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Observation 1
Feature(s)	Io transit
Filter(s)	R
Date	2020-09-28 09:37:00
Julian day	2459120.9006944443
System I	132.87°
System II	249.91°
System III	347.22°
Illumination	99.0%
Phase angle	11.100000381469727°
Solar longitude	18.4°
Eq. diameter	40.6″
Derotation	3.0 min