{
  "bibcode": "2021GCN.30360....1S",
  "body": "I.A. Smith (Rice U.), D.A. Perley (LJMU), and N.R. Tanvir \n(U. of Leicester) report:\n\nWe observed the Swift UVOT location of GRB 210610B (Page \net al., GCN Circ. 30170) using the SCUBA-2 sub-millimeter \ncontinuum camera on the James Clerk Maxwell Telescope.  \nObservations totaling 3.1 hours were obtained on UT 2021-06-11, \n2021-06-12, and 2021-06-13 in good weather conditions each day.\nNo counterpart was detected in the individual or combined maps.\nCombining all the data, the RMS background noise was 0.94 mJy/beam \nat 850 microns and 5.7 mJy/beam at 450 microns; the mid-point of \nthe run was 1.61 days after the burst trigger.  \n\nWe thank Patrice Smith, Alexis-Ann Acohido, Harriet Parsons,\nMark Rawlings, and the JCMT staff for the prompt support of these \nobservations that were taken under project M21AP020.",
  "circularId": 30360,
  "createdOn": 1625302572000,
  "email": "ian.smith.astronomy@gmail.com",
  "subject": "GRB 210610B: JCMT SCUBA-2 sub-mm observations",
  "submitter": "Ian Smith at Rice U  <ian.smith.astronomy@gmail.com>",
  "eventId": "GRB 210610B"
}