{
  "bibcode": "2019GCN.25585....1P",
  "body": "D. A. Perley and A. M. Cockeram (LJMU) report:\n\nWe obtained observations of the afterglow of GRB 190829A (Dichiara et \nal., GCN 25552; Lesage et al., GCN 25575; Xu et al., GCN 25555) with the \nIO:O imager on the 2m robotic Liverpool Telescope.  Two epochs of \nimaging in the u, g, r, i, and z filters were acquired on 2019-08-30 UT \n(at approximately 03:33 and 05:01) plus one epoch of g, r, in and z \nimaging on 2019-08-31 UT (starting at 02:27).  The afterglow is clearly \ndetected in griz in all three epochs.  It is not detected in u-band.\n\nFor our most recent epoch, we report the following magnitudes after \nsubtraction of the presumptive host galaxy using PS1 catalog images \n(times relative to the Swift trigger, in days):\n\n  t-t0    filt   mag       unc\n  ------  ----   -----     ----\n  1.2715    i  = 20.75 +/- 0.10\n  1.2809    g  = 22.45 +/- 0.21\n  1.2903    r  = 21.65 +/- 0.10\n  1.2996    z  = 19.88 +/- 0.06\n\nFurther observations are planned.\n\n\n\n\n\n\n\n\n\n\nDisclaimerNone",
  "circularId": 25585,
  "createdOn": 1567223409000,
  "email": "d.a.perley@ljmu.ac.uk",
  "subject": "GRB 190829A: Liverpool Telescope optical photometry",
  "submitter": "Daniel Perley at Liverpool JMU  <d.a.perley@ljmu.ac.uk>",
  "eventId": "GRB 190829A"
}