DREFFRAME) is signaled. 
 
   4)  If segment stop time is not greater then the begin time, 
       SPICE(BADDESCRTIMES) is signaled. 
 
   5)  If the input degree `polydg' is less than 0 or greater than
       MAXDEG, the error will be diagnosed by a routine in the call
       tree of this routine.
 
   6)  If the last non-blank character of `segid' occurs past index 40,
       or if `segid' contains any nonprintable characters, the error will
       be diagnosed by a routine in the call tree of this routin