{
  "body": "GRB 250129A: optical photometry from Konkoly \n\nJ. Vinko, A. Horti-David, R. Konyves-Toth, Zs. Bora, L. Kriskovics, A. Pal, R. Szakats \n(Konkoly Observatory, Hungary) \n\nWe report detection and photometry of the optical afterglow of GRB 250129A \n(Beardmore et al., GCN 39066) taken with the RC80 robotic telescope at Piszkesteto Station of Konkoly \nObservatory, Hungary. The observations started on 2025-01-29 23:35:21 UT, \n18.84 hours after the trigger. 5 sets of 300 sec frames were collected through \nSloan g', r'- and i' bands. The optical afterglow (Francile et al., GCN 39065; \nBeardmore et al., GCN 39066; Schneider et al., GCN 39071; Belkin et al., GCN 39072; \nIzzo et al., GCN 39073; Izzo & Malesani, GCN 39074; Gosh et al., GCN 39077; \nSchneider et al., GCN 39078; Brivio et al., GCN 39079; Siegel et al., GCN 39085; \nZheng et al. GCN 39090; Schlekat et al., GCN 39091; Antier et al., 39096; \nOdeh et al., GCN 39097; Ferro et al., GCN 39098; Bochenek et al., GCN 39099; \nMalesani et al., GCN 39100; Romanov, GCN 39101; Zheng & Filippenko, GCN 39102; \nWatson et al. GCN 39104) was detected on the stacked frames with the following magnitudes, \ncalibrated via nearby PS1 stars: \n\nDate UT-middle t-T0(days) Exp(s) g'(AB) r'(AB) i'(AB) \n2025-01-30 00:13:39 0.7849 5x300 20.32 (0.21) 19.29 (0.08) 19.12 (0.10) \n\nThe magnitudes above are not corrected for galactic extinction. \n\n",
  "submitter": "Jozsef Vinko at Konkoly Observator <vinko@konkoly.hu>",
  "circularId": 39105,
  "subject": "GRB 250129A: optical photometry from Konkoly",
  "bibcode": "2025GCN.39105....1V",
  "eventId": "GRB 250129A",
  "submittedHow": "email",
  "createdOn": 1738319010997
}