{
  "bibcode": "2019GCN.25206....1A",
  "body": "Tomas Ahumada (UMD) and Michael W. Coughlin (Caltech) on behalf of the Global Relay of Observatories Watching Transients Happen (GROWTH) collaboration.\r\n\r\n\r\nWe used the 2-m telescope at the LCO node at Haleakala Observatory to obtain 180 second g,r, and i-band images for the ZTF optical transient ZTF19abjethn (AT2019lvs) listed in Kasliwal et al. (GCN 25199) starting at 14:50:26.164 UT on 2019-07-28.\r\n\r\n\r\nThe measurements of this transient are consistent with a significant rise in the r-and g-band magnitudes reported by both Kasliwal et al. (GCN 25199), on top of the rise reported by Smartt et al. (GCN 25204), albeit in a different band.\r\n\r\n\r\nMagnitudes are derived after calibrating against PS1:\r\n\r\n\r\nu = 18.4 +- 0.1\r\n\r\ng  = 17.38 +- 0.03\r\n\r\nr = 17.51 +- 0.04\r\n\r\ni = 17.62 +- 0.04",
  "circularId": 25206,
  "createdOn": 1564346605000,
  "email": "mcoughli@caltech.edu",
  "subject": "LIGO/Virgo S190728q: LCO Follow-Up of ZTF19abjethn (AT2019lvs)",
  "submitter": "Michael Coughlin at Caltech/LIGO  <mcoughli@caltech.edu>",
  "eventId": "LIGO/Virgo S190728q"
}