GRB 230812B: SAO RAS optical observations
Abstract
We observed the field of GRB 230812B (Lesage et al., GCN 34387; Scotton et al., GCN 34392; Page, GCN 34394; Zheng & Filippenko, GCN 34395; Lipunov et al., GCN 34396; Salgundi et al., GCN 34397; Ackley et al., GCN 34398; Xiong et al., GCN 34401; Casentini et al., GCN 34002; Frederiks et al., GCN 34403; Mao et al., GCN 34404; Odeh et al., GCN 34405) with the 1-m telescope of SAO RAS Zeiss-1000 equipped with the CCD photometer. We obtained 3 x 300 sec. images in Rc band on August 13, 20:14:15--20:31:46 UT under mediocre weather conditions. The OT is clearly detected in our stacked frame with the brightness of R = 20.45 +/- 0.07 (t_mid - t0 = 1.0589 days). This preliminary photometry is based on the nearby SDSS stars; magnitudes are converted using Lupton (2005) equations.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- August 2023
- Bibcode:
- 2023GCN.34406....1M