Comments: Dark storm around the Great Red Spot.

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Observation 1
Feature(s)	GRS
Filter(s)	ir
Date	2021-09-04 22:28:00
Julian day	2459462.436111111
System I	97.71202°
System II	144.06947°
System III	331.71844°
Illumination	99.9%
Phase angle	3.299999952316284°
Solar longitude	48.0°
Eq. diameter	48.67″
Derotation	0.0 min