Ranger, Surveyor, Luna, Luna Orbiter, 1960s Missions to Earth's Moon |
Ranger, Surveyor, Luna, Luna Orbiter, 1960s Missions to Earth's Moon |
Apr 21 2005, 08:07 PM
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#1
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
Have any of the serious experts on this board ever sorted out any 1960s images? I'm thinking of the Surveyor panoramas (in the 60s they did it with photos pasted onto the inside of half-spheres!) and the way that the exposure dropped off toward one corner, making a horrible patchwork effect. Or them lines and spots on the Lunar Orbiter images...
Most of the NASA mission data should be available as digital source material, and thus could be manipulated, though I suspect that getting anything 'real' from Soviet missions would be a bit of a chase! Any thoughts? -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Apr 23 2005, 01:40 PM
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#2
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
The Surveyor pans are 360 wide, though a hardware limit leaves a diagonal gap "behind" the camera where it would be looking through the central mast of the Surveyor frame. (you get glimpses of the ground through the frame). In the forward direction the pans extend from the horizon to the limit of visibility of the surface, about 70 degrees of image height. BUT the cylindrical pans which I am using are limited to more like 60 degrees height by the projection geometry.
Lots of variations on these pans were made, and much more could be done with them than I am going to be able to do. There is a book called Atlas of Surveyor 5 Images which shows multiple pans (in sections, not in the cylindrical geometry) with different lighting. Sadly, not published for the other missions. Less known is that Surveyors 1 and 2 carried descent imaging systems... but they were never used. S1 did try to take a picture with it after landing to test the electronics, but it failed. It wasn't used during descent because it would cut too much into engineering data transmission, and frankly they didn't expect the first one to land successfully. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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