[X] My Assistant

[Juramike]

Here is a mosaic of Xanadu that includes:

• Section of Oct 2007 Titan Map (PIA08399)
• T47 SE Xanadu - Hotei Arcus mosaic
• T13 SAR RADAR Swath (PIA08552)
• T3 SAR RADAR Swath (left part from VP's website)
• T20 SAR distant targeted look (also from VP's website)
• PIA10654 SAR image of tectonic ridges in NW Xanadu

Some of the higher latitude swaths were skewed slightly by myself to try to better fit the ISS projection. There are mismatches, particularly for the non-equatorial swaths. The resolution is approximately 6 km/pixel.

A higher resolution (ca. 1.4 km/pixel) jpeg can be downloaded here (WARNING: 7 Mb file)

This will be a handy basemap for Xanadu mosaics and the upcoming RADAR releases.

-Mike

[Juramike]

Using Kirk et al., LPSC 40 (2009) Abstract 1413 stereogrammatry plot of the T41-T43 overlap region, I made a cross section of the T41 Hotei Arcus across a prominent flow and up the southern rim of the entire feature:


The track direction is from NW to SE.
The medium-gray lobate digitate flow is LOWER than the RADAR darker gray-black material. In fact, it appears that a darker gray-black material "ridge" is bounding the toe-front of the flow. The medium-gray digitate flow superposes the channels (according to Wall, S.D. et al., 2009).

As one moves away from the flow front, one climbs in elevation to cross more RADAR dark material (which also looks kinda lobate). This RADAR-darker material is crossed by bright channels.

This is similar to the RADAR-dark lobate flows seen in the eastern end of the T13 SAR RADAR swath (whose RADAR bright channels were VIMS dark blue unit) and also near the Flower Petal crater near Adiri in T8. (Is this related to other RADAR-bright channels seen on RADAR dark terrain in Adiri?)

Could this be older-eroded cryo-flood basalt? Channels superpose this terrain.

And finally, at the SE end of the indicated track one climbs up to the rim of the entire structure onto more "typical" mountainous terrain with a predominant E-W orientation (seen at the E edge of the T41 Swath).

A higher-resolution version with annotations is here: http://www.flickr.com/photos/31678681@N07/...157614820589732
-Mike