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   NAIF SCLK kernel files supply CSPICE SCLK conversion functions with
   information required to convert between SCLK values and other
   representations of time. Typically, a NAIF SCLK kernel will describe the
   clock of a single spacecraft.
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   Before calling any of the functions to encode or decode SCLK, or convert
   between SCLK and other time systems, an application program must load
   the contents of the SCLK kernel file into the kernel pool, using the