GCN Circular 34395
WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report on behalf of the KAIT GRB team: The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at Lick Observatory, responded to GRB 230812B (The Fermi GBM team, GCN 34386) starting at Aug. 13, 04:42:53 UT. We detected an uncataloged optical afterglow candidate not shown in SDSS archive at position of (error ~0.5"): RA: 16:36:31.52 (J2000) Dec: +47:51:32.24 (J2000) This position is about 7.4 arcsec to the improved Swift/XRT localization (Page et al., GCN 34393), which is slightly outside its estimate 3.7 arcseconds error radius. We measure the target is ~18.7 in out clear band image at ~9.75 hours after burst. We can not estimate the variability at this time, further observations are encouraged.