Table of contents
CSPICE_JYEAR returns the double precision value for the
number of seconds in a Julian year.
Given:
None.
the call:
jyear = cspice_jyear( )
returns:
jyear the number of seconds per julian year.
help, jyear
DOUBLE = Scalar
None.
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 number of seconds in a Julian year.
Example code begins here.
PRO jyear_ex1
;;
;; Display the number of seconds in a Julian Year, in
;; 16.3 floating point format
;;
print, format='("Seconds per Julian year: ",F16.3)', $
cspice_jyear()
END
When this program was executed on a Mac/Intel/IDL8.x/64-bit
platform, the output was:
Seconds per Julian year: 31557600.000
The julian year is often used as a fundamental unit of time when
dealing with ephemeris data. For this reason its value in terms of
ephemeris seconds is recorded in this function.
Error free.
None.
None.
ICY.REQ
TIME.REQ
[1] P. Kenneth Seidelmann (Ed.), "Explanatory Supplement to the
Astronomical Almanac," Page 8, University Science Books,
1992.
J. Diaz del Rio (ODC Space)
E.D. Wright (JPL)
-Icy Version 1.0.1, 01-JUN-2021 (JDR)
Edited the header to comply with NAIF standard. Added example's problem
statement and reformatted example's output.
Added -Parameters, -Exceptions, -Files, -Restrictions,
-Literature_References and -Author_and_Institution sections, and
completed -Particulars section.
Removed reference to the routine's corresponding CSPICE header from
-Abstract section.
Added argument's type and size information in the -I/O section.
-Icy Version 1.0.0, 16-JUN-2003 (EDW)
Number of seconds per julian year
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