{
  "bibcode": "2003GCN..2424....1V",
  "body": "A.Volvach, I.Strepka (CrAO) on behalf of CrAO/IKI/SAO collaboration report:\n\nWe have observed the radio afterglow position (E.Berger et al,  GCN2014) of\nGRB030329 (R. Vanderspek et al, GCN1997) in June 26  at 4.8GHz, in July 8 at\n22GHz, and in September at 4.8 and 8GHz with 22-m radio telescope RT-22 of\nCrimean Astrophysical Observatory. The radio source was detected at 22 GHz\nand upper limits have been obtained for other frequencies. The flux\ndensities are:\n\nDate,UT   Frequency  Duration    Flux density\n            GHz         hrs           mJy\nJun. 26     4.8         2        21.0 (3 sigma upper limit)\nJul. 08     22          2         6.9 +-2.3\nSep. 23      8          2         9.0 (3 sigma)\nSep. 25     4.8         3         7.5 (3 sigma)\n\nThe sensitivity at 4.8 GHz was significantly improved in September with\nintroducing in operation a cryo-radiometer. In September we detected a\nsignal at 4.8 GHz, however the beam of RT-22 (12 arcmin) covers 3 sources\nfound in NVSS (Condon et al. 1998, AJ, 115, 1693).The upper limit of flux\ndensity on Sep. 25 includes statistical errors and uncertainty of spectral\nindices of the 3 sources.\n\nThe message may be cited.",
  "circularId": 2424,
  "createdOn": 1066665979000,
  "email": "rum@crao.crimea.ua",
  "subject": "GRB030329: radio observations at RT-22 (CrAO)",
  "submitter": "Vasilij Rumjantsev at CrAO  <rum@crao.crimea.ua>",
  "eventId": "GRB 030329"
}