{
  "bibcode": "2023GCN.33237....1G",
  "body": "Rahul Gupta, Amit K. Ror, S. B. Pandey, A. Aryan, A. Ghosh, Kiran Wani,\nDimple, and K. Misra (ARIES) report:\n\nWe observed the fast optical transient ZTF23aabmzlp/AT2023azs discovery by\nZwicky Transient Facility (Andreoni et al. 2023, GCN 33229) using the 1.3m\nDevasthal Fast Optical Telescope (DFOT) located at the Devasthal\nobservatory of Aryabhatta Research Institute of Observational Sciences\n(ARIES), Nainital, India. We have taken multiple frames having an exposure\ntime of 120 sec in the R filter. We stacked the images after the alignment.\nWe clearly detected the ZTF23aabmzlp/AT2023azs in the stacked image. The\nestimated preliminary magnitude is the following:\n\n\nDate_Start_UT    T_start-T0 (days)  Filter  Exp time (sec)       Magnitude\n==============================================================\n2023-01-28 18:42:44   ~0.52           R        120 sec*10            20.21\n+/- 0.07\n\n\nWhere T0 is the ZTF first detection time of the transient. Our optical\ndetection is consistent with Kumar et al. 2023, GCN 33230. The temporal\ndecay behaviour of ZTF23aabmzlp/AT2023azs suggests an afterglow candidate,\nalthough multiwavelength follow-up observations are required to confirm.\n\nThe magnitude is not corrected for the Galactic extinction in the direction\nof the transient. Photometric calibration is performed using the standard\nstars from the USNO-B1.0 catalog.\n\nThis circular may be cited.",
  "circularId": 33237,
  "createdOn": 1675106774000,
  "email": "rahulbhu.c157@gmail.com",
  "subject": "ZTF23aabmzlp/AT2023azs: 1.3m DFOT optical observations",
  "submitter": "Rahul Gupta at ARIES, India  <rahulbhu.c157@gmail.com>",
  "eventId": "ZTF23aabmzlp"
}