{
  "bibcode": "2017GCN.22258....1T",
  "body": "S.A. Trushkin, A.K. Erkenov, P.G. Tsybulev and N.A. Nizhelskij (SAO RAS)\nreport:\n\nWe have observed GRB 171205A (D'Elia et al.; GCN Circ. 22177) with\nthe RATAN-600 radio telescope at 4.7 and 8.2 GHz from December 9 to\nDecember 16 2017 daily. We have detected a radio fluxes within the RA\nerrors of the source detected with VLA (Laskar et al.; GCN Circ. 22216).\nThe mean flux densities are equal 15 +- 2 and 19 +- 2 mJy at 4.7 and 8.2\nGHz respectively. But we must notice that there is a known NVSS source\nJ110939.0-123330  (32 mJy at 1.4 GHz), also detected in the\nGLEAM multi-frequency survey: J110938-123334 in the field of GRB 171205A\n(J110939.5-123518).\nWe have probably detected contributions from both sources with the\nRATAN arcmin-beams. Thus if we subtract the fluxes from the\nNVSS source, using the power-law fitting of its spectrum\nwe can estimate the refined fluxes from GRB 171205A:  < 3 mJy at 4.7 GHz\nand 10 +- 3 mJy at 8.2 GHz for mean epoch: December 12 (MJD 58099.0),\ni.e. ~7.3 days after the burst.\n\n[GCN OPS NOTE(16dec17):  Per GCN, the extra, submitter-supplied 5-line\ntitle-block was removed.]",
  "circularId": 22258,
  "createdOn": 1513439965000,
  "email": "sergei.trushkin@gmail.com",
  "subject": "GRB 171205A: RATAN observations",
  "submitter": "Sergei Trushkin at Special Astrophys. Obs.,Russia  <sergei.trushkin@gmail.com>",
  "eventId": "GRB 171205A"
}