Planet Four Talk

The Science of The HiRise Camera.

  • Kitharode by Kitharode moderator

    Not for the faint-hearted, but packed with useful stuff:

    https://wiki.umn.edu/pub/ShackeltonCraterProject/CameraInfo/HiRISE_Manual.pdf

    Posted

  • angi60 by angi60

    It'll take me a bit to read and digest this, but it looks fascinating 😃

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  • Kitharode by Kitharode moderator

    Well worth a scan through. Sections of it are quite readable and do tell us a lot of interesting stuff and there are a couple of really interesting images in there. Great for the techno bods and science heads, but no denying the weightiness of these articles.

    Posted

  • angi60 by angi60

    Well I'll do the best I can! 😉

    Posted

  • Kitharode by Kitharode moderator

    HiRise follows a sun synchronous orbit. To achieve this, the inclination (tilt) of the HiRise orbit must be greater than 90 degrees. Although this video is based around the Earth the ideas being presented are exactly the same for satelites orbiting Mars.

    http://www.youtube.com/watch?NR=1&v=4K5FyNbV0nA&feature=fvwp

    For those of you not familiar with the terminology being used, the idea is that if your orbit is tilted less than 90 degrees your 'crossing point' at the equator goes in the wrong direction to keep you sun synchronous. If greater than 90 degrees then your crossing point moves along the equator in the right direction. A tilt of around 93 degrees would move your crossing point in the right direction, at the right speed, to keep you sun synchronous. Tricky stuff. ** 😛 **

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