Hi All,

Many thanks to all those of you that replied to my question direct and via the list.

I forgot to mention that I use Orbitron and find it one of the better tracking programs that I have tried.. we all have our own software that we prefer and this is mine. One thing I didn’t know is how accurate the shadow was on the map, IE was it just for the sun on the earth more than if the satellite is illuminated, as I know that early evening passes for the ISS can be seen by the naked eye and therefore, even though I am in darkness, the ISS isn’t?

Perhaps I am reading too much into all this and should just believe the tracking program..

Thanks again for your help and understanding!

Chris

-----Original Message----- From: i8cvs [mailto:domenico.i8cvs@tin.it] Sent: 13 January 2008 18:37 To: Chris Bloy; 'amsat' Subject: Re: [amsat-bb] High of Satellite to be in sunlight

Hi Chris,

Use InstantTrack

Satellite Covisibility -- InstantTrack shows you when satellites can see other satellites (i.e., when crosslinks are possible), when satellites are in eclipse (in the shadow of the Earth), etc. This display, of course, updates in real-time, so you can see crosslinks appear and disappear.

73" de

i8CVS Domenico

----- Original Message ----- From: "Chris Bloy" chris@photofuture.co.uk To: "'amsat'" amsat-bb@amsat.org Sent: Sunday, January 13, 2008 5:20 PM Subject: [amsat-bb] High of Satellite to be in sunlight

Hi all,

Strange question, I guess partly related to wanting to work AO-7 later

this

year. How do you know, or calculate whether a satellite is in sunlight

even

if the prediction programs shows it to be out of sunlight on the map?.

I.e. will the satellite be illuminated even though the earth in the

coverage

area is not?

I hope that makes sense?!

Also, I have been trying to look in the archive and work out exactly when AO-7 will be in what mode during the passes over my QTH.. I try and use

the

Planet Emily site and Oscar.dcarr.org, but it appears to be mainly in mode

A

more then B?

Finally, has anyone heard the beacon from her recently?

Many thanks,

Chris

M0DQO

IO90KU - UK

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----- Original Message ----- From: "Chris Bloy" chris@photofuture.co.uk

I forgot to mention that I use Orbitron and find it one of the better tracking programs that I have tried.. we all have our own software that we prefer and this is mine. One thing I didn’t know is how accurate the shadow was on the map, IE was it just for the sun on the earth more than if the satellite is illuminated, as I know that early evening passes for the ISS can be seen by the naked eye and therefore, even though I am in darkness, the ISS isn’t?

____________________________

Orbitron will show the satellite as having sun illumination when the path line is yellow. if the satellite path line is red, or the satellite dot on screen is red, then it has no sunlight. In the picture that I will link at the bottom of this email, i show VO-52 where it has sunlight a little over where the earth surface is dark. http://members.shaw.ca/sparkycivic/HAM/illumination.JPG

Maybe you have to turn on the tracking lines for this to work?? That's in the "visualisation" tab with the checkbox: " ground track"

Best of luck, Auke VE6PWN