1:1 Satellite imagers use the refulgence and colours of sunlight reflecting off our planet to track weather, crop health, algal blooms and much more.
1:2 Each imager gets calibrated against a common source, our Moon.
1:3 Our Moon has no atmosphere and its surface changes very little, thus making it a convenient target to calibrate with.
1:4 However, the refulgence of the Moon, the amount of sunlight reflecting off the surface of the Moon, changes based on its angle to our Sun and our planet.
1:5 Our philosophers have calculated the Moon's refulgence with uncertainties of a few percent.
1:6 Uncertainties of a few percent is not good enough for the most sensitive measurement needs.
1:7 I measure the refulgence of our inconstant Moon, with uncertainties of much less than one percent.
1:8 At the subaerial Gora Dolga Observatory, I use a small telescopes with a lens made of a compound of calcium fluoride.
1:9 The lens of calcium fluouride compound, focuses the wide range of moonlight wavelengths, from ultraviolet radiation through the visible spectrum into short-wave infrared, into a detector.
1:10 I calibrate my telescope nightly with a broadband light source and a tunable narrow band light source at the Observatory campus.
1:11 Dozens of satellite operators use my data set of measurements.
