Comments: Following on from the large circular dark spot I captured in the NEBs January 5th I framed an ephemeris which predicted a CM transit Jan 12th at 10:56 UTC. This data was an attempt at that transit. It was very cloudy and I have a Jacaranda tree which currently limits my access to Jupiter in the west. In the event Jupiter revealed itself through the cloud for 23 seconds of data centered on 10:23:20 and then for 10 seconds centered on 10:30:05. I processed both files, derotated and merged them in WinJUPOS for a final combined image of 2173 frames centered on 10:26:42 UTC. There does seem to be a small circular dark spot in the NEBs very much in a similar position to that of the dark spot in my Jan 5th data. Have included an inset from the Jan 5th data and the structure immediately leading the dark spot in the January 12th data seems very similar. The image from January 5th represents 20,000 frames combined and clearly this data from January 12th suffered in that respect.

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Observation 1
Feature(s)	N/A
Filter(s)	ir
Date	2023-01-12 10:26:42
Julian day	2459956.9347222224
System I	15.36942°
System II	248.74878°
System III	207.96454°
Illumination	99.1%
Phase angle	10.800000190734863°
Solar longitude	93.0°
Eq. diameter	38.01″
Derotation	0.0 min