The mean equator mean equinox coordinate
system evaluated at the beginning of the Besselian year 1950 (31
December 1949 22:09:46.866 = JD 2433282.4234591).
| Name |
Dimension |
Type |
Description |
| Time |
DateFormat |
Real Number |
Time. |
| Mean
Semi-major Axis |
DistanceUnit |
Real Number |
Semi-major axis computed from mean elements
associated with the specified mean element theory. If the elements
associated with the mean theory do not include semi-major axis, it
is computed from the elements associated with the mean element
theory using normal osculating orbit element conversions. |
| Mean
Eccentricity |
Unitless |
Real Number |
Eccentricity computed from mean elements associated
with the specified mean element theory. If the elements associated
with the mean theory do not include eccentricity, it is computed
from the elements associated with the mean element theory using
normal osculating orbit element conversions. |
| Mean Inclination |
AngleUnit |
Real Number |
Inclination computed from mean elements associated
with the specified mean element theory. If the elements associated
with the mean theory do not include inclination, it is computed
from the elements associated with the mean element theory using
normal osculating orbit element conversions. |
| Mean RAAN |
LongitudeUnit |
Real Number |
Right ascension of the ascending node computed from
mean elements associated with the specified mean element theory. If
the elements associated with the mean theory do not include RAAN,
it is computed from the elements associated with the mean element
theory using normal osculating orbit element conversions. |
| Mean Arg of
Perigee |
AngleUnit |
Real Number |
Argument of periapsis computed from mean elements
associated with the specified mean element theory. If the elements
associated with the mean theory do not include argument of
periapsis, it is computed from the elements associated with the
mean element theory using normal osculating orbit element
conversions. |
| Mean Mean
Anomaly |
AngleUnit |
Real Number |
Mean anomaly computed from mean elements associated
with the specified mean element theory. If the elements associated
with the mean theory do not include mean Anomaly, it is computed
from the elements associated with the mean element theory using
normal osculating orbit element conversions. |
| Mean Nodal
Period |
TimeUnit |
Real Number |
Mean nodal period computed based on the mean
element rates for the specified mean element theory. Nodal period
is defined time between consecutive crossings of the ascending
node. |
| Mean Arg of
Latitude |
AngleUnit |
Real Number |
Argument of latitude computed from mean elements
associated with the specified mean element theory. If the elements
associated with the mean theory do not include argument of
latitude, it is computed from the elements associated with the mean
element theory using normal osculating orbit element
conversions. |
| Mean
Longitude of Perigee |
LongitudeUnit |
Real Number |
Longitude of perigee computed from mean elements
associated with the specified mean element theory. If the elements
associated with the mean theory do not include longitude of
perigee, it is computed from the elements associated with the mean
element theory using normal osculating orbit element
conversions. |
| Mean Mean
Longitude |
LongitudeUnit |
Real Number |
Mean longitude computed from mean elements
associated with the specified mean element theory. If the elements
associated with the mean theory do not include mean longitude, it
is computed from the elements associated with the mean element
theory using normal osculating orbit element conversions. |