[LMB] Fwd: Re: Fwd: Re: Chinese soletta?

Baur baur at chello.at
Sat Oct 20 15:26:54 BST 2018


it is called a

https://en.wikipedia.org/wiki/Molniya_orbit

and you usually need three satellites (spaced out in time by 1/3 of the 
oribtal period) to keep one ground point in the high latitudes in 
constant line of sight to any of the satellites

servus

markus

Am 20.10.2018 um 16:02 schrieb Richard G. Molpus:
> The Russians developed an Orbitals pattern that swung 'high' and low in a regular pattern, to provide decent coverage of the northern stretches of the USSR. It took several sattilites to provide 24x7 coverage, but they managed.
> The Chinese may use a similar orbit for their soletta array, to give the coverage they want.
> Richard M.
> 
> Sent from Yahoo Mail on Android
>   
>    On Sat, Oct 20, 2018 at 1:09 AM, Baur<baur at chello.at> wrote:
> 
> 
> -------- Weitergeleitete Nachricht --------
> Betreff: Re: [LMB] Chinese soletta?
> Datum: Fri, 19 Oct 2018 20:52:28 +0200
> Von: Baur <baur at chello.at>
> Antwort an: baur at chello.at
> An: M R Dolbear fm <little.egret at dolbear.fastmail.fm>
> 
> tit .. seen from the mirror the sun would rotate around (just like the
> sun rotates around you here on eath once a day) - so the direction to
> the sun changes all the time
> 
> but the direction to the place you are supposed to light stays the same
> 
> so you have to turn the mirror all the time in order to reflect the
> light from the moving sun to the fixed target
> 
> servus
> 
> markus
> 
> Am 19.10.2018 um 18:02 schrieb M R Dolbear fm:
>>
>>
>>
>> On Fri, 19 Oct 2018, at 16:49, Joel Polowin wrote:
>>
>>> Even if the satellite is in a geosync orbit, it wouldn't be literally
>>> over Chengdo most of the time.  They'd need to be continually adjusting
>>> the attitude of the mirror.
>>
>> How so ? - you don't have to adjust the pointing of a satellite dish?
>>
> 
> 


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