TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1023 SUBJECT: GRB010222, CXO X-ray observations DATE: 01/03/26 20:19:23 GMT FROM: Fiona Harrison at CalTech F. A. Harrison, S. A. Yost, S. R. Kulkarni report on behalf of a larger collaboration: We observed the field containing GRB010222 with Chandra ACIS for 17 ksec, beginning on March 3.44 UT. We detect an X-ray source within 1" of the position of the optical transient (GCN 961, 962) 14:52:12.55 43:01:06.26 (J2000) and consistent with the X-ray transient detected by the BeppoSAX NFI (GCN 966). Preliminary analysis shows a 2-10 keV X-ray flux of 7.2e-14 erg/cm2/s for this source. This message may be cited.