[time-nuts] Aircraft ping timing

Jim Lux jimlux at earthlink.net
Thu Mar 20 16:05:04 UTC 2014


On 3/20/14 8:53 AM, Poul-Henning Kamp wrote:
> In message <40280C39FE7D43C79313A1755BCAF58D at StanleyPC>, "Stanley" writes:
>
>> Would think they have many other aircraft with known position stationary or
>> moving with location known to help improve the estimate.
>
> They might have been able to do that while the plane responded, but
> now that the plane is silent it is too late.
>

It's also not something they really do as part of regular operations. 
It's probably more like a long term performance monitoring thing to make 
sure the satellite isn't degrading, or mis pointed.



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