Perseverance (Mars 2020 rover) - Atlas V 541 - Canaveral SLC-41 - 30.07.2020

[tnt22]

вертолет в барокамере
https://twitter.com/TJ_Cooney/status/1275480510031110144

 (0:59)

[tnt22]

 Michael Sheetz @thesheetztweetz 9 ч. назад

NASA put the #Mars2020 rover Perseverance in the nosecone of the Atlas V rocket that will carry it to space and then on to Mars.

The mission is scheduled to launch on July 20.

[Старый]

Крышка гроба закрыта. Теперь путь в мир иной.

[tnt22]

Перенос вправо на двое суток

https://www.ulalaunch.com/missions/atlas-v-mars-2020

 Launch Date: Wed., July 22, 2020 at 9:35 a.m. EDT with a two-hour launch window

[tnt22]

https://blogs.nasa.gov/kennedy/2020/06/24/mars-2020-mission-now-targeted-for-july-22-launch/
https://blogs.nasa.gov/mars2020/2020/06/24/mars-2020-mission-now-targeted-for-july-22-launch/

Mars 2020 Mission Now Targeted for July 22 Launch

James Cawley
Posted Jun 24, 2020 at 11:47 am


Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the agency's Mars 2020 Perseverance rover is being prepared for encapsulation in the United Launch Alliance Atlas V payload fairing on June 18, 2020. Photo credit: NASA/Christian Mangano

NASA and United Launch Alliance are now targeting Wednesday, July 22, for launch of the Mars 2020 mission due to a processing delay encountered during encapsulation activities of the spacecraft. Additional time was needed to resolve a contamination concern in the ground support lines in NASA's Payload Hazardous Servicing Facility (PHSF).

The spacecraft and vehicle remain healthy. The launch of the Mars 2020 mission on an Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station is scheduled for 9:35 a.m. ET with a two-hour window.

[tnt22]

https://www.ulalaunch.com/explore/blog-detail/blog/2020/06/24/mars-2020-atlas-v-completes-countdown-rehearsal

Mars 2020: Atlas V completes countdown rehearsal
Jun 24, 2020, 13:11 PM

The United Launch Alliance Atlas V rocket has achieved a major milestone in preparation to launch the Mars 2020 mission on July 22 to investigate whether life ever existed on Mars.



Known as a Wet Dress Rehearsal (WDR), teams from ULA and NASA this past week successfully completed the test that demonstrated the rocket's rollout and day-of-launch countdown operations at Cape Canaveral Air Force Station, Florida.

The assembled rocket, minus the payload, was transported aboard the Mobile Launch Platform (MLP) from the Vertical Integration Facility (VIF) to the launch pad at Space Launch Complex-41 on Saturday, June 20.
 
After reaching the pad, the first stage was loaded with its flight supply of 25,000 gallons of RP-1, a highly refined kerosene. That fuel will remain inside the rocket through launch day, a standard practice for Atlas rockets that undergo a WDR.
 
The countdown on Monday, June 22, was initiated at dawn under the control of ULA Launch Conductor Scott Barney and his team of console operators stationed in the Launch Control Center at the Atlas Spaceflight Operations Center.
 
The rocket stages were powered up, guidance system testing conducted and final preps to ground systems accomplished, enabling ULA Launch Director Bill Cullen to give approval for cryogenic tanking.
 
The launch team configured the Atlas V for cryo loading and approximately 66,000 gallons of liquid oxygen and liquid hydrogen filled the rocket's tanks using the same procedures that will be executed on the actual launch day.

Cullen, with input from NASA Launch Manager Omar Baez, gave permission to enter terminal count at T-minus 4 minutes. 
 


The final phase of the countdown progressed smoothly with all planned activities completed. The rocket's tanks were pressurized, systems armed and the vehicle placed on internal power.
 
At T-minus 25 seconds, Atlas Lead Engineer David Kube, Centaur Lead Engineer Stu Backus and Launch Conductor Scott Barney confirmed final readiness by declaring "Go Atlas," "Go Centaur," "Go Perseverance."
 
