[Laser] test

[Jim Moss]

New presentation LLR, gives some nice TX and RX system info.
https://cddis.nasa.gov/lw21/docs/2018/presentations/Session9_Xiong_presentation.pdf

Proceedings site:
https://cddis.nasa.gov/lw21/index.html

Jim

Sent from my iPad

> On Jan 1, 2019, at 7:23 AM, Art <ky1k at myfairpoint.net> wrote:
> 
> Hi Joe,
> 
> Good to see you on the laser list, hope you're still ballooning.
> 
> The reflectors left on the moon are large and precise.
> 
> However, with the very high power and tightly collimated lasers
> available to NASA, and state of the art aiming systems (laser ranging
> stations, space observatory class), they have many misses. The FOV's are
> very narrow, so narrow in fact that the Moon has to be tracked, the RX
> has to be moved properly after the pulse is sent. For each pulse, only a
> few photons, or a few 10's of photons are received back. And, the Moon
> is never completely dark, optics aren't perfect....so the ambient light
> is QRM.
> 
> Libration is a factor, which is unavoidable.
> 
> Regards,
> 
> Art
> 
> 
> 
> 
>> On 1/1/19 9:46 AM, Joe wrote:
>> Yup,
>> But very very quiet.
>> 
>> A Question. How much power laser would it be needed to use the
>> reflectors left on the moon?
>> 
>> Joe WB9SBD
>> Sig
>> The Original Rolling Ball Clock
>> Idle Tyme
>> Idle-Tyme.com
>> http://www.idle-tyme.com
>>> On 12/31/2018 11:53 PM, bernieS wrote:
>>> Is this list still alive? Fireworks are causing QRM tonight. Happy
>>> New Year.
>>> 
>>> -bernieS
>>> 
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> 
> 
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