{
  "bibcode": "2016GCN.19147....1F",
  "body": "W. Fong (University of Arizona) reports on behalf of a larger collaboration:\n\n\"We observed the location of the possibly short-duration GRB 160303A\n(Beardmore et al., GCN 19126) with MMTCam mounted on the 6.5-m MMT at a\nmid-time of 2016 Mar 4.232 UT (18.64 hr post-burst). We obtained 9x200-sec\nof r-band observations in 1.0\" seeing at a mean airmass of 1.2. We detect\nthe optical afterglow (Butler et al., GCN 19131) with a magnitude of\nr(AB)~23.90 +/- 0.15 (calibrated to SDSS) at a position consistent with the\nNOT position (de Ugarte Postigo et al., GCN 19136). Our measured afterglow\nbrightness is consistent with the VLT value at a similar epoch (Klose et\nal., GCN 19142).\"",
  "circularId": 19147,
  "createdOn": 1457120716000,
  "email": "wfong@email.arizona.edu",
  "subject": "GRB 160303A: MMT Optical Detection",
  "submitter": "Wen-fai Fong at U of Arizona  <wfong@email.arizona.edu>",
  "eventId": "GRB 160303A"
}