Abstract

   CSPICE_J2000 returns the value for the Julian Date of
   2000 JAN 01 12:00:00 (2000 JAN 1.5).

I/O

   Given:

      No input required.

   the call:

      [j2000] = cspice_j2000

   returns:

      j2000   the value 2451545.0, the Julian Date corresponding to
              2000 JAN 01 12:00:00 (2000 JAN 1.5).

              [1,1] = size(j2000); double = class(j2000)

Parameters

   None.

Examples

   Any numerical results shown for this example may differ between
   platforms as the results depend on the SPICE kernels used as input
   and the machine specific arithmetic implementation.

   1) Display the double precision value for the J2000 date.

      Example code begins here.


      function j2000_ex1()
         %
         % Display the J2000 date in 16.8 format
         %
         fprintf( 'J2000 date: %16.8f\n', cspice_j2000)


      When this program was executed on a Mac/Intel/Octave6.x/64-bit
      platform, the output was:


      J2000 date: 2451545.00000000

Particulars

   The function always returns the constant value shown above.

Exceptions

   Error free.

Files

   None.

Restrictions

   None.

Required_Reading

   MICE.REQ
   TIME.REQ

Literature_References

   None.

Author_and_Institution

   J. Diaz del Rio     (ODC Space)
   E.D. Wright         (JPL)

Version

   -Mice Version 1.1.0, 10-AUG-2021 (EDW) (JDR)

       Edited the -Examples section to comply with NAIF standard. Added
       example's problem statement.

       Added -Parameters, -Exceptions, -Files, -Restrictions,
       -Literature_References and -Author_and_Institution sections, and
       completed -Particulars section.

       Eliminated use of "lasterror" in rethrow.

       Removed reference to the function's corresponding CSPICE header from
       -Required_Reading section.

   -Mice Version 1.0.1, 11-JUN-2013 (EDW)

       -I/O descriptions edits to conform to Mice documentation format.

   -Mice Version 1.0.0, 22-NOV-2005 (EDW)

Index_Entries

   julian date of 2000 jan 1.5