GCN Circular 7198

P. Schady (MSSL-UCL) and B. Sbarufatti (INAF-IASF PA) report on behalf of 
the Swift UVOT team:

Swift UVOT started a ToO observation of the INTEGRAL burst GRB080120 at 
2008-01-20T19:50 UT, ~2.4hrs after the INTEGRAL trigger (Mereghetti et 
al., GCN 7194
Not found
 
 
). Observations were taken in the white and v-band only. A 
new source is detected within the XRT error circle (Sbarufatti & Mangano, 
GCN7195
Not found
 
 
), in co-added images in both these filters at

RA: 15:01:03.276
DEC: -10:52:29.79

with an uncertainty of 0.6 arcsec (90% confidence). This is consistent 
with the position reported by Kruehler et al. (GCN 7197
Not found
 
 
). The source is 
seen to decay in the white band and has the following magnitudes and 
3-sigma upper limits (in the UVOT photometric system,Breeveld et al., GCN 
Circ. 6614
Not found
 
 
)

Filter    Tstart   Exp      Magnitude
            (s)     (s)
white     9257     401      21.45 +/- 0.39
white     14524    679      > 22.08
v         8490     746      20.45 +/- 0.41
v         13232    126      20.53 +/- 0.33

The values quoted above are not corrected for the expected non-negligible 
Galactic extinction corresponding to a reddening of E(B-V) = 0.10 mag in the 
direction of the burst (Schlegel et al. 1998).