Comments: Slightly better seeing than much of the past month

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Observation 1
Feature(s)	GRS
Filter(s)	colour camera
Date	2017-07-21 09:37:48
Julian day	2457955.9006944443
System I	272.56°
System II	293.8°
System III	80.7°
Illumination	99.0%
Phase angle	10.5°
Solar longitude	285.6°
Eq. diameter	35.25″
Derotation	8.0 min