07/03/03 48821 CTB Converted to XML format This relation is used to identify the engineering telemetry received from CCS that must be converted into either FGS or AST eng files. The type of telemetry is identified by the field eng_type. Certain telemetry items are passed on in raw form and the raw_flag is used to identify these items. The telemetry files used eng_number rather than ccs_number. The name of the telemetry is found in the eng_telem_name table by joining on the eng_number. C3 Either FGS or AST, for FGS obslogs or astrometry, respectively. I4 A positive value less than 64K defined by CCS for every unique telemetry item in the engineering warehouse. It is the Numeric ID described in the definition of FOF elements (see Appendix A of HST-ICD-T2). I4 A small positive value used only in FGS or AST eng files. C1 Y -- only use raw value, N -- use engineering value. C1 Y -- change-only item, N -- all-points item. ENG_TELEMETRY_TYPE ENG Telemetry Definition Relation OPUS unique clustered nonclustered