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Stupid question: how do they measure speed of the satellite? I mean, on the website they've mentioned the speed of one of their satellite as ~7.6 kmps. Is that the actual speed of the satellite or it's a measure of how much land the the satellite covers per second?
Not an expert. But there are a few ways to look at this. Bodies that are in stable orbit can have only a specific velocity which is a function of its distance from & mass of whatever it is orbiting. So orbiting satellite's speed can be inferred from its orbital height. There are ground based tracking stations that can technically measure the speed of any orbiting body. Also read somewhere that LEO satellites could us…
Earlier quoted context omitted.
If you could track the satellite could you not shine a laser, or bright light (maybe a mirror reflecting the sun) directly at the camera to mess up the imaging while over your region?
And if an aircraft flies over your property you could get charged with a federal offense (pointing a laser at an aircraft).
Stupid question: how do they measure speed of the satellite? I mean, on the website they've mentioned the speed of one of their satellite as ~7.6 kmps. Is that the actual speed of the satellite or it's a measure of how much land the the satellite covers per second?
The orbital velocity and the ground track velocity only differ by about 6.6% for their 450km orbit, so it's not a big difference. But because they have a relatively circular orbit, you can use the formula sqrt(G*M/R) which gives 7.639km/sec -- so it looks like they are referring to true orbital velocity.
Stupid question: how do they measure speed of the satellite? I mean, on the website they've mentioned the speed of one of their satellite as ~7.6 kmps. Is that the actual speed of the satellite or it's a measure of how much land the the satellite covers per second?
They can measure it by altitude. An orbiting object always has a defined velocity at any point of its orbit. For example, a circular orbit 500km above Earth's surface amounts to velocity of 7.61 km/s everywhere on it.
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Chromium doesn't have all that tracking stuff right. What's wrong with it?
[1] https://www.theverge.com/2019/4/8/18300772/microsoft-google-...
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Chromium doesn't have all that tracking stuff right. What's wrong with it?
"This visualization doesn't work right on Firefox+Linux, sorry! You could try Chrome/Chromium instead." No Thanks.