{
  "bibcode": "2015GCN.17694....1K",
  "body": "S. Klose, S. Schmidl, B. Stecklum, A. Nicuesa Guelbenzu, D. A. Kann, and \nF. Ludwig (TLS Tautenburg) report:\n\nTautenburg observed the afterglow of GRB 150413A (Markwardt et al., GCN \n17688; Ivanov et al., GCN 17689; Tyurina et al., GCN 17690; Serino et al., \nGCN 17691; Schmalz et al., GCN 17692; Xu et al., GCN 17693) with the 1.34m \nSchmidt telescope under good weather conditions.\n\nAt a mean time of 19:23 UT we measure a preliminary magnitude of R = 17.2 \n+/- 0.1, calibrated against the USNO B1 star #1618-0098185 (Xu et al.).\n\nObservations are continuing.",
  "circularId": 17694,
  "createdOn": 1428954602000,
  "email": "klose@tls-tautenburg.de",
  "subject": "GRB 150413A: Tautenburg observations",
  "submitter": "Sylvio Klose at TLS Tautenburg  <klose@tls-tautenburg.de>",
  "eventId": "GRB 150413A"
}