GRB 231215A: AKO Optical Upper Limit
Abstract
We used our 0.36m f/7.7 robotic telescope to observe the field of GRB 231215A, which was detected by Swift (D'Avanzo et al., GCN 35343), and its optical counterpart was detected by (Pankov et al., GCN 35349; Sasada et al., GCN 35351; An et al., GCN 35353; Wagh et al., GCN 35354). The observation was done on 15 December starting at 20:07:36 UT, which corresponds to 10.34 hours after the GRB trigger time, using an (Ic) filter. We obtained 17x180s images, and we didn't detect a credible source within the uncertainty radius of the Swift-XRT position (Goad et al., GCN. 35357). The following 5-sigma upper limit is calculated using the ATLAS catalog as a reference: Ic = 18.8 The magnitude is not corrected for Galactic extinction.
- Publication:
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GRB Coordinates Network
- Pub Date:
- December 2023
- Bibcode:
- 2023GCN.35362....1O