{
  "createdOn": 1724629244395,
  "submittedHow": "web",
  "bibcode": "2024GCN.37291....1L",
  "submitter": "Simone Leonini at Montarrenti Observatory (Siena, Italy) <s.leonini@iol.it>",
  "eventId": "GRB 240825A",
  "body": "S. Leonini, M. Conti, P. Rosi, L.M. Tinjaca Ramirez (Montarrenti Observatory, Siena, Italy, part of UAI/SSV-GRB section), M.G. Dainotti (National Astronomical Observatory of Japan), Y. Niino (Tokyo University, Institute of Astronomy), K. Kalinowski (Aarhus University, Department of Physics and Astronomy) and B. De Simone (Università degli Studi Di Salerno) report:\n\nWe observed the field of GRB 240825A (Swift trigger 1250617, Gupta et al., GCN 37274; Fermi/GBM trigger 746293985.085054 / 240825662, GCN 37273) with the automated and remoted 0.53m Ritchey-Chretien telescope at Montarrenti Observatory (Siena, Italy, IAU code C88).\n\nThe observations were started at 2024-08-25 21:12:38 UT (approximately 5.5 hours after burst) stacking 50x40s Rc-band CCD images.\n\nThe OT was detected at the following position:\n\nRA    (J2000.0)  22h 58m 17.26s  +/-0.05 \nDecl. (J2000.0) +01° 01' 37.5\"   +/-0.13\n\nPreliminary photometry was obtained using nearby PanSTARRS stars as follows: \n\n    MJD      Filter     Mag.       Err.\n60548.39591    Rc       19.81    +/-0.10\n\nMagnitude was calibrated with the nearby PanSTARRS stars converted using Lupton (2005) equations. No correction for galactic dust extinction was applied.\n\nOur observations are consistent with other already reported (Jiang et al., GCN 37275; Dutton et al., GCN 37276; Odeh et al., GCN 37277; Zhang et al., GCN 37278; Li et al., GCN 37280; Izzo et al., GCN 37287).\n\nFurther observations are ongoing. \n",
  "subject": "GRB 240825A: Montarrenti Observatory optical observations",
  "circularId": 37291,
  "format": "text/plain"
}