{
  "bibcode": "2019GCN.24567....1H",
  "body": "Y.-D. Hu, X.-Y. Li, E. Fernandez-Garcia, A. Ayala, A. J. Castro-Tirado \n(IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco (Univ. de \nMalaga), S. Guziy (Univ. of Nikolaev), D. Xiong, Y. Fan, X. Zhao, J. \nBai, C. Wang, Y. Xin, J. Mao (Yunnan Nacional Astronomical Observatory), \nA. Fernandez and I. Hermelo (CAHA),  on behalf of a larger \ncollaboration, report:\n\nFollowing the detection of GRB 190515B by Swift (Moss et al. GCNC \n24553), the 0.6m BOOTES-4/MET robotic telescope at Lijiang Astronomical \nObservatory (China) automatically responded gathering 9 frames (g��� \nfilter, 30s exposures) starting at 16:10:44UT (0.11 hr after trigger). \nIn addition, 23 frames at the 2.2m Calar Alto telescope equipped with \nCAFOS (I-band, 120s exposures) were taken starting at 20:45:41 UT (4.69 \nh post burst). On the co-added images, no optical afterglow is found \ndown to 18.9 mag (g-band) or 22.1 (I-band) respectively at the enhaced \nXRT position (Evans et al. GCNC 24554), in agreement with Belkin et al. \n(GCNC 24556) and de Ugarte Postigo et al. (GCNC 24558). Particularly the \nCalar Alto co-add I-band frame does not detect the marginal object \nreported in GCNC 24556.\n\nWe thank the CAHA staff for excellent support.",
  "circularId": 24567,
  "createdOn": 1558063588000,
  "email": "ajct@iaa.es",
  "subject": "GRB 190515B: BOOTES-4/MET and 2.2m CAHA optical limits",
  "submitter": "Alberto J. Castro-Tirado at IAA-CSIC  <ajct@iaa.es>",
  "eventId": "GRB 190515B"
}