Function transform_from_epoch 

pub fn transform_from_epoch(
    position: TerrestrialPositionM,
    velocity: TerrestrialVelocityMPerYear,
    position_epoch_year: f64,
    from: TerrestrialFrame,
    to: TerrestrialFrame,
    transform_epoch_year: f64,
) -> Result<TerrestrialState, FrameCatalogError>

Propagate a station to a transform epoch, then transform it between frames.