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Everything posted by Ultimate Steve
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I tried, but if I remember right there was something not right about the displayed telemetry or something, I don't remember what exactly.
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totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
Yes, but if you orbit around the terminator you never go into shadow. Obviously you have to balance this with getting to the correct inclination, but every extra minute of sunlight you can get by getting closer to the terminator translates into being able to become operational earlier, and being less susceptible to upper atmospheric fluctuations of the type that killed most of a whole batch of starlinks earlier. -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
If my assumption is correct, they are launching at sunrise or sunset to enter an orbit with more time in the sun so they can run the ion engines for a larger chunk of the orbit. -
totm oct 2022 DART: Double Asteroid Redirection Test
Ultimate Steve replied to Ultimate Steve's topic in Science & Spaceflight
Breaking news: NASA has successfully turned an asteroid into a comet. -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
If the center of mass was exactly halfway up the ship and the landing legs did not protrude outside of the 9m diameter, the maximum tilt would be about 10 degrees, although the actual safe level would be set lower. The steepest Apollo landing was about 11 degrees (Apollo 15). I believe the center of mass will be significantly lower due to the ascent propellant, and, of course, the landing gear is not set in stone. It will definitely be easier to tip than Apollo, but I don't think it will be prohibitively so. -
Firefly Aerospace Discussion Thread
Ultimate Steve replied to Ultimate Steve's topic in Science & Spaceflight
Stream glitched out on liftoff sadly but S1 and Fairing seps went ok, and second stage burn is nominal so far. It looks like they are going to make it this time! -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
Might be the dome of the upper stage. -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
I don't think it is particularly likely (especially after Jared's tweet just now) but presumably a recovery mission won't take place for a long while - In that time starship, in theory, will be able to prove itself. Regarding the tweet, Dragon has carried docking adapters before, but there was always a robotic arm involved. I wonder how they plan to get around that. -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
Recover Hubble via Starship with Dragon EVA support? -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
Just like we do in Kerbal! -
totm oct 2022 DART: Double Asteroid Redirection Test
Ultimate Steve replied to Ultimate Steve's topic in Science & Spaceflight
Impact! -
totm oct 2022 DART: Double Asteroid Redirection Test
Ultimate Steve replied to Ultimate Steve's topic in Science & Spaceflight
My assumption is that the right hand image is the entire field of view of the camera, but either to save on bandwidth, or to zoom in, only part of the image is being displayed (centered on the asteroids, like some kind of image stabilization). That is the left hand box. The right hand box shows that image's location in the full field of view. -
totm oct 2022 DART: Double Asteroid Redirection Test
Ultimate Steve replied to Ultimate Steve's topic in Science & Spaceflight
Draco is the camera on DART itself, if I remember right. -
totm oct 2022 DART: Double Asteroid Redirection Test
Ultimate Steve replied to Ultimate Steve's topic in Science & Spaceflight
Anyone know when we will get pictures from the cubesat that is observing the impact? -
Alright that's it I'm going frame by frame and plotting acceleration and velocity based on the official telemetry. There's been too much speculation on this. I might have a little bit of free time tomorrow morning to do it, but in general this week is very busy for me so it will take a while.
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totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
I am well aware of that, I'm just curious as to what gremlins are in the engines that they have needed to do so many spin primes. -
totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
I wonder why they are doing so many of those. Also, page 1500! -
I have a hard time believing that a mostly vertical re entry from a low altitude would make more g forces than a mostly vertical re entry from a high altitude. Might have been a spike upon the abort engine ignition.
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totm nov 2023 SpaceX Discussion Thread
Ultimate Steve replied to Skylon's topic in Science & Spaceflight
My dad was in California for vacation this past week and he went 0 for 3 on launch attempts. I guess the luck required to get 3 consecutive launch attempts from Vandy was canceled out by the bad luck of none of them working. -
Part of me wants to go frame by frame and calculate an acceleration plot but I really do not have the time for that right now.
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[New] Space Launch System / Orion Discussion Thread
Ultimate Steve replied to ZooNamedGames's topic in Science & Spaceflight
IMO N1 counts because it was proven to generate the amount of thrust advertized. Super Heavy has not, yet, and will not until it does a full static fire, and arguably won't until it actually leaves the ground. You can measure it as "most thrust assembled" "most thrust generated in a single assembled rocket" and "most thrust generated in flight." Neither SLS or Super Heavy have achieved the required thrust levels to count for level 2. -
How does Aerodynamic Lift really work?
Ultimate Steve replied to DA299's topic in Science & Spaceflight
I'm in the third year of an aerospace engineering degree and this is the best explanation of this by far I have ever come across. Thank you. -
Well, there goes my next few days of productivity!
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