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Observation 1
Feature(s)	GRS Callisto
Filter(s)	ch4
Date	2017-06-12 11:54:18
Julian day	2457916.995833333
System I	323.08°
System II	281.19°
System III	57.72°
Illumination	99.0%
Phase angle	9.899999618530273°
Solar longitude	282.7°
Eq. diameter	39.44″
Derotation	5.0 min