Johannesburg and London at night from satelllite images
I found this nifty site: Earth and moon viewer. It shows satellite images from way up over the earth. What is cool is if you click the link “satellite in earth orbit“, you can choose from which satellite you want to view Earth.
Then I got thinking: how many satellites are up there exactly?
And why is my answer “err .. maybe one or two”?
So, why aren’t satellites part of my world, but yet, they are, critically so? In other words, I don’t interact with satellites on a daily basis – I’ve neve seen one launch, or fall to earth, and I take satellite TV for granted. Why is that?
So, here is a cool spreadsheet detailing satellites currently orbiting around Earth – when, where, why and how heavy, or if you prefer scientific-like questions.
- How many satellites does a given country have in orbit, and what are they used for?
- How many satellites are used for military purposes versus commercial purposes?
- Which countries have earth-observing satellites?
- At what altitudes do most satellites orbit?
Total number out there: 890. Yes. 890. I think this excludes dead ones.
And South Africa has a grand total of … 0. But, we do, according to wikipedia, we do have a satellite launcher.