The count finished at the scheduled cutoff point just prior to ignition time at 1:55 p.m. EDT (1755 UTC).

The rocket was safed and cryogenic tanks drained to conclude the test. The rocket was returned to the VIF on Wednesday, June 24 after the hardware warmed up and the MLP could be disconnected from the pad facility. The Perseverance rover and Ingenuity helicopter, packaged within its descent vehicle and encapsulated in the payload fairing, is scheduled to arrive at the VIF soon for hoisting atop the Atlas V to produce a 197-foot-tall rocket for launch.
 
WDRs are milestones meant to mitigate any issues before the actual launch day arrives. Typically, they are performed during the launch campaign for all planetary missions that have very short timeframes to launch. Missing that launch period would mean lengthy delays to wait for the next opportunity.
 
In the case of Perseverance and Ingenuity, they have a three-week window in which to launch when Earth and Mars are aligned to carry out the spacecraft's interplanetary trek. 
 
Mars 2020 will reach its destination next February for entry, descent and landing to begin searching for evidence of life persevered in rocks and sediments with an ancient river delta near the Martian equator.

[zandr]

http://novosti-kosmonavtiki.ru/news/55449/

Запуск марсохода Perseverance отложили из-за грязи
Космическое агентство NASA заявило, что запуск нового марсохода состоится не ранее 22 июля 2020 года из-за проблем его загрязнения наземным вспомогательным оборудованием.
Марсоход Perseverance («Настойчивость») должен был отправиться к Красной планете 20 июля 2020 года с мыса Канаверал во Флориде. Но возникла проблема, когда инженеры работали над герметизацией марсохода, поместив его в ракету Atlas V, построенную альянсом United Launch Alliance.
«NASA и United Launch Alliance перенесли запуск миссии «Марс 2020» на 22 июля из-за задержки, возникшей во время инкапсуляции космического корабля, — говорится в сообщении агентства. — Требуется дополнительное время для решения проблемы загрязнения линий наземной поддержки на объекте обслуживания опасных грузов NASA (PHSF)».
Это уже вторая задержка отправки ровера Perseverance на Марс. Первоначально миссия должна была стартовать 17 июля, но была перенесена на три дня — на 20 июля из-за проблемы с оборудованием наземной системы. Проще говоря, сломался кран.
Согласно данным NASA, марсоход Perseverance и ракета Atlas V находятся в хорошем состоянии, а в начале этой недели была успешно проведена заправка ракеты, пишет Ecoruspace.
А.Ж.

[tnt22]

https://blogs.nasa.gov/kennedy/2020/06/30/nasa-ula-targeting-net-july-30-for-mars-2020-launch/
https://blogs.nasa.gov/mars2020/2020/06/30/nasa-ula-targeting-net-july-30-for-mars-2020-launch/

NASA, ULA Targeting NET July 30 for Mars 2020 Launch

Danielle Sempsrott
Posted Jun 30, 2020 at 4:52 pm


More than 10 million names were etched onto a microchip, which was placed aboard Perseverance on March 16, 2020. Photo credit: NASA/JPL

Due to launch vehicle processing delays in preparation for spacecraft mate operations, NASA and United Launch Alliance have moved the first launch attempt of the Mars 2020 mission to no earlier than July 30. A liquid oxygen sensor line presented off-nominal data during the Wet Dress Rehearsal, and additional time is needed for the team to inspect and evaluate. Flight analysis teams have expanded the mission launch opportunities to August 15 and are examining if the launch period may be extended further into August.

[andr59]

Перенос. Теперь не ранее 30 июля.

Окно позволяет пуск до 15 августа.

https://twitter.com/NASAPersevere/status/1278076794101329921

[tnt22]

https://spaceflightnow.com/2020/06/30/nasa-delays-mars-rover-launch-to-no-earlier-than-july-30/

NASA delays Mars rover launch to no earlier than July 30
June 30, 2020 | Stephen Clark


A United Launch Alliance Atlas 5 rocket undergoes a Wet Dress Rehearsal June 22 at Cape Canaveral's Complex 41 launch pad in preparation for liftoff with NASA's Peseverance Mars rover. Credit: United Launch Alliance

A technical issue with the United Launch Alliance Atlas 5 rocket that will send NASA's $2.4 billion Perseverance rover toward Mars has pushed the mission's launch date back to no earlier than July 30, nearly two weeks into a month-long window for the rover to head to the Red Planet, or else face a two-year delay.

