Comments: Dust storm appears to involve the western portion of Terra Sirenum with what appear to be waves extending over the South Pole.

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Observation 1
Feature(s)	Dust storm
Filter(s)	color
Date	2018-06-22 07:42:24
Julian day	2458291.8208333333
System I	23.4°
System II	359.0°
System III	111.68°
Illumination	94.8%
Phase angle	26.4°
Solar longitude	53.4°
Eq. diameter	19.13″
Derotation	24.0 min