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Titan Flyby (T-88): Observing the Climate on Titan

Titan Flyby (T-88): Observing the Climate on Titan

Nov. 29, 2012

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Titan's Seasonal Swirl
  Titan's swirling south-polar vortex stands out brightly against the other clouds of the south pole (seen at the lower right of the image). The Cassini spacecraft is monitoring the development of the south polar vortex to help understand seasonal changes on Saturn's largest moon. The image was taken on Aug. 31 2012.
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T-88: Observing the Climate on Titan

During this Titan flyby three of the instruments on Cassini focused on the large moon’s atmosphere.

The visible and infrared mapping spectrometer (VIMS) was in the driver’s seat at closest approach and acquired approximately one kilometer per pixel high-resolution images of Adiri, west of the Huygens landing site. On the inbound leg, the composite infrared spectrometer (CIRS) carried out near-infrared vertical mapping of the atmosphere near the Huygens probe entry latitude, at 11 degrees south latitude, to characterize vertical aerosol and gas profiles. Outbound, VIMS attempted detection of clouds in order to monitor climatic changes as the spring season progresses into the northern hemisphere.

The imaging science subsystem (ISS) instrument rode along with CIRS and VIMS observations, inbound and outbound, to image Titan's surface and atmosphere. The outbound leg included the region where extensive surface changes were observed in Fall 2010 and an area at mid-southern latitudes on the trailing hemisphere that had been only been imaged at lower resolution.

ISS also monitored Titan to track clouds and their evolution for an extra day after the Titan encounter.

Titan Flyby at a Glance
Nov. 29, 2012 [SCET]

630 miles (1,014 kilometers)

13,000 mph (5.9 km/sec)


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