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Observation 1
Feature(s)	GRS Oval BA Ganymede
Filter(s)	ch4
Date	2018-06-22 09:25:12
Julian day	2458291.892361111
System I	15.78°
System II	353.38°
System III	229.69°
Illumination	99.5%
Phase angle	7.9°
Solar longitude	311.2°
Eq. diameter	42.32″
Derotation	10.0 min