{
  "bibcode": "2006GCN..5779....1G",
  "body": "A. C. Gupta & J. M. Bai \nNational Astronomical Observatories/Yunnan Observatory \nCAS, P.O. Box 110, Kunming, Yunnan 650011, China\n\nWe observed the field of GRB 061028 detected by SWIFT\ntrigger no. 235715 (Sakamoto et al, GCN 5762) with CCD\ndetector at our 1.02 meter telescope of the Yunnan observatory,\nKunming, China. \nWe started our observation on Oct. 29, 2006 at UT 18:06:20.\nWe took 6 image frames of 300 seconds exposure time of each in\nthe optical R passband. \nThere is no detection of optical afterglow candidate in our\ncombined 6 images. The 5-sigma limiting magnitude of our observations\nis R ~ 20.0 mag.",
  "circularId": 5779,
  "createdOn": 1162451204000,
  "email": "alok@ynao.ac.cn",
  "subject": "GRB 061028: Optical R passband observations",
  "submitter": "Alok Chandra Gupta at Nat. Astro. Obs./Yunnan Obs  <alok@ynao.ac.cn>",
  "eventId": "GRB 061028"
}