FUNCTION c_readephem (satnum, year, month, day, eline)
long *satnum; long *year; long *month; long *day; char *eline;
The number of the satellite acquiring the pass (for example, 11 for NOAA-11).
The desired year of the ephemeris data (ie. 94 for 1994).
The desired month of the ephemeris data.
The desired day of the ephemeris data.
Line of ephemeris data in ASCII format (EPEM_SIZ bytes long).
The ephemeris files reside in ADAPSTABLES and have a "dat" suffix. The satellite number is used to determine which ephemeris file to read. Open this file and perform a binary search to locate the correct record of ephemeris data. Return a line of ephemeris data in ASCII format for the specified day.
c_readephem() returns
E_SUCC --> Successful completion E_FAIL --> Operation failed