NASA confirmed the launch delay to no sooner than July 30 in a statement Tuesday.

"Due to launch vehicle processing delays in preparation for spacecraft mate operations, NASA and United Launch Alliance have moved the first launch attempt of the Mars 2020 mission to no earlier than July 30," NASA said. "A liquid oxygen sensor line presented off-nominal data during the Wet Dress Rehearsal, and additional time is needed for the team to inspect and evaluate."

ULA performed the Wet Dress Rehearsal on June 22. The exercise involved rolling the Perseverance rover's Atlas 5 launcher out of its vertical integration hangar to Cape Canaveral's Complex 41 launch pad, then loading the rocket with kerosene, liquid hydrogen, and liquid oxygen propellants.

The launch team practiced countdown procedures, testing the Atlas 5's systems before halting the pre-launch sequence seconds before ignition of the rocket's RD-180 main engine.

After draining cryogenic propellants from the rocket, ULA returned the Atlas 5 to the Vertical Integration Facility south of pad 41 on June 24 to await the arrival of the Perseverance rover, the centerpiece of NASA's Mars 2020 mission. ULA ground crews are also assessing the liquid oxygen sensor line that behaved unexpectedly during the Wet Dress Rehearsal.

The launch window July 30 opens at 7:50 a.m. EDT (1150 GMT). The Atlas 5 assigned to launch the Perseverance rover will fly in a configuration with four strap-on solid rocket boosters, a single-engine Centaur upper stage, and a 5.4-meter-diameter (17.7-foot) payload fairing.

The Mars 2020 mission was originally scheduled for launch July 17, the opening of an interplanetary launch period stretching several weeks in length. But several problems have delayed the launch date, eating into the limited period NASA has to vault the Mars 2020 mission off Earth on a trajectory toward Mars.

The launch period for the Mars 2020 mission originally ended Aug. 5, but NASA said earlier this month that additional analysis of the rover's trajectory extended the available launch dates through Aug. 11. On Tuesday, NASA said flight analysis teams have added more days to the launch period, which now extends to Aug. 15.

Engineers are examining if the launch period may be extended further into August, according to NASA.

Spaceflight Now requested an interview Tuesday with NASA's launch director for the Mars 2020 mission, but a NASA spokesperson could not provide the interview opportunity.

Nevertheless, the clock is ticking for the Mars 2020 team. Assuming the launch period closes Aug. 15, the mission has now used up nearly half of its launch period this year. The next chance to launch the Perseverance rover after this August will come in 2022.

"When you talk about Earth and Mars being on the same side of the sun, that happens once every 26 months," said NASA Administrator Jim Bridenstine in a Mars 2020 pre-launch press conference earlier this month. "So it's very expensive, if we have to take Perseverance and put it back into storage for a period of two years, it could cost half a billion dollars."

NASA initially delayed the launch to July 20 after a problem with a crane held up assembly of the Atlas 5 rocket inside the VIF. A contamination concern issue with ground support equipment in NASA's Payload Hazardous Servicing Facility — the ultra-clean room where the Perseverance rover is being readied for launch — delayed encapsulation of the spacecraft inside the Atlas 5's aerodynamic payload shroud.


The Perseverance rover is pictured at NASA's Jet Propulsion Laboratory in California last year. Credit: Alex Polimeni / Spaceflight Now

With the contamination concern resolved, NASA and ULA intended to transport the Mars 2020 spacecraft inside its payload fairing to the VIF on Saturday for installation on top of the Atlas 5 rocket.

But ULA needed extra time to address liquid oxygen sensor line issue, and a NASA spokesperson said Tuesday she did not know when the Mars rover could be transported to the Atlas 5 hangar. After the spacecraft is mated to the Atlas 5 rocket, teams need around 25 days to ready the vehicle for launch.

