{
  "submittedHow": "web",
  "body": "E. Fernandez-Garcia, Y.-D. Hu, I. Perez-Garcia, M.D. Caballero-Garcia, R. Sanchez-Ramirez, S. Guziy and A. J. Castro-Tirado (IAA-CSIC, Granada), P. J. Meintjes and H. J. van Heerden (UFS, SouthAfrica), A. Martin-Carrillo and L. Hanlon (UCD, Ireland) and C. J. Perez del Pulgar (UMA, Malaga), on behalf of a larger collaboration, report:\n\nFollowing the detection of GRB 230815A by Swift (Klingler et al. GCNC 34434) and Fermi (Mayland et al. GCNC 34440), the BOOTES-6/DPRT 0.6m robotic telescope at Boyden Observatory in Maselspoort (South Africa) automatically observed the GRB location starting on Aug. 15, 19:21 UT (~ 8.5 h after trigger). No new optical source is detected on the co-added image (5 x 60 s, clear filter) within the enhanced Swift/XRT error region (Beardmore et al. GCNC 34437) down to 19.5 mag.\n\nWe thank the staff at Boyden Observatory for their excellent support.",
  "eventId": "GRB 230815A",
  "subject": "GRB230815A: BOOTES-6/DPRT optical upper limit ",
  "submitter": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
  "bibcode": "2023GCN.34441....1F",
  "createdOn": 1692135053727,
  "circularId": 34441
}