{
  "bibcode": "2019GCN.26604....1M",
  "body": "Tomas Mueller (Southampton), Juanita Antilen (Universidad de Chile), \nDaniele B. Malesani (DTU Space), Paolo D'Avanzo (INAF/Brera), Joe \nAnderson (ESO), Mariusz Gromadzki (Warsaw), Cosimo Inserra (Cardiff), \nErkki Kankare (Turku), Matt Nicholl (Birmingham), Ofer Yaron (Weizmann), \nDavid Young (QUB), Roberta Carini (INAF/Roma), Regis Cartier (CTIO), \nTing-Wan Chen (Stockholm), Matt Grayling, Mat Smith, Phil Wiseman \n(Southampton), Chris Frohmaier (ICG Portsmouth), report:\n\nWe observed GRB 191228A (Bernardini et al., GCN 26601) under the the \nextended Public ESO Spectroscopic Survey for Transient Objects \n(ePESSTO+; see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ). \nThe observations were performed on the ESO New Technology Telescope at \nLa Silla with the EFOSC2 instrument in imaging mode, starting on 2019 \nDec 28 at 01:22:23 UT (i.e. 1.35 hr after the burst).\n\nIn a 2-minute image taken using the r filter, we detect no objects \nconsistent with the XRT position, down to a 3-sigma limiting magnitude \nof r = 22.6 AB (calibrated against stars from the Pan-STARRS catalog).",
  "circularId": 26604,
  "createdOn": 1577527911000,
  "email": "malesani@space.dtu.dk",
  "subject": "GRB 191228A: ePESSTO+ NTT optical upper limit",
  "submitter": "Daniele B Malesani at DTU Space  <malesani@space.dtu.dk>",
  "eventId": "GRB 191228A"
}