This image was acquired
by the Spaceborne Imaging Radar-C/X-band Synthetic
Aperture Radar (SIR-C/X-SAR) on April 18 and 19, 1994, onboard the
space shuttle Endeavour. The processing steps were similar to
those of slide #16. This image shows that
the relatively flat tops of the two concentric rings are rough, blocky,
and probably composed of solid rock. The dark appearance of the depression,
on the other hand, probably indicates that the trough is filled with a
relatively thick deposit of dry, unconsolidated sediment. The irregular
feature in the upper left corner is a portion of a feature that has been
proposed to be a second crater, but there is no confirming evidence for
such a suggestion. The area shown is 22 kilometers by 28 kilometers. Location:
19°6'N, 19° 15'E Right click here to download a high-resolution version of the image (17.0 MB) |