Tory Bruno, ULA's president and CEO, tweeted Tuesday that the Atlas 5 and Mars 2020 teams have "been working through a couple of challenges."

He identified the ground facility issue at the PHSF, and characterized the liquid oxygen system problem as a "misbehaving pressure sensor." He also wrote that current status of the COVID-19 pandemic in Florida has been a concern.

Once the spacecraft is hoisted atop the Atlas 5 rocket, ground crews will install the Perseverance rover's plutonium-fueled power source through a port in the side of the Atlas 5's payload fairing. The Mars rover — about the size of a small car — will be powered by the Multi-Mission Radioisotope Thermoelectric Generator, or MMRTG, throughout its mission.

Assuming it launches this year, the Perseverance rover will land on Mars on Feb. 18, 2021, aiming for a region known as Jezero Crater. Scientists say Jezero is home to an ancient dried-up river delta, where the rover will get to work with its scientific instruments studying Martian geology and climate.

One of the rover's primary missions is to gather dozens of rock and soil samples inside hyper-sterile tubes, which the rover will hermetically seal and drop in caches on the Martian surface for retrieval by a future robotic sample return mission.

[smokan]

Как можно так безответственно относится к такому важному запуску. Вообще нельзя было ракету раньше подготовить и проверить? ULA раз в месяц-два запускает свой Атлас5, в основном для военных, разве были такие проблемы?
Это было бы шоком если бы через неисправность ракетоносителя, неуспели вложиться в строки стартового окна. Придется тогда отложить запуск к Марсу на 26 месяцев.
Кажется такого еще никогда не было, надеюсь и не будет.

[Старый]

Редкая Дельта улетала с первого раза

Кажется такого еще никогда не было,

И вот опять...

[Serge V Iz]

Я вот подумал внезапно. А не подсмотрел ли товарищ Маск крамольно-еретическую идею у самолетчиков?.. 

[lev_g]

Я вот подумал внезапно. А не подсмотрел ли товарищ Маск крамольно-еретическую идею у самолетчиков?.. 

Маск? Какой Маск? Он пробрался ночью в ангар Юлы и перепилил ножовкой кислородную магистраль? Он не только мошенник, а еще и вредитель?

[Serge V Iz]

Я вот подумал внезапно. А не подсмотрел ли товарищ Маск крамольно-еретическую идею у самолетчиков?.. 

Маск? Какой Маск? Он пробрался ночью в ангар Юлы и перепилил ножовкой кислородную магистраль?

Нет, он может действовать изощреннее - по ссылке

[Старый]

Он пробрался ночью в ангар Юлы и перепилил ножовкой кислородную магистраль?

Дрелью.

[Serge V Iz]

Трасологи говорят что-то о 2мм...

[cross-track]

Трасологи говорят что-то о 2мм...

Чтобы сверло не затупилось от переработки!

[tnt22]

Chris G - NSF @ChrisG_NSF 1 ч. назад

Good news! The #AtlasV #Centaur sensor that malfunctioned during Wet Dress has been found and the issue is being repaired.  Launch, at present, is No Earlier Than 30 July 2020 at about 07:50 EDT (11:50 UTC). #Perseverance #Mars #Rover
@ulalaunch

Переписка

Eric Berger @SciGuySpace 30 июн.

NASA has confirmed that the launch of Mars Perseverance will slip to no earlier than July 30th due to an issue that cropped up during the wet dress reshearsal.


Adnan Taufiq @adnantaufiq_ 30 июн.

@torybruno any updates?


Tory Bruno @torybruno 21 ч

В ответ @adnantaufiq_ и @SciGuySpace
Yes.  Misbehaving sensor.  We have retrieved it, found the cause, and are repairing it now.


Steve @MyGhostWorld 15 ч. назад

В ответ @torybruno
@adnantaufiq_ и @SciGuySpace
Since it was found so quickly, any chance the original date can be returned to?


Tory Bruno @torybruno 12 ч. назад

no.  testing...

[Чебурашка]

А Атлас варианта 541 переделать в вариант 551 можно быстро? Пусковое окно на недельку бы расширилось