{
  "bibcode": "2022GCN.31754....1K",
  "body": "A. Klotz (CNRS-OMP-IRAP),\nM. Fortune, R. Augerai (Universite de la Renuion),\nP. Thierry�� (AGORA),\nL. Eymar, S. Antier, M. Boer, A. de Ugarte Postigo (CNRS-OCA-ARTEMIS),\n\nWe analyzed archive images of the SWIFT trigger 1061223 (GRB 210722A,\nBAT detection by D'Avanzo et al. GCN Circ. 30475,\nearly optical ground observations by Zhu et al. GCN Circ. 30476,\nredshift by Thoene et al. GCN Circ. 30487)\nwith the TAROT robotic telescope (D=18cm) located\nat Les Makes Observatory, Reunion Island, France.\n\nImages were acquired without any filter, camera FLI PL16803\nand Takahashi Epsilon 180ED.\n\nAccording the reference star NOMAD-1 0836-0016935 R=12.57\nwe give the photometry of the GRB optical transient:\n\nt1(s) t2(s)�������� R�� dmag\n ��2170�� 2935 16.08�� 0.16\n ��2944�� 4067 16.24�� 0.12\n ��4074�� 4653 16.78�� 0.14\n ��4659�� 5238 16.60�� 0.14\n ��5244�� 6744 17.04�� 0.22\n\nt1 and t2 are start and stop acquisition since the trigger.\n\nMagnitudes are not corrected for Galactic dust extinction.",
  "circularId": 31754,
  "createdOn": 1647209519000,
  "email": "Alain.Klotz@free.fr",
  "subject": "GRB 210722A: TAROT Reunion observatory optical light curve",
  "submitter": "Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz@free.fr>",
  "eventId": "GRB 210722A"
}