Level 2 Help for EPHEMERIS

OBJECT

The body being viewed.


VIEWER

The body from which one is viewing


EPOCH

The viewers date and time in GMT.
Valid date and time strings are:

             EPOCH STRING                   TRANSLATION
             ----------                   -----------
 
        '1/9/1986 3:12:59.2   '    (  9 JAN 1986 03:12:59.2 )
        '1 9 1986 3,12,59.2   '    (  9 JAN 1986 03:12:59.2 )
        '2 jan 1991 3:00 12.2 '    (  2 JAN 1991 03:00:12.2 )
        '1991 MAR 10 12:00:00 '    ( 10 MAR 1991 12:00:00   )
        '29 February 1975 3:00'    (  1 MAR 1975 03:00:00   )
        '2010 October 29 3:58 '    ( 29 OCT 2010 03:58:00   )
        'dec 31 1986 12       '    ( 31 DEC 1986 12:00:00   )
        '1986-365 // 12       '    ( 31 DEC 1986 12:00:00   )
        'JUL 1977             '    (  1 JUL 1977 00:00:00   )
        'JD 2451545.          '    (  1 JAN 2000 12:00:00   )
        'jd 2451545.          '    (  1 JAN 2000 12:00:00   )
        'JD2451545.           '    (  1 JAN 2000 12:00:00   )
 
For the convenience of the solar xray stereo mission the following time is
also permitted:
 asfd19920112044820a.vic
 with the time-stamp:  yyyymmddhhmmss



SPICEFILE

The name of the solar system spice sp kernel. Defaults to:
/project/spice/ops/generic_kernels/spk/de405.bsp.
This is a binary kernel operating under solaris operating system.
It is assumed that the LEAPSECONDS and CONSTANTS kernels are defined by
these 2 logical names and exist in the standard GLL spice directory.