{
  "bibcode": "2007GCN..6993....1U",
  "body": "Y. Urata (Saitama Univ.), K.Y. Huang (ASIAA), W.H. Ip (NCU), and \nL. Albert (CFHT/UH) on behalf of EAFON team:\n\n\"We have observed the field of GRB 071021 (Sakamoto et al., GCN 6958)\nin Ks-band using the WIRCam instrument on the CFHT telescope.  We\nmarginally detected the afterglow (Castro-Tirado et al. GCNs 6968,\n6971, Malesani et al. GCN 6972, Terada et al GCN 6976, Piranomonte et\nal. GCN 6985).  The brightness derived from 2MASS stars is about Ks~21\nat the mid time of the stacked image (2007-10-23-05:42). This result\nsuggests that the NIR afterglow show shallow decay between October 22\nand 23. Further analysis and observations are in progress.\"\n\nThis message may be cited.",
  "circularId": 6993,
  "createdOn": 1193295317000,
  "email": "urata@crystal.heal.phy.saitama-u.ac.jp",
  "subject": "GRB071021 : CFHT Ks-band observation",
  "submitter": "Yuji Urata at Saitama U  <urata@crystal.heal.phy.saitama-u.ac.jp>",
  "eventId": "GRB 071021"
}