TITLE: GCN GRB OBSERVATION REPORT NUMBER: 950 SUBJECT: GRB 010214: X-Ray afterglow DATE: 01/02/20 15:50:12 GMT FROM: Angelo Antonelli at Obs. Astro. di Roma F. Frontera, C. Guidorzi, Universita' di Ferrara, Ferrara; L.A. Antonelli, Osservatorio Astronomico di Roma, Rome; G. Tassone, D. Ricci, L. Bruca, BeppoSAX Science Operations Center, Telespazio, Rome; M. Capalbi, BeppoSAX Science Data Center, Rome; R. Kaptein, E. Kulkeers, Space Research Organization Netherlands, Utrecht and L. Piro, Istituto di Astrofisica Spaziale, CNR, Rome; report: "GRB 010214 (another ``Valentine's Day Burst'') was observed with the Narrow Field Instruments (NFI) on board BeppoSAX from Feb. 14.62 to Feb. 16.52 UT (starting about 6 hrs after the burst trigger time; Gandolfi, GCN #933) . In the 2-10 keV image from MECS units 2 and 3, a fading point source (1SAX J174058+4834.6) is detected within the WFC error circle (Gandolfi GCN #933). The source position is R.A. = 17h40m58s, Decl. = +48d34'37" (Eq. 2000) with 1 arcmin error radius. The centroid position is consistent with the preliminary NFI analysis reported by Gandolfi (GCN #937). In the first 12,000 s the source had a 2-10 keV flux of about 6E-13 erg/cmE2/s, while a 2-sigma upper limit of about 5e-14 erg/cmE2/s was derived in the last part of the observation. We conclude that 1SAX J174058+4834.6 is the X-ray afterglow of GRB 010214. The source fading appears faster than usual, with a power-law index of about 1.6." This message may be cited.