Comments: Io and shadow smeared by derotation

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Observation 1
Feature(s)	N/A
Filter(s)	color
Date	2021-08-16 13:41:40
Julian day	2459443.070138889
System I	14.431414°
System II	208.5777°
System III	31.029476°
Illumination	100.0%
Phase angle	0.8999999761581421°
Solar longitude	46.3°
Eq. diameter	49.03″
Derotation	72.0 min