  Even though it was not designed as an exoplanetary research mission, the Deep
Space Climate Observatory (DSCOVR) has been opportunistically used for a novel
experiment, in which Earth serves as a proxy exoplanet. More than two years of
DSCOVR Earth images were employed to produce time series of multi-wavelength,
single-point light sources, in order to extract information on planetary
rotation, cloud patterns, surface type, and orbit around the Sun. In what
follows, we assume that these properties of the Earth are unknown, and instead
attempt to derive them from first principles. These conclusions are then
compared with known data about our planet. We also used the DSCOVR data to
simulate phase angle changes, as well as the minimum data collection rate
needed to determine the rotation period of an exoplanet. This innovative method
of using the time evolution of a multi-wavelength, reflected single-point light
source, can be deployed for retrieving a range of intrinsic properties of an
exoplanet around a distant star.
