TITLE: GCN GRB OBSERVATION REPORT NUMBER: 964 SUBJECT: GRB010214B,Gamma Ray Observations DATE: 01/02/22 14:01:49 GMT FROM: Srikanta Sinha at ISRO/ISAC S.Sinha,P.Sreekumar,K.Kasturirangan, on behalf of SROSS C-2 (INDIAN GRB EXPERIMENT)team report: SROSS C-2 observed this burst at 49981.001 UT (this time is not corrected for small systematic errors). As observed by SROSS C-2 ,it had a duration (T90) of 14.92 +-0.06 secs. Its fluence in the 20-100 keV band is equal to 5.39.10-6 +-1.53.10-7 ergs cm-2 and in the 100-1024 keV band is equal to 1.74.10-5 +-1.23.10-6 ergs cm-2 respectively. These fluences are not corrected for the sec(theta) factor since its direction is unknown to us. The peak flux(256 ms) in the 20-100 keV band is 9.66 photons cm-2 sec-1 and the peak flux (256 ms) in the 100-1024 keV band is equal to 12.20 photons cm-2 sec-1. The hardness ratio for this burst (when the signal peaks in the 100-1024 keV channel) is equal to 0.69+- 0.13. Our hardness ratio is defined as [counts(100-1024 keV)/counts(20-100 keV)]. This message is citable. -Srikanta Sinha, on behalf of the SROSS C-2 (INDIAN GRB EXPT.TEAM) at the Technical Physics Division, ISRO Satellite Center, Bangalore-560 017, INDIA