[Add observation]

Observation 1
Feature(s)	Callisto blue festoons brown barge
Filter(s)	l
Date	2024-01-28 17:57:00
Julian day	2460338.247916667
System I	296.9961°
System II	140.98949°
System III	201.58841°
Illumination	99.0%
Phase angle	11.399999618530273°
Solar longitude	127.7°
Eq. diameter	40.15″
Derotation	10.0 min