NavList:

Further to the irradiation issue:

I have now discovered a NASA technical reports site dealing with the references mentioned previously in the Haines/Allen paper - and much more!

It is a veritable cornucopia of information. You will be there for hours as I was - fascinated with the vast amount there. It is like entering an Aladin's cave full of gems.

Go to:-
http://ntrs.nasa.gov/search.jsp

and use the search facility: try 'sextant navigation' - that will give you mostly everything.
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The interest in manual navigation in Space was a hot topic in the 1960s and clearly developed very rapidly in that decade resulting in a fine Space quality sextant (the T002) by Kollsman with a maximum error in normal use of 0.9 arc second and an experienced operator use of 1xSigma of 10 arc second or less.

There is so much information it is going to take considerable time to assess it. More later....

Douglas Denny.
Chichester. England.
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