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

[Tim Shoppa]

The gizmo with a CRT is a Specific Products WWV receiver. I'm not sure exactly which model, some had the ability to show on the CRT the CRT phase between local clock and WWV via pips, others would show phase via Lissajous figures.

Tim N3QE

> On Jul 12, 2017, at 4:46 PM, Bob kb8tq <kb8tq at n1k.org> wrote:
> 
> HI
> 
>> On 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?
> 
> Like the GR synthesizer above the GR frequency standard? Both are from the “dark gray” era rather than the later “light gray” period. 
> 
> Not quite sure about the gizmo top left (next to the Austron) with the CRT? in the middle of the pannel. 
> 
> Bob
> 
>> 
>> /tvb
>> 
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