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Tą anomalią była nieprawidłowa deorbitacja drugiego stopnia? Wow
{...}Zadaję sobie pytanie, czy będzie utrzymany dotychczas zaplanowany skład załogi Crew-10 (z NASA: McClain + Ayers)?Jeśli tak, to Nicole Ayers (z 23 grupy astronautów NASA) wyprzedziłaby Zenę Cardman (z 22 grupy astronautów NASA) w kolejności lotów w kosmos.Ciekawe, czy nastąpi jakieś przeformowanie załogi Crew-10, żeby jednak takie "wyprzedzenie" nie nastąpiło?Ostatecznie Zena nie jest chyba winna tego, że wyłączono ją ze załogi Crew-9. {...}
Here is the ground track showing the planned reentry area at bottom left. My analysis suggests that an off nominal deorbit that still ends up with stage reentry will impact on the orange line somewhere between the end of the white rectangle and the equator
The most likely failure mode that still results in reentry is a slight underburn (less delta-V, higher resulting perigee). If you underburn too much the perigee will be too high for reentry to occur. So you expect the entry to be further along the orange line but not by too much
So where did the Crew-9 second stage come down?Here is the ground track of Crew-9 based on the TLE (orange) and the planned stage 2 deorbit area (white rectangle)
More possible is an *overburn* (failure of the engine to shut down) resulting in early reentry nearer (but still safely south of) New Zealand. But I think an underburn is more likely. Hopefully we'll hear more.Of course one can imagine weirder scenarios, where the stage points stably in the wrong direction during the burn and ends up in a high apogee arc splashing down further downrange, but it's unlikely.
Update... Cosmonaut Alexander Gorbunov becomes the 708th human to enter Space. The 621st to orbit the Earth. Note this is @AstroHague's third launch. Sadly, Gorbunov's designation should have belonged to @zenanaut
Zauważyłem, że start współkomentowała Zena Cardman.To musiało być dla niej spore wyzwanie (emocjonalne).Wydaje mi się, że chwilami głos jej drżał, a oczy chyba trochę szkliły się (od powstrzymywanych łez)....NewMan
Sunset at pad 40
Crew Dragon ship with Russian cosmonaut Peskov on board on its way to ISS15 Mar, 03:51(...) The spacecraft is scheduled to dock with the ISS on Saturday evening. Roscosmos cosmonaut Alexander Gorbunov and US astronauts Nick Hague, Barry Wilmore and Sunita Williams are expected to leave the ISS aboard the Crew Dragon in mid-March. (...)Roscosmos and NASA have a seat-swap agreement for flights to the ISS. Under the deal, some US astronauts fly to the ISS aboard Russia’s Soyuz spacecraft, while some Russian cosmonauts fly on board America’s Crew Dragon capsules. Maxim Kharlamov, head of the Gagarin Cosmonaut Training Center, a subsidiary of Roscosmos, told TASS in January that the agreement was extended until the end of 2026.
SpaceX Crew 9 has safely splashed down.
As if the Crew 9 return wasn’t legendary enough, dolphins have now arrived at the floating Dragon.
Splashdown of Crew-9 Dragon at about 2157:07 UTC Mar 18 near 84.1W 29.2W
Hague and Gorbunov spent 171d 4h 39m 47s in flight, Williams and Wilmore 286d 7h 4m 52.
Welcome home, @AstroHague, @Astro_Suni, Butch, and Aleks! 🌎✨Crew-9 splashed down safely in the water off the coast of Florida near Tallahassee on Tuesday, March 18, 2025.Hague, Gorbunov, Williams, and Wilmore have returned to Earth from a long-duration science expedition aboard the @Space_Station.
Wątek: SpX - Crew-9 (Przeczytany 14157 razy)