TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1746 SUBJECT: GRB 021201, optical observations DATE: 02/12/13 04:25:28 GMT FROM: Peter Garnavich at U of Notre Dame P. Garnavich and J. Quinn (University of Notre Dame) We observed the entire error box of the GRB 021201 burst (GCN 1719) with the NOAO WIYN telescope on 2002 Dec. 5.5 (UT). The 3x600s R-band images were taken in 1.2" seeing. We confirm the presence of a bright optical source near the Chandra x-ray source #10 (GCN 1741) identified by Castro Cerón et al. (GCN 1743). The optical source is USNO-A2.0 1050.05586294 listed in the catalog at 08:07:49.350 +21:12:33.66 (J2000) and R=18.9. We estimate the brightness at R=20.4 using a zero point from a nearby Landolt standard star field. To search for fainter objects, we subtracted a PSF scaled to the peak of the USNO star and found no other sources brighter than R=23.3 within 4" of the Chandra #10 x-ray position.