[time-nuts] Papers on timing for lunar laser ranging

paul swed paulswedb at gmail.com
Wed Jul 12 16:17:27 EDT 2017


Top unit is the GR 1164 synth sig gen.
I see what looks like an HP 105 but a slightly modified one.
Also the Sulzer.
Stuff on the left looks home brew.
Regards
Paul
WB8TSL

On Wed, Jul 12, 2017 at 3:27 PM, Tom Van Baak <tvb at leapsecond.com> wrote:

> 2 items:
>
> 1) I ran across another link related to lunar timing. Last year Carroll
> Alley died (89). To me he's famous for his cesium and H-maser relativity
> experimence in the 1970's. But he was also the PI for the Apollo Lunar
> Laser Ranging Retroreflector experiments. More info here:
>
> https://www.nasa.gov/vision/space/features/21jul_llr.html
>
> http://umdphysics.umd.edu/about-us/news/department-news/
> 1128-carroll-alley-june-13-1927-february-24-2016.html#!
> Alley_Lunar_Laser_Ranging_Retroreflector_1
>
> https://en.wikipedia.org/wiki/Carroll_Alley
>
> 2) That second link above has some wonderful photos.
>
> http://umdphysics.umd.edu/images/igallery/resized/1-100/
> Alley_Lunar_Laser_Ranging_Retroreflector_1-99-700-300-100-c.jpg
>
> Spot the Austron 1250A, Sulzer 2.5, and GenRad(?) quartz frequency
> standards. Anyone recognize more gear?
>
> /tvb
>
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