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GCN Circular 32251

Subject
GRB 220623A: BOOTES-5/JGT optical afterglow detection
Date
2022-06-23T17:57:34Z (2 years ago)
From
Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>
Y.-D. Hu, E. Fernandez-Garcia, I. Perez-Garcia, A. J. Castro-Tirado, M.D. Caballero-Garcia, R. Sanchez-Ramirez (IAA-CSIC), D. Hiriart and W. H. Lee (UNAM), C. J. Perez del Pulgar and I. Carrasco (UMA), I. H. Park (SKKU) on behalf of a larger collaboration, report:

Following the detection of GRB 220623A by both Swift (Sbarufatti et al. GCNC 32243), AstroSat (Gopalakrishnan et al. GCNC 32246) and AGILE (Ursi et al. GCNC 32247), the 60cm BOOTES-5/JGT robotic telescope at Observatorio Astronomico Nacional in San Pedro Martir (Mexico) automatically responded to the burst on June 23 at 07:05:03 UT (i.e. ~ 47 s after trigger). In the first 1 s exposure image, an optical afterglow is detected at the enhanced Swift-XRT position (Beardmore et al. GCNC 32248) with a preliminary magnitude of 17.1 +- 0.2 mag (clear filter). Further observations are ongoing and encouraged.

We thank the staff at San Pedro Martir Observatory for their excellent support.
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