Autor Wątek: Delta IV Heavy | NROL-71 | 19.01.2019  (Przeczytany 2572 razy)

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Offline mss

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Odp: Delta IV Heavy | NROL-71 | 6.01.2019
« Odpowiedź #15 dnia: Styczeń 04, 2019, 19:49 »
https://twitter.com/MXSOCAL/status/1081258057869316096

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Here's the latest from #VandenbergAFB on the #DeltaIV launch, now scheduled for 11 January 2019 with a backup dates of 12 - 17 January 2019.
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Offline JSz

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Odp: Delta IV Heavy | NROL-71 | 11.01.2019
« Odpowiedź #16 dnia: Styczeń 05, 2019, 16:38 »
Aha, no to ponownie przestawiłem datę w tytule wątku.

Nawiasem mówiąc, przypominają się stare dobre czasy, gdy SpaceX praktykował takie permanentne obsuwy...

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Odp: Delta IV Heavy | NROL-71 | 11.01.2019
« Odpowiedź #17 dnia: Styczeń 05, 2019, 18:10 »
Może tym razem się uda? :)

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Odp: Delta IV Heavy | NROL-71 | 11.01.2019
« Odpowiedź #18 dnia: Styczeń 05, 2019, 18:25 »
NROL to wojskowy satelita, więc pewnie shutdown na jego start nie wpłynie?

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Odp: Delta IV Heavy | NROL-71 | 11.01.2019
« Odpowiedź #19 dnia: Styczeń 05, 2019, 18:32 »
NROL to wojskowy satelita, więc pewnie shutdown na jego start nie wpłynie?

Teraz się przekonamy! Pewnie ten start jest na tyle ważny, gdyż ma jakieś krytyczne znaczenie dla infrastruktury i bezpieczeństwa USA, więc prace przy nim są kontynuowane w normalnym tempie.

ALE! Jest chyba ryzyko, że nic nie zobaczymy z tego startu - bo przekaz medialny już nie jest "essential".

Offline JSz

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Odp: Delta IV Heavy | NROL-71 | 11.01.2019
« Odpowiedź #20 dnia: Styczeń 05, 2019, 18:40 »
ULA właśnie poinformowała:

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ULA Konto zweryfikowane @ulalaunch 2 min.2 minuty temu
LAUNCH UPDATE: The ULA #DeltaIVHeavy carrying the #NROL71 mission launch date is under review. A new launch date and time will be provided pending the results of additional testing. (1 of 2)

ULA Konto zweryfikowane @ulalaunch 5 sek.5 sekund temu
We continue to remedy the technical issues that caused the last scrub of the Delta IV Heavy, and are working with our partners, the @NatReconOfc @usairforce to ensure that we fly when it is safe to do so. http://bit.ly/div_nrol71  (2 of 2)

Czyli: nic nie wiadomo jeśli idzie o datę...

Offline mss

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Odp: Delta IV Heavy | NROL-71 | 11.01.2019
« Odpowiedź #21 dnia: Styczeń 15, 2019, 18:47 »
Start obecnie 19.01. o 20:05 czasu polskiego.

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LAUNCH UPDATE: The United Launch Alliance Delta IV Heavy carrying the NROL-71 mission has been scheduled for Saturday, Jan. 19 from Space Launch Complex-6 at Vandenberg Air Force Base in California at 11:05 a.m. PST. http://bit.ly/div_nrol71
« Ostatnia zmiana: Styczeń 15, 2019, 18:49 wysłana przez mss »
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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #22 dnia: Styczeń 18, 2019, 19:20 »
Start obecnie 19.01. o 20:05 czasu polskiego.

Tytuł wątku po raz kolejny uaktualniony...

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #23 dnia: Styczeń 18, 2019, 19:45 »
Mam nadzieję, że po raz ostatni! :)

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #24 dnia: Styczeń 19, 2019, 20:05 »
T-4 i hold - jest głosowanie.

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #25 dnia: Styczeń 19, 2019, 20:07 »
Wynik: GO. Odliczanie wznowione.

