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T78 Flyby (September 12, 2011 / Rev 153), upper atmosphere measurements
Juramike
post Sep 8 2011, 11:42 PM
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Link to Cassini T78 page: http://saturn.jpl.nasa.gov/mission/flybys/titan20110912/

Much more info on the CICLOPS Looking ahead page (entire 3rd paragraph): http://www.ciclops.org/view/6866/Rev153
CIRS (longer wave IR) South Polar high latitude chemical measurements
UVIS upper atmosphere nitrogen profile (proxy for pressure/temperature - used to normalize atmospheric measurements from CIRS)
UVIS [deuterium absorption cell] H to D ratio (H-H vs H-D molecular transitions or atomic transitions of H. vs D. ?)

This'll be really exciting to compare with previous flyby data acquired nearer to the solstice.
How is the south polar atmosphere cooling?
How about the concentrations of the different chemical species? - they were pretty bland and uniform at the South Pole during southern pole summer, but pretty exciting and zonal at the north pole winter. Is the south polar atmosphere starting to create zones as it transitions to winter?

Stay tuned...




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Juramike
post Sep 17 2011, 03:37 PM
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Animation of images as Cassini departs Titan during the T78 flyby:


Attached Image


[*Animated GIF: click to animate*]


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titanicrivers
post Sep 18 2011, 04:56 AM
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Those nice T78 parting views with the WAC provide another look at Senkyo, an area affected by the arrow storm of September 2010. One of the T78 images (W00070110) cropped and enhanced is shown below and compared with the Dec 2010 NAC image that provided the first good post-storm look at Senkyo. The arrow highlights the most obvious changes which appear similar to the evolution of changes seen in Belet.
T78 also included a nice NAC view (N00175715) of a near full Titan from 1.94Mkm which is shown below with the Dec 20 2010 NAC view.
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