[Add observation]

Observation 1
Feature(s)	North polar storms
Filter(s)	color
Date	2018-08-19 02:25:12
Julian day	2458349.6006944445
System I	99.33355°
System II	N/A
System III	160.05505°
Illumination	99.8%
Phase angle	4.599999904632568°
Solar longitude	343.5°
Eq. diameter	17.56″
Derotation	48.0 min