{
  "bibcode": "2010GCN.10504....1G",
  "body": "Gendre B. (ASDC), Klotz A. (CESR-OMP),\nBoer M. (OHP-OAMP), Atteia J.L. (LATT-OMP) report:\n\nWe imaged the field of GRB 100316A detected by SWIFT\n(trigger 416076, GCN 10484, Baumgartner et al. ) with the TAROT robotic \ntelescope (D=25cm)\nlocated at the Calern observatory, France.\n\nThe observations started 1323s after the GRB trigger\n(1299s after the notice). The elevation of the field increased from\n58 degrees above horizon and weather conditions were good.\n\nWe obtained 16 image with clear filter and 8 images with R filter\n(see the description in Klotz et al., 2006, A&A 451, L39).\n\nWe do not detect any OT within the exposures. Co-adding the images taken\nwith clear filter, we can set a limiting magnitude of:\n\nR > 20.0 between t0+1323s to t0+3327s\n\nat the position of the candidate reported by Gorosabel et al. (GCN 10487)\nand Beardmore et al. (GCN 10485).\n\n\nMagnitudes were estimated with the nearby USNO-B1 stars\nand are not corrected for galactic dust extinction.\n\nN.B. Galactic coordinates are lon=103.8139 lat=+35.1341\nand the galactic extinction in R band is 0.1 magnitudes\nestimated from D. Schlegel et al. 1998ApJ...500..525S.\n\nThis message may be cited.",
  "circularId": 10504,
  "createdOn": 1268762947000,
  "email": "bruce.gendre@asdc.asi.it",
  "subject": "GRB 100316A: TAROT Calern observatory optical observations",
  "submitter": "Bruce Gendre at ASDC  <bruce.gendre@asdc.asi.it>",
  "eventId": "GRB 100316A"
}