Kolejny Dragon 05.12. o 18:16:16 z Cape Canaveral wystrzelona została RN Falcon 9R, która wyniosła w T+8' 31" na orbitę statek
transportowy Dragon SpX-16. Jego uchwycenie i przyłączenie do ISS wykonane zostało 08.12.2018 o 12:21/15:36.
W T+8' pierwszy stopień RN, który miał wylądować na LZ-1 na Cape Canaveral, z powodu awarii pompy siłownika
steru aerodynamicznego skierował się do Atlantyku, gdzie miękko zwodował.
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Film z kamery
naziemnej.
http://lk.astronautilus.pl/n181201.htm#06Misja CRS-16 kapsuły Dragon BY REDAKCJA ON 5 GRUDNIA 2018 MISJE ORBITALNE, PRYWATNE
5 grudnia odbył się start rakiety Falcon 9 z kapsułą Dragon w ramach misji logistycznej CRS-16 do Międzynarodowej Stacji Kosmicznej.
Dwa dni po udanym starcie Falcona 9 z Zachodniego Wybrzeża z 64 satelitami, tym razem start rozpoczął się z Cape Canaveral. O godzinie 19:16 czasu polskiego wystartował Falcon 9 z misją logistyczną CRS-16. Po 8 minutach i 31 sekundach na orbitę wyniesiona została kapsuła Dragon. Podjęto również próbę lądowania na stanowisku Landing Zone-1 znajdującym się na terenie kosmodromu.
Odzyskanie pierwszego stopnia napotkało jednak na problemy. W wyniku awarii pompy hydraulicznej pierwszy stopień nie mógł ustabilizować się w locie i właściwie manewrować. Zamiast na Landing Zone-1 pierwszy stopień wodował w pobliżu linii brzegowej Florydy. Elon Musk na Twitterze potwierdził już, że systemy pierwszego stopnia nadawały nawet po wodowaniu, a w przyszłości zostaną zainstalowane rezerwowe systemy kontrolujące lotki sterowe.
Tymczasem drugi stopień właściwie kontynuował prace i wyniósł kapsułę Dragon na orbitę. Jej przyłączenie do Międzynarodowej Stacji Kosmicznej ma odbyć się 8 grudnia około południa czasu polskiego.
Nagranie ze startu misji CRS-16 i anomalii podczas odzyskiwania pierwszego stopnia / SpaceX
Opublikowane przez firmę SpaceX nagranie z lądowania pierwszego stopnia na wodzie / Credits – SpaceX
Głównym ładunkiem naukowym przywożonym na ISS jest GEDI (Global Ecosystem Dynamics Investigation lidar). Aparatura lidarowa NASA będzie wykonywać pomiary ukazujący, jak bardzo wylesianie wpływało na zmiany dwutlenku węgla w atmosferze. Drugim eksperymentem w ładowni Dragona będzie Robotic Refuelling Mission 3, test przepompowania paliwa na orbicie. Łącznie Dragon przywiezie 2573 kg ładunku na Międzynarodową Stację Kosmiczną.
Lot CRS-16 został opóźniony ze względu na pleśń w żywności dla myszy, które zostaną wysłane w misji na pokład Międzynarodowej Stacji Kosmicznej.
Misja CRS-16 jest komentowana w wątku na Polskim Forum Astronautycznym.
(SpaceX)
https://kosmonauta.net/2018/12/misja-crs-16-kapsuly-dragon/Photos: Falcon 9 poised for launch at pad 40December 5, 2018 Stephen Clark
Credit: Steven Young/Spaceflight Nowhttps://spaceflightnow.com/2018/12/05/photos-falcon-9-poised-for-launch-at-pad-40/SpaceX Falcon 9 boosts Dragon cargo ship to orbit, first stage misses landing targetDecember 5, 2018 William Harwood
SpaceX’s Falcon 9 rocket lifts off from pad 40 at Cape Canaveral Air Force Station, Florida. Credit: SpaceX(...) Long-range tracking cameras provided spectacular views as the stage dropped tail first toward Cape Canaveral. But television views from a camera mounted on the rocket suddenly showed it rotating roughly about it’s long axis.
The rocket’s center engine started as usual for landing, and the booster’s landing legs deployed at low altitude as they would in a normal landing. Interestingly, the landing leg deployment seems to have slowed down the rocket’s rotation just before impact in the ocean.
While the landing was unsuccessful, the primary goal of Wednesday’s mission was to deliver the Dragon cargo ship to the proper orbit. And the Falcon 9 did just that.
If all goes well, the spacecraft will reach the station Saturday morning, pulling up to within about 30 feet and then standing by while station commander Alexander Gerst, operating the lab’s robot arm, locks onto a grapple fixture. (...)
The science gear on board includes an experiment to test robotic spacecraft refueling techniques using ultra-cold cryogenic propellants, another instrument that will use laser beams to measure tree heights globally to determine the effects of deforestation on carbon dioxide processing and another to develop wound dressings that improve drug delivery.
