Azmuith ,Time and the sun's position

chib

Regular Member
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#1
Hi
Does anyone know a software I could use to estimate the asmuith of a satelite by using the sun's postion and time of the day. Hope this makes sense.

Cheers for your help


Chib
 

gameboy

Ding Dang Doo
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#3
Not sure if this answers your question but this site will give you thet settings...

h**p://www.heavens-above.com/

The Sun is about due South at midday - this will give you a start.
 

Analoguesat

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#4
The sun moves 15 degrees westwards an hour, so will be near 13E at 1100gmt and at 30W at 1400 gmt. In the winter, the sun is lower than the satellites, in summer higher. During the April / October solstices, the sun passes almost behind the satellites for several days ( which causes the sun outage phenomena). You could make a table up easily enough for when the sun is passing each direction
 
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#5
*Reference; "During the April / October solstices, the sun passes almost behind the satellites for several days ( which causes the sun outage phenomena)." Only correct if you are located on the equator. For the UK it's end Feb/start Mar 2005 and mid Oct 2005.

Mr Analoguesat must still be "well tanked up" ;) ;) :ny because he has a link on his web site for finding out the sun outage times for any sat and anywhere on the earths surface.
The sun moves 1degree from east to west every minute. The sun is overhead at 12.00 GMT (13.00 BST) if you are located on the zero degrees longitude meridian. You can work out a satellite position from that taking into account your long position.
* Analoguesat ( I'm sure that you are doing this to keep me on my toesO-Ha O-Ha O-Ha {J})
Good grief, I'm getting more like "S.R. and M.P.", must stop posting:-cheers
 

damhy

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#6
AForester said:
The sun moves 1degree from east to west every minute.
Really? That doesnt make sense to me, because that implys the sun will move around the Earth (360 Degrees) in 360 minutes, which of course is 6 hours. Are you sure the sun isn't moving one degree every 4 minutes, or is my maths that bad?
 

gameboy

Ding Dang Doo
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#7
AForester said:
Good grief, I'm getting more like "S.R. and M.P.", must stop posting:-cheers
Congratulations on 100 posts.... Mr Forester
 
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a variety of lnb's (5), dishes (2), diseqc motors (3) and receivers (4).
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#8
Erratum, the sun appears to move 1 degree every 4 minutes, whereas in fact the sun is static and the earth is spinning but we assume that we are still and the sun moves. My previous statement "The sun moves 1degree from east to west every minute." was obviously a typo. Well spotted "damhy". Must lay of the Ginger Beer and Shloer red grape juice:)

:ny to all as I sink slowly into the west. I'm thinking of hibernating until mid March.
 
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My Satellite Setup
a variety of lnb's (5), dishes (2), diseqc motors (3) and receivers (4).
My Location
East of Cambridge (GB).
#9
PS

* gameboy
Thanks for informing me about 100 posts and the congratulations.
I see that I have become a "Specialist Contributor" for some unknown reason. Time for me to go AWOL methinks, and "start running silent running deep" as the saying goes.
 
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