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #26 dnia: Styczeń 19, 2019, 20:10 »
Wystartowała!
« Ostatnia zmiana: Styczeń 19, 2019, 20:12 wysłana przez JSz »

Offline ah

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #27 dnia: Styczeń 19, 2019, 22:09 »
Oficjalny filmik ze startu. Sam start w 31 min. filmu, ale do tego momentu też można sporo się dowiedzieć mimo tajnego ładunku.  ;) Ciekawe ujęcia, zwłaszcza odrzucenia boosterów i owiewki.
<a href="http://www.youtube.com/watch?v=DxjaRK2S7fw" target="_blank">http://www.youtube.com/watch?v=DxjaRK2S7fw</a>
https://www.youtube.com/watch?v=DxjaRK2S7fw

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #28 dnia: Styczeń 19, 2019, 22:27 »
Ciekawie wachlują te owiewki po odrzuceniu. :)

Offline Orionid

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Odp: Delta IV Heavy | NROL-71 | 19.01.2019
« Odpowiedź #29 dnia: Styczeń 20, 2019, 08:00 »
Tajny satelita
  19.01. o 19:10 z Vandenberg wystrzelona została RN Delta-4H, która wyniosła na orbitę o przybliżonych
parametrach: hp=? km, ha=? km, i=74° tajnego satelitę NRO L-71. Jest to prawdopodobnie pierwszy satelita
zwiadu optycznego nowej generacji typu Improved Crystal Block 5 #1 (KH-11-17). Otrzymał oficjalną nazwę
USA-290.
http://lk.astronautilus.pl/n190116.htm#02







<a href="http://www.youtube.com/watch?v=NygjTSJwd-I" target="_blank">http://www.youtube.com/watch?v=NygjTSJwd-I</a>
https://www.youtube.com/watch?v=NygjTSJwd-I

Udany start Delta IV Heavy z NROL-71
BY KRZYSZTOF KANAWKA ON 20 STYCZNIA 2019


Tuż przed startem rakiety Delta IV Heavy z NROL-71 / Credts - ULA

Dziewiętnastego stycznia rakieta Delta IV Heavy wyniosła tajnego amerykańskiego satelitę NROL-71.

Do startu rakiety Delta IV Heavy doszło 19 stycznia 2019 o godzinie 20:10 CET. Start odbył się z bazy Vandenberg w Kalifornii. Lot rakiety przebiegł prawidłowo. Start został przeprowadzony dzięki United Launch Alliance (ULA).

Na pokładzie Delty IV Heavy znalazł się satelita o oznaczeniu NROL-71 o charakterze zwiadowczym. Użytkownikiem tego satelity jest amerykańskie National Reconnaissance Office (NRO) – jest to agencja podległa pod Departament Obrony USA. Z uwagi na charakter satelity informacje o końcowych fazach lotu jak również o orbicie i przeznaczeniu NROL-71 nie zostały opublikowane. Z dostępnych informacji wynika jednak, że NROL-71 poleciał na niską orbitę okołoziemską (LEO), na orbitę o inklinacji około 74 stopni. Orbita prawdopodobnie jest eliptyczna – jej apogeum ma wysokość około 1000 km, zaś perygeum około 300 km.


Kosmiczny Teleskop Hubble / Źródło: NASA

NROL-71 to prawdopodobnie zaawansowany satelita zwiadu optycznego z rodziny KH-11 (Crystal). NROL-71 prawdopodobnie należy do piątej generacji satelitów rodziny KH-11. Satelity tej rodziny, po raz pierwszy wprowadzone na orbitę w 1982 roku, prawdopodobnie mają wygląd zbliżony do kosmicznego teleskopu Hubble. Lustro główne tych satelitów ma średnicę 2,4 metra.

W 2020 roku na orbitę zostanie wyniesiony drugi satelita piątej generacji KH-11. Oznaczenie tego satelity to NROL-82. Wykonawcą NROL-71 i NROL-82 jest firma Lockheed Martin.

Był to piąty start rakiety orbitalnej w 2019 roku. Jak na razie cztery starty zakończyły się sukcesem, zaś jeden (irańska rakieta Simorgh) się nie powiódł.

(NSF, PFA, LK)
https://kosmonauta.net/2019/01/udany-start-delta-iv-heavy-z-nrol-71/

Long-Delayed Delta IV Heavy Lofts Heavyweight NROL-71 Spy Satellite
By Ben Evans, on January 19th, 2019


ULA’s first flight of 2019 sets off from Vandenberg Air Force Base, Calif., at 11:10 a.m. PST Saturday, 19 January. Photo Credit: Brian Sandoval/AmericaSpace

Although relegated last February to second place on the list of the world’s most powerful operational rockets—sitting behind SpaceX’s Falcon Heavy—the United Launch Alliance (ULA) Delta IV Heavy roared to space earlier today (Saturday, 19 January), more than a month later than planned, due to hydrogen leaks and other technical woes. Already flown on ten occasions, and once in 2018 to loft NASA’s Parker Solar Probe, the triple-cored booster rose ponderously from Space Launch Complex (SLC)-6 at Vandenberg Air Force Base, Calif., at 11:10 a.m. PST to deliver the classified NROL-71 payload to orbit for the National Reconnaissance Office. As ULA plans to retire the remainder of its Delta IV Medium fleet in 2019, the Heavy will stand alone as the sole member of the Delta family in operational service, flying about once annually into the 2020s. (...)

