The Jupiter and Io image is a combined CCD image using DMK21AU04 monochrome camera (L) and SPC900 (RGB) both with IR block filter. The captured this image on October 7th 2011 at 22:13UT using IC Capture and SharpCap and processed with Registax 6. Instrument used C8 f/25.
Seeing conditions were unstable.
Starting from the North (top):
NEB looks narrow. The dark red spots in NEBn remain active and prominent. NTropZ has a alight bluish hue.
Two major prominent dark ovals are observed in the NEB.
The EZ looks quite complex, with a prominent festoon extending along the central meridian.
The SEB texture is very rich, with no conspicuous white ovals.
Major actiuvuty is seen within STZ on the F side. Small white ovals are seen in SPR.
See reference guide for Jupiter surface nomenclature.
Check out other Jupiter images on October 7th here.