[Add observation]

Observation 1
Feature(s)	Oval BA Io
Filter(s)	rgb
Date	2023-08-08 20:05:30
Julian day	2460165.3368055555
System I	51.53649°
System II	134.749°
System III	149.37166°
Illumination	98.9%
Phase angle	11.800000190734863°
Solar longitude	112.0°
Eq. diameter	40.66″
Derotation	10.0 min