The power of HiRISE |
The power of HiRISE |
Oct 9 2008, 08:04 PM
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#101
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Busy preparing a new Outreach talk here, and have been trying to find some images to illustrate the "power" of HiRISE for a non-technical audience. Playing about with - sorry, carefully looking at the images on - the addictive Mars Global Data site I found a cute landslide on Xanthe Terra that does the trick nicely. Using the IAS Viewer you can zoom in on the boulders carried down the slope by the landslide and even see cracks and splits in them... unbelievable...!
Anyone else got any fave examples? -------------------- |
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Oct 29 2010, 09:36 PM
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#102
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Member Group: Members Posts: 234 Joined: 8-May 05 Member No.: 381 |
Don't really want to start a new topic, so I'll put this here. I've noticed that the weekly releases of new images on the uahirise.org website have only had one extended phase (ESP prefix) image per week, with the rest being primary science phase (i.e., older) images. I found something from the September 2010 MEPAG meeting in a presentation titled "Current Orbiter Capabilities for Future Landing Site Selection" that might help explain this:
"HIRISE: Team has used longer and more frequent warm-ups to compensate for increasing ADC (analog to digital converters) bit flip errors. Considering an onboard annealing sequence which ground testing indicates could reduce errors by breaking up and dispersing the ADC contamination." Later in the presentation it says "need to use the capabilities conservatively where instrument and/or spacecraft limitations dictate." Also of interest is where it reports CRISM capabilities have decreased because of degradation of its gimbal (used for high resolution) and coolers (needed for IR observations). I don't think these degradations are reversable. Hopefully, HiRISE can successfully do the annealing fix before maximum data transmission rates are reached again next year. |
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