New Horizon Cameras |
New Horizon Cameras |
Guest_vjkane2000_* |
Apr 22 2005, 03:57 AM
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#1
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Guests |
I've been wondering what the focal lengths are for the two New Horizon cameras (Ralph and Lorri). Curious to know how much Alan et al. were able to squeeze into their weight budget.
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Sep 14 2005, 09:58 AM
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#2
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
The Deep Impact defocus problem has distinct similarities to the Hubble problem. Tester malfunction, and not enough independent testing to catch the error. Granted, the Deep Space camera was assembled out of focus so that as the structure degassed, it would drift into focus, but images of real objects at or near infinity are remarkably good targets for a final check on optics... even if you only measure the defocus independently. (granted, it's not easy to get images of objects at infinity from a cleanroom)
Sadly, the noise added to the Deep Impact images will probably render multispectral imaging of the nucleus useless due to noise amplification during the deconvolution process. There may well be no usable color information with the original s/n of the camera, but all we may now see is the brownish overall color described in postings from the DPS meeting. |
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