{
  "bibcode": "2006GCN..5279....1K",
  "body": "D. A. Kann (Thueringer Landessternwarte Tautenburg) and S. Manohar (USC, \nLos Angeles), report:\n\nWe observed the field of GRB 060109 (Pasquale et al., GCN 4455) with the \nTautenburg 1.34m Schmidt telescope under good observing conditions. We \nobtained 11 x 600 sec images in the Rc filter for a total integration time \nof 110 minutes. The mean observation time was June 27.9920 UT, which is \n168.2 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 (Beardmore et al., GCN \n4462), we do not detect any sources. The 2 sigma limiting magnitude of the \nimage is Rc=23.5. This magnitude is not corrected for the moderate \nforeground extinction, E(B-V)=0.144.\n\nThis message may be cited.",
  "circularId": 5279,
  "createdOn": 1151434490000,
  "email": "kann@tls-tautenburg.de",
  "subject": "GRB 060109: Upper Limit on Host Galaxy",
  "submitter": "Alexander Kann at TLS Tautenburg  <kann@tls-tautenburg.de>",
  "eventId": "GRB 060109"
}