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Observation 1
Feature(s)	GRS Io
Filter(s)	ir
Date	2021-09-01 11:36:42
Julian day	2459458.9833333334
System I	306.6451°
System II	19.353561°
System III	206.08226°
Illumination	99.9%
Phase angle	2.5999999046325684°
Solar longitude	47.8°
Eq. diameter	48.81″
Derotation	5.0 min