GCN Circular 2957
A. de Ugarte Postigo, A. Sota, M. Jel�nek, J. Gorosabel, A. J. Castro-Tirado (IAA-CSIC, Granada) and J. M. Castro Cer�n (U. Copenhagen) report: The refined SWIFT/XRT error box (Hill et al. GCN 2955) for GRB 050117 (Sakamoto et al. GCN 2952) has been observed with the 1.5 m telescope at the Observatorio de Sierra Nevada in Granada, southern Spain. I-band (6 x 300 s) images were acquired starting on 17 Jan, 18:30 UT (i.e. about 5.6 hr after the GRB trigger). No new sources within the error box are found when comparing with the DSS-2 plates down to I = 20.5 . Near-IR images -specially in the K-band- would be required in order to indentify the afterglow at these wavelengths, as there is severe extinction in the line of sight (A_I = 3.40; A_K = 0.65). This has been also pointed out by Torii (GCN 2956). This message can be quoted.