What's the definition of a planet's atmosphere edge? Does it just keep on thinning out to a light year and beyond or is there a clear transition?
Juno skims the cloud tops of Jupiter
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Re: Juno skims the cloud tops of Jupiter
#12Quoted post unavailable.
I was surprised to hear that. I visit nasa.gov frequently, and I’ve never seen this nonsense.
Re: Juno skims the cloud tops of Jupiter
#13What's the definition of a planet's atmosphere edge? Does it just keep on thinning out to a light year and beyond or is there a clear transition?
Bit of both. https://climate.nasa.gov/news/2919/earths-atmosphere-a-multi...
99.99997 percent is below 100km, but the exosphere is considered to go as far as 10k, and maybe further:
> A February 2019 study using data from the NASA/European Space Agency Solar and Heliospheric Observatory (SOHO) spacecraft suggests, however, that the farthest reaches of Earth’s atmosphere — a cloud of hydrogen atoms called the geocorona — may actually extend nearly 391,000 miles (629,300 kilometers) into space, far beyond the orbit of the Moon.
Re: Juno skims the cloud tops of Jupiter
#14In case anybody was wondering "Why is the frame rate so lousy?" the answer is that the probe only has about 325 bits per second of downlink on average. https://en.wikipedia.org/wiki/Juno_(spacecraft)
Would it be possible to extrapolate frames in between to give one smooth flyover?
Yes but it will look like there's extrapolated frames. I'm sure you'll see something like that in a YouTube video or something on the Discovery channel but I don't see the point of NASA doing that.
Re: Juno skims the cloud tops of Jupiter
#15Quoted post unavailable.
I was surprised to hear that. I visit nasa.gov frequently, and I’ve never seen this nonsense.
It is pretty easy to set off if you control your browser much (privacy-enforcing proxies, ad blockers, etc.).
I haven't seen it with NASA, but I'm currently doing something that trips CF's verify-your-humanity bullshit on third party sites a lot. Haven't yet figured out what upsets it.
Re: Juno skims the cloud tops of Jupiter
#16Quoted post unavailable.
To prevent bots from causing bandwidth costs to be insane?
Re: Juno skims the cloud tops of Jupiter
#17Quoted post unavailable.
so that google can be the only crawler that is allowed
Re: Juno skims the cloud tops of Jupiter
#18Can someone run this through ML to create a smooth animation?
Why? Just 3D animate it using other imagery from NASA/ESA probes to map to a sphere and then fly the camera over it in what ever fashion you want your pretty pictures. You're confusing scientific data with pretty pictures for the sake of being pretty pictures.
Re: Juno skims the cloud tops of Jupiter
#19Quoted post unavailable.
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Re: Juno skims the cloud tops of Jupiter
#20210,000 kilometers per hour. Almost 60km/40mi per second. Amazing speed when you think about it. Wonder if there would be any time dilation noticable if the craft ever gets captured and brought back to earth.
Relativistic effects are measurable with accurate enough clocks in earth satellites (or even just taking a clock to a mountain) and correction is necessary in systems with finicky time requirements like GPS. Incidentally, the relative speed you can napkin math estimate - an object in orbit flying that close to the planet is going to have escape-velocity-ish speed. It's around 60km/sec for Jupiter.
> taking a clock to a mountain