Imaged Saturn Sept 21st targeting the 2010 GWS AV, had good seeing covering 63 minutes of Saturn rotation. Am extremely pleased to have well resolved the AV which I measure to be at approx Lat+41.6 L3 307.1. This AV has become quite a challenge to resolve as the apparition has progressed, it is drifting south and that has resulted in a significant reduction to its Westerly drift rate.
A mid latitude bright spot is resolved at approx Lat+29.4 L3 278.8.
A quite intriguing phenomenon that I have not previously seen at Saturn is seen on the EZ / NEB border. A very prominent short wavelength high amplitude ripple / wave is resolved impinging well up into the NEB which is demonstrably influencing material within the NEB. The NEB has a very thin white band of cloud running along the centre of it which is being deflected up and over the peak of the ripple / wave.
The ripple is at approx Lat+14.7 L1 282.8 and the effect it is having on the cloud band in the NEB is well seen in the 685nm IR animations and also the EQ maps and 150% insets included with each 685nm IR data set. Have quite a significant volume of data from this session; all has been uploaded to PVOL.
Cheers
Trevor
http://pvol2.ehu.eus/pvolimages/satu...85nmIR_tba.gif
http://pvol2.ehu.eus/pvolimages/satu..._polar_tba.gif
http://pvol2.ehu.eus/pvolimages/satu...0-27_r_tba.gif
http://pvol2.ehu.eus/pvolimages/satu...32_rgb_tba.gif
http://pvol2.ehu.eus/pvolimages/satu..._polar_tba.gif