GRB 230812B: Iota Scorpii Observatory, La Spezia, Italy
Abstract
I have 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; Moskvitin & Spiridonova GCN 34406; Leonini et al. GCN 34408; de Ugarte Postigo et al. GCN 34409; de Ugarte Postigo et al. GCN 34410; Belkin et al. GCN 34412; Ruocco et al. GCN 34413; Frederiks et al. GCN 34414; Ruocco et al. GCN 34415; Shrestha et al. GCN 34416; Quadri et al. GCN 34417; Adami et al. GCN 34418; Moretti et al. GCN 34419; Kumar et al. GCN 34420; Belkin et al. GCN 34421 & GCN 34423; Pyshna et al., GCN 34425) with my 0.40-m Ritchey-Cretien telescope. The observations started 1660 min after the GRB trigger, at the end of twilight, with a Ritchey Cretien D=406 mm with reducer F/D=6,15. Weather conditions were good. Add 12 x 300 sec. unfiltered images on August 13 2023, from 20:26:35 to 21:21:42 UT Start T0+ End T0+ R lim 1660 min 1735 min 20 I confirm a fading afterglow The results of photometry are: JD mag Err Flt 2460170.36555307 19.85 +/- 0.2 CLEAR Magnitudes were estimated with the Atlas catalog and are not corrected for galactic dust extinction. Reference: http://www.iotascorpiiobservatory.it The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- August 2023
- Bibcode:
- 2023GCN.34436....1S