How does laser communication work with a moving object with 9DoF?!
Just like this, a Starlink gimbal being tested for future third party laser comms: https://www.youtube.com/watch?v=dpFfC9WY0qs
Doesnt look very precise.
Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
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Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#142Why does the article keep mentioning footage “from the surface of the moon”?
AI knows what really people want to see.
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#143Hopefully, the footage is better than the missed pan up at lift-off, and showing spectators at the time of booster separation. I understand funding cuts and all, but this is a once-in-a-generation moment and it’s filmed with no apparent effort whatsoever.
Artemis has a budget of over 90 billion dollars, it's more than 4 billion for that Artemis II launch (as estimated by NASA, possibly more because they don't even know exactly how much they're spending). For that price one might reasonably expect a couple of quality cameras for the public to be able to view what their money was spent on. For comparison, a SpaceX ISS resupply mission costs NASA ~$150 million. While tha…
From what I have heard, the standard rebuttal to NASA expense is that they are ploughing money into the ground to grow new things the hard way.
The goal isn’t to do things we can already do the way we know how to do them, it’s to do things we can’t do in ways we don’t yet have by training new people who don’t yet know how to do it. The opportunity being seized is that the investment will pay off with a leap forward to bigger and better things.
NASA is the Idris to SpaceX’s Python, the free jazz to their K-pop, the Cyberdeck to their MacBook, or — to go back to my original analogy — the locust-based flour to their 1000 hectares of wheat. This isn’t a value judgment. Pushing boundaries and knuckling down on commercial success are both worthy endeavors.
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#144Earlier quoted context omitted.
Artemis has a budget of over 90 billion dollars, it's more than 4 billion for that Artemis II launch (as estimated by NASA, possibly more because they don't even know exactly how much they're spending). For that price one might reasonably expect a couple of quality cameras for the public to be able to view what their money was spent on. For comparison, a SpaceX ISS resupply mission costs NASA ~$150 million. While tha…
From what I have heard, the standard rebuttal to NASA expense is that they are ploughing money into the ground to grow new things the hard way. The goal isn’t to do things we can already do the way we know how to do them, it’s to do things we can’t do in ways we don’t yet have by training new people who don’t yet know how to do it. The opportunity being seized is that the investment will pay off with a leap forward t…
I mean that sounds nice, but the SLS rocket and Orion capsule are nothing new, they’re already outdated.
But yeah NASA is great at many things. Issacman is smart enough to know they don’t need to be in the launch busnieee anymore.
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#145Earlier quoted context omitted.
This article is plagued by several almost-truths, and gets a lot mixed up. The thing that is happening for the first time on this mission is humans personally observing much of the far side in daylight. For the Apollo missions the far side was mostly dark because they wanted a high sun angle at the landing site on the near side. Many uncrewed orbiting cameras and even a recent Chinese lander & rover have taken photos…
But Artemis II launched during passover - so a day before the full moon. That means that for a 10 day mission, the flyby will be four days after the full moon. And the flyby is necessarily on the far side of the moon, that's how physics works. So they'll be passing over the far side of the moon four days after a full moon - the far side of the moon will be in almost complete darkness. Not even Earthshine lights the d…
My understanding is that even that small amount is more than the Apollo crews had. It's all a bit of a marketing line anyway. We can see a good portion of the "far side" from Earth due to the Moon's libration.
Still, it's true that parts of the far side are still unseen by human eyes (if you consider pitch black landscape to be "unseen" which I think is fair given the lack of any significant illumination as you point out).
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#146Earlier quoted context omitted.
But Artemis II launched during passover - so a day before the full moon. That means that for a 10 day mission, the flyby will be four days after the full moon. And the flyby is necessarily on the far side of the moon, that's how physics works. So they'll be passing over the far side of the moon four days after a full moon - the far side of the moon will be in almost complete darkness. Not even Earthshine lights the d…
My understanding is that even that small amount is more than the Apollo crews had. It's all a bit of a marketing line anyway. We can see a good portion of the "far side" from Earth due to the Moon's libration. Still, it's true that parts of the far side are still unseen by human eyes (if you consider pitch black landscape to be "unseen" which I think is fair given the lack of any significant illumination as you point…
I believe that Apollo 17 spent six days in lunar orbit. I'm not sure at what phase they arrived or left, but worst case they saw the far side three days away from full darkness.
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#147Earlier quoted context omitted.
Nobody important enough was in charge of the presentation with full context. This, of course, is a bad sign about the reliability of the mission. Folks have been raising serious safety red flags. If the video of the launch goes off that poorly it says things about how in a row their ducks are.
or, yknow, focusing on astronaut safety was more important than taking care of how things look on tv
If you have to make that trade off you’re already in trouble.
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#148This is amazing. This is a slow burn but live view from Orion https://www.youtube.com/watch?v=6RwfNBtepa4
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#149Earlier quoted context omitted.
They missed it pulling off the pad, they then had a picture of the plume, the wide shot off the pad was quite a bit too late also, then they missed the separation of the boosters and the upper stage separation. Honestly it looks like they intentionally missed every high risk procedure intentionally and cut back a few seconds after it had succeeded.You don't make this many mistakes one after the other accidentally, it…
Clearly, you've never worked with a live video crew. If they have no practice, it's amazing how bad you can appear with a lack of appreciation of how fast things move. You also have to remember the camera/operator are really far away with a very large zoom. Things leave your field a view much faster than anticipated. After that, any correction becomes over corrections again because of the zoom factor. Also, I would n…
The probability that they accidentially missed the booster separation is very low. There is also a clear incentive to cut away in case it fails.
Re: Artemis II will use laser beams to live-stream 4K moon footage at 260 Mbps
#150Artemis II live location: https://www.nasa.gov/missions/artemis-ii/arow/