Comments: I used large telescope despite the fact, that forecast of vertical wind profile promised rather poor seeing during the evening.

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Observation 1
Feature(s)	brown barge red filament blue festoons white plumes shadow of Europa
Filter(s)	l
Date	2023-12-16 18:43:00
Julian day	2460295.279861111
System I	19.540136°
System II	191.28978°
System III	240.49721°
Illumination	99.5%
Phase angle	8.399999618530273°
Solar longitude	123.9°
Eq. diameter	46.14″
Derotation	8.0 min