In the final hours before Saturday’s T-0, the pad area was cleared of all personnel and, following polls by the ULA launch team, a three-step process got underway to fuel the rocket with liquid oxygen and liquid hydrogen. This process began by chilling-down the tanks and ground equipment, fuel transfer lines and valves, to prevent “thermal shocking” as the super-cold propellants begin to flow. After the chilling-down process, fueling got underway, with “fast-flow” until the tanks were almost full, before transitioning to “replenishment mode”, which involved a process of continuous topping-off to maintain flight-ready levels, replacing any boiled-off cryogens. All told, an estimated 440,000 pounds (200,000 kg) of propellants were loaded aboard the Delta IV Heavy, which weighs some 1.6 million pounds (725,750 kg) at liftoff. (...)

Today’s flight represents the first of up to nine ULA launches planned for 2019, a year which will phase-out Delta IV Medium capability. ULA anticipates the final two flights of its “single-stick” Delta IV Medium fleet, a second Delta IV Heavy mission and as many as five Atlas V flights, including unpiloted and piloted tests of Boeing’s CST-100 Starliner spacecraft for the Commercial Crew Program.
https://www.americaspace.com/2019/01/19/long-delayed-delta-iv-heavy-lofts-heavyweight-nrol-71-spy-satellite/#more-105708

First of up to seven ULA launches this year set for Saturday
January 18, 2019 Stephen Clark


File photo of the Delta 4-Heavy on Space Launch Complex-6 at Vandenberg Air Force Base, California. Credit: United Launch Alliance

(...) The payload launching Saturday is top secret, but it is owned by the National Reconnaissance Office, the U.S. government’s spy satellite agency. The mission is codenamed NROL-71. Outside observers believe the payload is likely a very high-resolution imaging satellite with an Earth-facing telescope built to collect sharp pictures of strategic sites, battlefields and other targets around the world.

ULA attempted to launch the Delta 4-Heavy rocket on four occasions in December, beginning with a Dec. 7 launch attempt officials called off to investigate a glitch in the the holdfire system that would allow safety officers to abort a liftoff.

On Dec. 8, the Delta 4’s automatic countdown sequencer halted the clock at T-minus 7.5 seconds, just before the rocket’s three RS-68A main engines were supposed to ignite.

Engineers blamed the Dec. 8 abort on “an intermittent signal from a bad monitor (that) caused an automated hold to be triggered,” wrote Tory Bruno, ULA’s chief executive, on Twitter.

ULA tried again to launch the Delta 4-Heavy rocket Dec. 18, but gusty winds thwarted that launch attempt.

Managers scrubbed the next try Dec. 19 after sensors detected elevated concentrations of hydrogen around the engine section on the launcher’s port-side booster after fueling the Delta 4-Heavy with cryogenic liquid propellants.

ULA’s launch team conducted two tanking tests on the Delta 4-Heavy on Jan. 3 and Jan. 12 to troubleshoot the hydrogen leak, and technicians removed and replaced a valve to resolve the issue, according to Julie Arnold, a company spokesperson. (...)

ULA’s rockets blasted off from Cape Canaveral five times in 2018, and from Vandenberg three times, including the launches of two major NASA science missions — the InSight lander to Mars on May 5 on an Atlas 5 from California, and the Parker Solar Probe on Aug. 12 aboard a Delta 4-Heavy from Florida. The final flight of the venerable Delta 2 rocket Sept. 15 from Vandenberg lofted NASA’s ICESat 2 Earth observation satellite to track changes in polar ice and sea ice.

Up to seven missions are planned by ULA in 2019, one fewer than the company accomplished in 2018 as Air Force and NASA launch activity is expected to wane this year. The manifest is highlighted by the company’s first launch with human passengers. (...)
https://spaceflightnow.com/2019/01/18/first-of-up-to-seven-ula-launches-this-year-set-for-saturday/

Delta 4-Heavy rocket launches U.S. spy satellite into unusual orbit
January 19, 2019 Stephen Clark


A Delta 4-Heavy rocket, comprising three hydrogen-fueled first stage boosters connected together, lifted off at 11:10 a.m. PST (2:10 p.m. EST; 1910 GMT) Saturday from Vandenberg Air Force Base, California. Credit: United Launch Alliance

(...) ULA issued a press release around 90 minutes after liftoff to confirm the successful conclusion of the mission, which was codenamed NROL-71.

