[evlatests] antenna 28 pointing still bad

Bob Broilo bbroilo at nrao.edu
Tue Nov 25 11:43:34 EST 2008


>> From .001" -> 2 arc-sec, the radius the .001" is acting over is
> given by 10^-2/R = 10^-5 radians, or R = 100 inches.

Sounds correct, the bearing is 120" so the point at which we are
measuring is prolly 10" or so inward.

> Bob sees this between 110 and 140 degrees, but the pointing "bump"
> is seen between 100 and 250 degrees of azimuth.

Also, the magnitude of the "bump" should change according to the
direction from which it is approached.  Is this true?

Bob.



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