GCN Circular 32521
N. J. Klingler (NASA-GSFC/UMBC/CRESST II) reports on behalf of the Swift-UVOT team: Swift-UVOT has performed follow-up observations of the Swift-BAT-detected burst GRB 220831A (Tohuvavohu et al. GCN 32506), collecting 4.7 ks of observations with the White filter between T0+51.2 ks and T0+78.8 ks. No source was detected in the UVOT data at the position of the X-ray source reported by Dichiara et al. (GCN 32510), which is also positionally coincident with the candidate near-infrared and optical counterparts reported by D'Avanzo et al. (GCN 32513) and Freeburn et al. (GCN 32516), respectively. 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) are: Filter T_start(s) T_stop(s) Exp(s) Mag white 51227 78844 4712 >23.39 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.0161684 in the direction of the burst (Schlegel et al. 1998).