“Congratulations to our team and mission partners for successfully delivering this critical asset to support national security missions,” said Gary Wentz, ULA vice president of government and commercial programs, in a post-launch press release. “Thank you to the entire team for their perseverance, ongoing dedication and focus on 100 percent mission success.”

This was the first of up to seven ULA flights on the books this year, and the 132nd ULA mission since the company formed in 2006 with the merger of the Atlas and Delta rocket programs developed by Lockheed Martin and Boeing. All of the launches in the ULA era have been successful. (...)

But expert observers who carefully track satellite activity surmise the spacecraft likely entered an orbit several hundred miles above Earth, at an inclination of around 74 degrees to the equator, based on information in the public domain about the rocket’s course after launch, and the location in the Pacific Ocean where the Delta 4’s upper stage was expected to deorbit and re-enter the atmosphere.

The Delta 4-Heavy rocket, the largest vehicle in ULA’s inventory, had only flown twice from Vandenberg before Saturday — once in 2011 and another time in 2013. Those missions are believed by analysts to have delivered new Keyhole, or KH-11, electro-optical reconnaissance satellites to orbit.

When the NRO announced the next Delta 4-Heavy mission from Vandenberg, observers expected the rocket to loft a new optical imaging satellite to join the others in higher-inclination sun-synchronous orbits tailored for regular, repeatable observations of strategic sites, military installations and other targets of interest to U.S. intelligence agencies.

The KH-11 satellites are essentially bus-sized telescopes peering down on Earth, with primary mirrors measuring 7.9 feet (2.4 meters) across, the same size as the mirror on the Hubble Space Telescope. The ultra-sharp, very-high-resolution imagery produced by such satellites is believed to be unparalleled, and the spy craft relay their observations to the ground via the NRO’s dedicated network of communications satellites.

The Delta 4-Heavy missions in 2011 and 2013 deployed gap-filler KH-11-type satellites to continue supplying the government with reconnaissance imagery after the NRO canceled a contract with Boeing for a replacement line of optical imaging craft as part of the Future Imagery Architecture program.

Keyhole satellites before 2011 launched on Titan rockets from Vandenberg.

The NRO eventually selected Lockheed Martin — the same company that built the past generation of KH-11 satellites — to construct at least two new-generation spacecraft, introducing new technology and other upgrades into the spy satellite constellation.

The new electro-optical surveillance satellites, sometimes called KH-11 Block 5, have the same 2.4-meter mirror diameter as the earlier Keyhole-type Earth-imaging platforms, according to past public statements by government officials. (...)
https://spaceflightnow.com/2019/01/19/delta-4-heavy-rocket-launches-u-s-spy-satellite-into-unusual-orbit/

Photos: Delta 4-Heavy poised for launch with U.S. spy satellite
December 8, 2018 Stephen Clark


The mobile service tower retracts into position for launch during a countdown Dec. 8. Credit: United Launch Alliance


The mobile service tower retracts into position for launch during a countdown Dec. 7. Credit: United Launch Alliance
https://spaceflightnow.com/2018/12/08/photos-delta-4-heavy-poised-for-launch-with-u-s-spy-satellite/

Delta 4-Heavy countdown aborted moments before launch
December 9, 2018 Stephen Clark

(...) It was not immediately clear whether any of the rocket’s three Aerojet Rocketdyne RS-68A main engines started their ignition sequences, but a statement later released by ULA said the computer-controlled countdown sequencer ordered an abort at T-minus 7.5 seconds.

In the statement, ULA said the abort was “due to an unexpected condition during terminal count at approximately 7.5 seconds before liftoff.

“The team is currently reviewing all data and will determine the path forward. A new launch date will be provided when available,” ULA said. (...)
https://spaceflightnow.com/2018/12/09/delta-4-heavy-countdown-aborted-moments-before-launch/
https://spaceflightnow.com/2018/12/07/delta-382-mission-status-center/

https://spaceflightnow.com/2019/01/19/live-coverage-delta-4-heavy-readied-for-launch-from-vandenberg-air-force-base/
https://www.nasaspaceflight.com/2019/01/ula-delta-iv-heavy-set-to-launch-nrol-71/

https://space.skyrocket.de/doc_sdat/kh-11.htm
« Ostatnia zmiana: Styczeń 24, 2019, 12:54 wysłana przez Orionid »