{
  "bibcode": "2020GCN.27177....1S",
  "body": "B. Stecklum, S. Klose, A. Nicuesa Guelbenzu, and S. Melnikov (all \nTautenburg) report:\n\nWe observed the field of GRB 200224A (T0=03:24:49 UT; Ukwatta et al., GCN \n27173) with the Tautenburg 1.34m Schmidt telescope equipped with the \nTAUKAM 6k x 6k CCD camera and the wide V-band filter (VB). The \ntransmission curve of this filter closely follows the Gaia GBP filter. \nObservations started at 04:09:53 UT and consisted of 5x3 min exposures.\n\nBased on several Gaia DR2 stars in the field within 1 arcmin radius about \nthe afterglow position, we measure for the optical transient (Sota et al., \nGCN 27176) at RA, DEC (J2000) = 16:35:04.11, +41:36:42.4 (+/- 0.5 arcsec) \nthe following preliminary Vega magnitude:\n\nmean time t = Feb 24, 04:18:01 UT; t-T0 = 53m 12s;  VB = 21.83 +/- 0.10.\n\n\n[GCN OPS NOTE(24feb20): This is the sixth Circular in the sequence of 8 circulars\nwhich were all labeled A because of the sequence assigner being offline.  \nThis circular was correctly labelled A.]",
  "circularId": 27177,
  "createdOn": 1582529832000,
  "email": "klose@tls-tautenburg.de",
  "subject": "GRB 200224A: Tautenburg observations",
  "submitter": "Sylvio Klose at TLS Tautenburg  <klose@tls-tautenburg.de>",
  "eventId": "GRB 200224A"
}