  Solar irradiance variability has been monitored almost exclusively from the
Earth's perspective. {We present a method to combine the unprecedented
observations of the photospheric magnetic field and continuum intensity from
outside the Sun-Earth line, which is being recorded by the Polarimetric and
Helioseismic Imager on board the Solar Orbiter mission (SO/PHI), with solar
observations recorded from the Earth's perspective to examine the solar
irradiance variability from both perspectives simultaneously.} Taking SO/PHI
magnetograms and continuum intensity images from the cruise phase of the Solar
Orbiter mission and concurrent observations from the Helioseismic and Magnetic
Imager onboard the Solar Dynamics Observatory (SDO/HMI) as input into the
SATIRE-S model, we successfully reconstructed the total solar irradiance
variability as apparent from both perspectives. In later stages of the SO
mission, the orbital plane will tilt in such a way as to bring the spacecraft
away from the ecliptic to heliographic latitudes of up to $33^{\circ}$. The
current study sets the template for the reconstruction of solar irradiance
variability as seen from outside the ecliptic from data that SO/PHI is expected
to collect from such positions. {Such a reconstruction will be beneficial to
factoring inclination into how the brightness variations of the Sun compare to
those of other cool stars, whose rotation axes are randomly inclined.
