| TICTOC User's Guide |
Table of ContentsTICTOC User's Guide Abstract Summary TICTOC User's Guide
Abstract
Summary
These routines convert between UTC and ET representations of time:
TICTOC requires a leapseconds kernel to run; an example leapseconds kernel, 'cook_01.tls' exists in the CSPICE data directory. The following is a sample session of a TICTOC execution. Please note: FORTRAN and C versions of the program may output numerical values in slightly different formats. It is assumed the kernel files used by TICTOC exist in the current directory (i.e. the directory from which your execute TICTOC). This particular session was run on an Intel box using the LINUX operating system.
Welcome to TICTOC
This program demonstrates the use of the CSPICE
time conversion utility routines: str2et_c and et2utc_c.
Enter the name of a leapseconds kernel file: cook_01.tls
Working ... Please wait.
Example UTC time : 9 JAN 1986 03:12:59.22451
Corresponding ET : -441103565.591323
UTC calendar format : 1986 JAN 09 03:12:59.225
UTC day of year format: 1986-009 // 03:12:59.225
UTC Julian date format: JD 2446439.634
Continue? (Enter Y or N): Y
Example UTC time : 1/9/86 3:12:59.22451
Corresponding ET : -441103565.591323
UTC calendar format : 1986 JAN 09 03:12:59.225
UTC day of year format: 1986-009 // 03:12:59.225
UTC Julian date format: JD 2446439.634
Continue? (Enter Y or N): Y
Example UTC time : 86-365//12:00
Corresponding ET : -410313544.816091
UTC calendar format : 1986 DEC 31 12:00:00.000
UTC day of year format: 1986-365 // 12:00:00.000
UTC Julian date format: JD 2446796.000
Continue? (Enter Y or N): Y
Example UTC time : JD 2451545
Corresponding ET : 57.183927
UTC calendar format : 2000 JAN 01 12:00:00.000
UTC day of year format: 2000-001 // 12:00:00.000
UTC Julian date format: JD 2451545.000
Continue? (Enter Y or N): Y
Example UTC time : 77 JUL 1
Corresponding ET : -710164751.815897
UTC calendar format : 1977 JUL 01 00:00:00.000
UTC day of year format: 1977-182 // 00:00:00.000
UTC Julian date format: JD 2443325.500
Continue? (Enter Y or N): Y
Example UTC time : 1 JUL '29
Corresponding ET : 930830457.184117
UTC calendar format : 2029 JUL 01 00:00:00.000
UTC day of year format: 2029-182 // 00:00:00.000
UTC Julian date format: JD 2462318.500
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