[Add observation]

Observation 1
Feature(s)	GRS Oval BA Io Europa
Filter(s)	ir
Date	2018-09-14 09:32:36
Julian day	2458375.8972222223
System I	312.58722°
System II	9.253218°
System III	267.95895°
Illumination	99.4%
Phase angle	9.100000381469727°
Solar longitude	317.7°
Eq. diameter	33.68″
Derotation	6.0 min