{
  "bibcode": "2006GCN..5278....1K",
  "body": "D. A. Kann (Thueringer Landessternwarte Tautenburg) and S. Manohar (USC, \nLos Angeles), report:\n\nWe observed the field of GRB 060105 (Ziaeepour et al., GCN 4429) with the \nTautenburg 1.34m Schmidt telescope under good observing conditions. We \nobtained 6 x 600 sec images in the Rc filter for a total integration time \nof 60 minutes. The mean observation time was June 27.9288 UT, which is \n172.7 days after the burst. We determine the zero point of the image in \ncomparison with nine unsaturated and isolated stars of the USNOB1.0 \ncatalog. Astrometry is also performed against the USNOB1.0 catalog.\n\nAt the refined position of the X-ray afterglow (Godet et al., GCN 4433), \nwe do not detect any sources. The 2 sigma limiting magnitude of the image \nis Rc=23, but the position of the afterglow is affected by the PSF of \nseveral nearby bright stars. We set a limiting magnitude of Rc=22.5 for \nany source at this position. This magnitude is not corrected for the \nmoderate foreground extinction, E(B-V)=0.171.\n\nThis message may be cited.",
  "circularId": 5278,
  "createdOn": 1151434193000,
  "email": "kann@tls-tautenburg.de",
  "subject": "GRB 060105: Upper limit on Host Galaxy",
  "submitter": "Alexander Kann at TLS Tautenburg  <kann@tls-tautenburg.de>",
  "eventId": "GRB 060105"
}