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ORBITAL DATA
Period
P flag
d = days
y = years
c = centuries (rarely used)
Semi major ax
A flag
a = arcseconds
m = milliarcseconds (mas)
Inclination
Node
N flag
descending node
Periastron
T flag
d = modified Julian date
y = fractional Besselian year
Eccentricity
Lon per
Equinox
Double:
