioni at Astronomy, Bologna U.  <adb@piccio.org>",
  "eventId": "GRB 060218"
}