{
  "body": "A. S. Moskvitin (SAO RAS) and V. P. Goranskij (SAI MSU)\nreport on behalf of the GRB follow-up team.\n\nWe observed the field of the GRB 241030A (Klingler et al., GCN 37956;\nBeardmore et al., GCN 37962; Wang et al., GCN 37972; Pillera et al.,\nGCN 37979; Ridnaia et al., GCN 37982; Ambrosi et al., GCN 37988;\nWu et al., GCN 37997) with the 1-m telescope of SAO RAS, Zeiss-1000\nequipped with the CCD-photometer on October 30/31 night. We obtained\nseries of 300 and 600 sec. images in Rc band.\n\nThe OT (Klingler et al., GCN 37956; Watson et al., GCN 37957;\nFernández-Rodríguez et al., GCN 37958; Zheng et al., GCN 37959;\nAn et al., GCN 37960; Higuchi et al., GCN 37963; Qiu et al.,\nGCN 37965; Lin et al., GCN 37966; Wu et al., GCN 37970;\nBreeveld & Klingler, GCN 37974; Méndez-Lapido et al., GCN 37993)\nis clearly detected in our stacked frames. Preliminary photometry\ncalibrated against nearby Pan-STARRS stars (magnitudes converted\nwith Lupton 2005 equations) and not corrected by MW extinction:\n\ndate       UT_start--UT_end    t_mid-T0, h  exp., s   R_mag\nOct. 30    17:21:38--17:26:38  11.8392       6 x 300  18.72 +/- 0.04\nOct. 30    20:40:51--21:44:59  15.4145       6 x 600  19.09 +/- 0.06\nOct. 30/31 23:18:20--02:14:51  18.9756      15 x 600  19.36 +/- 0.04\n\nlist of used Pan-STARRS stars:\nR.A. (J2000) Decl. (J2000)  R_mag (Lupton 2005)\n343.156212740 80.434129340  14.119\n343.189894620 80.452656920  17.502\n343.155709870 80.466614280  16.501\n343.372455850 80.465046470  14.448\n\n",
  "createdOn": 1730394946299,
  "submitter": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
  "subject": "GRB 241030A: SAO RAS optical observations",
  "circularId": 38016,
  "eventId": "GRB 241030A",
  "bibcode": "2024GCN.38016....1M",
  "submittedHow": "email-legacy"
}