Earth-Moon state from the AstroGeo22 model at a given age

Usage

astrogeo22(age_ma, interpolate = TRUE, data_dir = NULL)

age_ma: Age(s) in Ma at which the Earth-Moon state is returned (numeric vector, 0 to 4429; one output row per value). Ages outside the table give NA when interpolate=TRUE. Required, no default.
interpolate: How values are taken from the 1-Myr rows of the AstroGeo22 table (logical): TRUE interpolates linearly between rows, FALSE takes the nearest row (as calculate_orbit9.m of Acycle does). Default=TRUE.
data_dir: Folder that contains the file AstroGeo22.txt (character path); NULL uses the copy installed with the package (or the folder set with options(cocoR.data = ...)). Default=NULL.

data.frame: age_ma, a_RE, a_km, lod_h, obliquity_deg, p_arcsec, p_kyr and the model's min/max envelope for each