With excellent help from a reader of mathgroup here is a scale model of the Northern Imbrium Basin. 30 degrees x 60 degrees, 4 pixels per degree data.
Archive for March 2011
The LOLA Science Team released more data to the Planetary Data System in March. This is Taruntius with Cameron on its rim. 1024 pixels per degree data, reduced to 256, or 118.45 meters per pixel. 95km rectangle. The lower-resolution strips are still present in the high-resolution data near the equator.
Imbrium Basin cropped from ldem_16.jp2 produced by the LOLA Science Team. Autolevels in Photoshop has the effect of exaggerating heights and depths in the grayscale image. The inner ring of Imbrium is easily seen.
Cavalerius and Hevelius craters. Rimae Hevelius at the lower right. 800 x 800 at 236.9 meters per pixel. 189.5 km rectangle. The data is not consistent near the equator, so low-resolution strips appear.
Cassini Crater, edge of Imbrium basin and Caucascus mountains. Aristillus and Autolycus craters in the bottom left corner. 128 pixel per degree source reduced 50%, 473.8 meters per pixel. 12.5 degree rectangle, 379 kilometers. There is a nice ghost crater north of Aristillus crater.
Clavius. 780 x 780 image using 400 meter per pixel data. 312 km.
Rutherfurd crater on the southern rim of Clavius generated using 100 meter data. An 81 km rectangle. At this scale the lower resolution stripes as well as some pointy artifacts (see Aepinus) are now visible.