Re: [ATM] Review article on the SDSS telescope

["Richard F.L.R. Snashall" <rflrs@rcn.com>]

Michael Peck wrote:

>This long review article on the 2.5m SDSS telescope at Apache Point 
>might interest some of you: 
><http://www.arxiv.org/PS_cache/astro-ph/pdf/0602/0602326.pdf>.
>
> From a quick skim through there are detailed discussions of the 
>optical design, optical fabrication and testing, optical supports, 
>temperature control, mechanical and drive systems, etc. There might 
>be some useful ideas for advanced amateurs here. If you're trying to 
>push the limits of thin mirror technology the description of the 
>active optics system is interesting.
>
If I've done this right, Camera mode:

    http://users.rcn.com/rflrs/sdss01-01.atm
    http://users.rcn.com/rflrs/sdss01-01.len
    http://users.rcn.com/rflrs/sdss01-01.zmx

and Spectroscopic mode:

    http://users.rcn.com/rflrs/sdss01-02.atm
    http://users.rcn.com/rflrs/sdss01-02.len
    http://users.rcn.com/rflrs/sdss01-02.zmx

A bit interesting that they shift the secondary between the
modes.  Other than "it works better", I haven't a clue yet.
Going to have to dig deeper, I guess.

Thank you, Michael!



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