{
  "bibcode": "2019GCN.23841....1P",
  "body": "Gregory S. H. Paek, Myungshin Im, Lim Gu, on behalf of a larger\ncollaboration\n\n We observed the afterglow of GRB 190202A (Lien et al., GCN 23830;\nNovichonok et al., GCN 23831; Evans et al., GCN 23832; Steeghs et al., GCN\n23833; Kuin et al., GCN 23834; Verrecchia et al., GCN 23835; Markwardt et\nal., GCN 23836; Veres et al., GCN 23838; Cucchiara et al., GCN 23839; Lien\net al., GCN 23840) with the 0.8-m telescope at the McDonald observatory.\nThe observation started at 2019-02-02 08:02 UT or about 6.3 hours after the\ninitial alert.\n\n The afterglow is detected in R bands, and preliminary magnitudes are\nderived, using nearby Pan-STARRS stars as photometry references.\n\nFilter Date UT-start exptime[sec] AB_mag\nR    2019-02-02 08:02:05        180*3    19.72 +/- 0.15",
  "circularId": 23841,
  "createdOn": 1549171361000,
  "email": "shpaek@astro.snu.ac.kr",
  "subject": "GRB 190202A: McDonald 0.8-m telescope optical observation",
  "submitter": "Gregory SungHak Paek at SNU  <shpaek@astro.snu.ac.kr>",
  "eventId": "GRB 190202A"
}