astrotypes  0.0
J2000Clock.h
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24 #ifndef PSS_ASTROTYPES_UNITS_J2000CLOCK_H
25 #define PSS_ASTROTYPES_UNITS_J2000CLOCK_H
26 
27 #include "JulianClock.h"
28 
29 namespace pss {
30 namespace astrotypes {
31 namespace units {
32 
40 PSS_UNITS_DEFINE_CLOCK(J2000Clock, julian_day(JulianClock::diff_from_system_epoch.count() - 2451545), J2000, false);
41 
42 } // namespace units
43 } // namespace astrotypes
44 } // namespace pss
45 
46 #endif // PSS_ASTROTYPES_UNITS_J2000CLOCK_H
PSS_UNITS_DEFINE_CLOCK(J2000Clock, julian_day(JulianClock::diff_from_system_epoch.count()-2451545), J2000, false)
a std::chrono compatible clock representing the J2000 epock
J2000Clock::time_point J2000
Definition: Time.h:48
std::chrono::duration< double, std::ratio< 86400 > > julian_day
representation of julian time is in days
Definition: JulianClock.h:39