TITLE: GCN CIRCULAR NUMBER: 7759 SUBJECT: GRB 080514B: UVOT Observations DATE: 08/05/21 14:07:20 GMT FROM: Stephen Holland at USRA/NASA/GSFC/SSC S. T. Holland (CRESST/USRA/GSFC) reports on behalf of the Swift/UVOT team: The Swift/UVOT observed the field of GRB 080514B starting 37,005 s after the SuperAGILE/IPN detection (Rapisarda et al., GCN Circ. 7715). We detect the optical afterglow in the b, u, uvw1, and uvm2 filters at the location of the IAC80 optical afterglow (de Ugarte Postigo, et al., 2008, GCNC 7719). The UVOT source position is RA(J2000.0) = 21:31:22.71 Dec(J2000.0) = +00:42:28.4 with an estimated uncertainty of +/-0.60 arcsec (radius, 90% confidence). Magnitudes and upper limits are reported below. Filter T_start (s) T_stop Exposure Mag Err Comment v 38,184 43,906 352 >20.1 3-sigma UL b 37,449 48,630 559 20.92 0.27 u 37,229 48,415 559 19.97 0.17 uvw1 37,005 48,198 1118 20.74 0.24 uvm2 38,333 44,537 1030 20.83 0.32 uvw2 37,601 49,441 2199 >22.1 3-sigma UL white 209,879 228,394 5360 >23.3 3-sigma UL The above magnitudes and upper limits are not corrected for the Galactic extinction along the line of sight corresponding to a reddening of E_{B-V} = 0 .06 mag (Schlegel et al., 1998, ApJS, 500, 525). The photometry is on the UVOT flight system described in Poole et al. (2008, MNRAS, 383,627). The non-detections in the uvw2 filters may indicate that the redshift is z >~ 1.9.