Satellites – Where are they?

Look up and spot the satellites above you. How far are they? Well, if you could lift up the front of your car until it was standing on its exhaust pipe and then drive straight upwards, the nearest ones are only one hour’s drive away, assuming your car can go 160km/h. I’m sure mine could achieve that – on the way back.

Virgin Galactic is taking deposits (now) to fly you not quite so high (one day) for R2,5m.

Altitude

Satellite Types

160-480km

shuttles, space stations, spysats, navsats, hamsats

480-960km

weather sats, photo sats

960-1 900km

spysats, military comsats, hamsats

4 800-9 600km

science sats

 1 000-19 000km

navsats (eg. GPS)

36 000km

communications, broadcast, weather (geo-stationary)

Those that stay in one position relative to earth (the ‘geo-stationary’ ones) are a bit further and it would take you about two weeks of non-stop driving to get to the DSTV satellite (please switch off all those “reality” shows while you’re there), so better pack some sarmies and a flask of coffee. And take blankets.

car in space_2.jpg

Two geo-stationary satellites.

On this scale the space shuttle and spysats are flat against the earth – you couldn’t see any space between them and earth they’re so close.

So: Ready to take a R2 500 000 flip?

Virgin Galactic.jpg

The furthest ‘satellite’ you wouldn’t be able to drive to, though. It is now 20 640 000 000km away. Voyager 1 was launched in 1977. It’s more a ‘space probe’ and it’s flying away from us at about 17km per second. Voyager 1 is the first and only man-made object to have explored Uranus and Neptune, and to have left our solar system. A radio message from Voyager 1 now takes over 19hrs to reach us.

voyager-1.jpg

What you say?

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s