Yet another experiment will study development of retinal implants intended to restore vision to patients with age-related macular degeneration and retinitis pigmentosa. The Marvel Guardians of the Galaxy Space Station Challenge is sponsoring student experiments to develop a UV-activated dental glue that could help astronauts on long-duration voyages and another testing a mist-based irrigation system for plants grown in space. (...)
https://spaceflightnow.com/2018/12/05/spacex-falcon-9-boosts-dragon-cargo-ship-to-orbit-first-stage-misses-landing-target/SpaceX landing mishap won’t affect upcoming launchesby Jeff Foust — December 5, 2018
A still from a video posted by SpaceX CEO Elon Musk showing the Falcon 9 first stage touching down on the ocean just offshore of the company's Landing Zone 1 site after a problem with the stage's grid fins prevented a normal landing. Credit: Twitter @elonmuskWASHINGTON — The failure of a Falcon 9 first stage to make its planned landing after a Dec. 5 launch shouldn’t affect plans for upcoming launches, a SpaceX executive said.
The Falcon 9 first stage used on the launch of a Dragon cargo spacecraft to the International Space Station was intended to land at the company’s Landing Zone 1 at Cape Canaveral, several kilometers to the south of Space Launch Complex 40, where the rocket lifted off.
However, the booster suffered a problem with the grid fins on the first stage, used to control the vehicle during its descent. The stage, at one point spinning rapidly, ended up touching down on the surface of the ocean a few kilometers offshore. The booster toppled over but remained afloat, and SpaceX was sending out boats to tow the stage back to the harbor at neighboring Port Canaveral.
Elon Musk, the chief executive of SpaceX, said in a series of tweets that a hydraulic pump used for the grid fins malfunctioned, which prevented them from working properly and leading to the stage spinning up. “Some landing systems are not redundant, as landing is considered ground safety critical, but not mission critical,” he wrote.
Hans Koenigsmann, vice president of build and flight reliability, offered a similar explanation at a post-launch briefing at NASA’s Kennedy Space Center. The stage, he noted, continued to work even after tipping over into the water, going through a standard post-landing safing sequence and transmitting data.
“It looks like what happened is some malfunction with the grid fins,” he said. “The important part here is that we have a safety function on board that makes sure that the vehicle does not go on land until everything’s okay, and that worked perfectly.”
The booster targets a point just offshore, he explained, shifting to the landing pad on the coast closer to touchdown. “Even if it is on land it avoids buildings. It knows where buildings are, so it’s pretty smart in that aspect,” he said of the landing system on the booster. “The vehicle kept well away from anything where it could pose even the slightest risk to population or property, so public safety was well protected here.”
The booster is equipped with an autonomous flight safety system, but that was disabled as planned prior to when the booster started to spin up. Koenigsmann said the flight termination system is turned off when the booster no longer poses a threat to the public.
A solution to the problem, Koenigsmann said, could involve redundancy by adding a backup hydraulic pump system, something Musk also suggested, but he said the company needs to study the problem more before making any decisions. “I think it’s too early to say” how it can best be fixed, he said. “I think we need to actually investigate that first and figure out what actually was wrong and what is the smartest solution.”
Koenigsmann anticipated no delays to SpaceX’s next missions. The company’s next launch, of the first GPS 3 satellite for the U.S. Air Force, is scheduled for no earlier than Dec. 18, followed by the launch of the final 10 Iridium Next satellites from Vandenberg Air Force Base in California no earlier than Dec. 30.
“I don’t think this has any impact on GPS 3,” he said. That Falcon 9, he noted, won’t attempt a landing, since it needs the booster performance that would be reserved for a landing to carry out the mission.
He also didn’t expect any effect on the final Iridium launch, although he suggested that launch may slip until early January for other reasons. “I do not anticipate any impact on that schedule here,” he said. “We have enough time between now and then to bring in corrective actions and to make sure that we land that booster safely.” That mission will feature a droneship landing, like several previous Iridium launches.
Koenigsmann also revealed at the briefing that the rocket’s upper stage, which successfully placed the Dragon cargo spacecraft in orbit, used redesigned composite-overwrapped pressure vessels (COPVs) used to store helium to pressurize the stage’s propellant tanks. SpaceX redesigned those COPVs after a September 2016 pad explosion in order to meet NASA safety requirements for future commercial crew missions.
NASA requires SpaceX to perform at least seven launches with the redesigned COPVs before the agency will allow its astronauts to fly on the vehicle. Koenigsmann said he believed this was the second launch to use the redesigned COPVs, after the launch of the Es’hail-2 communications satellite Nov. 15.
https://spacenews.com/spacex-landing-mishap-wont-affect-upcoming-launches/https://www.nasaspaceflight.com/2018/12/falcon-9-crs-16-dragon-iss/https://spaceflightnow.com/2018/12/04/spacex-cargo-launch-slips-a-day-after-rodent-experiment-snag/https://spaceflightnow.com/2018/12/05/launch-timeline-for-spacexs-16th-resupply-launch-to-the-space-station/https://space.skyrocket.de/doc_sdat/dragon.htmGEDI ⇑
https://space.skyrocket.de/doc_sdat/gedi.htmRRM3 ⇑
https://space.skyrocket.de/doc_sdat/rrm3.htmhttps://space.skyrocket.de/doc_sdat/techedsat-8.htmCATSat ↑
https://space.skyrocket.de/doc_sdat/cat.htm (1 i 2)
https://space.skyrocket.de/doc_sdat/unite.htmhttps://space.skyrocket.de/doc_sdat/delphini-1.htm
Wątek: Falcon 9 | CRS-16 | 5.12.2018 (Przeczytany 20480 razy)