GCN Circular 471
Bradley E. Schaefer (Yale) reports: "I have obtained new B-, R- and K-band images which show the revised RXTE position (J2000 05:09:31 +11:18:36), with no optical transient apparent in a comparison with the Digital Sky Survey. The start time of the R-band image is 17 December 07:47 UT. The R-band image shows stars which are much fainter than the limit of the DSS. As always, I can identify stars in the error box for which a [weak] case could be made that the source should be visible on the DSS whereas it is not - but no such cases suggests any confidence. The RXTE position is now too low in the sky to take any further images from CTIO. The source identified by Garnavich et al. (GCN 469) is seen in our earlier R and I images as a red star missing from our U, B, and V images. In an earlier notice (GCN 468), the new RXTE position was just outside the old field-of-view. Also, the start times of the exposures were stated in local time not UT, so the actual start time was 4:45 UT on 17 December (12.7 hours after the burst)."