Author Topic: Atlas V 541 - Perseverance, Mars 2020 Rover - SLC-41 - July 30, 2020  (Read 102852 times)

Online FutureSpaceTourist

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https://twitter.com/torybruno/status/1274437081209733120

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Starting our trip to the Red Planet. Mighty Atlas has rolled to the pad and RP1 tanking is underway. #MarsPerseverance

Offline kdhilliard

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... NASA to Hold Mars 2020 Perseverance Rover Launch Briefing
... at a media briefing at 2 p.m. EDT Wednesday, June 17. ...
Briefing participants will be:
NASA Administrator Jim Bridenstine
Lori Glaze, director of NASA's Planetary Science Division at NASA Headquarters in Washington
Katie Stack Morgan, Perseverance deputy project scientist at NASA’s Jet Propulsion Laboratory (JPL) in Southern California
Matt Wallace, Perseverance deputy project manager at JPL
Luis Dominguez, Perseverance deputy electrical integration and test lead at JPL
Omar Baez, launch director in NASA’s Launch Services Program at NASA’s Kennedy Space Center in Florida.
...
Here is NASA's recording of their livestream:

"NASA’s Mars 2020 Perseverance Rover – Countdown to Mars"
YouTube -- NASA -- 1:26:27

Online FutureSpaceTourist

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https://twitter.com/ulalaunch/status/1275035926155190273

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The joint ULA, @NASA_LSP and @NASAPersevere team is on console as the countdown gets underway at Cape Canaveral for today's #AtlasV Wet Dress Rehearsal. The rocket will launch Mars 2020 on its trek to the red planet next month. bit.ly/av_mars2020

Online FutureSpaceTourist

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https://twitter.com/ulalaunch/status/1275089431528161285

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#DYK: After rollout to the pad on Saturday, the #AtlasV rocket first stage was loaded with 25,000 gallons of RP-1, a highly refined kerosene. The room-temperature fuel will remain stored aboard the rocket from now through launch, a standard practice for missions with WDRs.

https://twitter.com/ulalaunch/status/1275082043542712320

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Today's #AtlasV test is called a Wet Dress Rehearsal for a reason. Cryogenic fueling operations have begun at Space Launch Complex-41 to load the rocket with 66,000 gallons of liquid oxygen and liquid hydrogen as we demonstrate day-of-launch operations. bit.ly/av_mars2020

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https://twitter.com/ulalaunch/status/1275102742290317313

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Today's #AtlasV Mars 2020 Wet Dress Rehearsal is being conducted at Cape Canaveral's Space Launch Complex-41 to test hardware and systems in a real-life scenario. The practice includes virtually all countdown operations and will conclude before engine start. #CountdownToMars

Online FutureSpaceTourist

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https://twitter.com/ulalaunch/status/1275123947680542720

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All systems are "go" as we enter the final phase of the countdown for today's #AtlasV rehearsal of the @NASAPersevere launch day. ULA Launch Conductor Scott Barney polled the team and ULA Launch Director Bill Cullen gave permission to enter terminal count. bit.ly/av_mars2020
« Last Edit: 06/22/2020 05:54 pm by FutureSpaceTourist »

Online FutureSpaceTourist

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https://twitter.com/ulalaunch/status/1275127110529691657

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Today's #AtlasV test was successfully completed at 1:55pmEDT (1755 UTC). Systems will be safed, cryogenic fuels drained and the rocket allowed to warm up before rollback to the Vertical Integration Facility for Mars 2020 attachment. bit.ly/av_mars2020

Offline jacqmans

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In this artist's concept, a two-stage United Launch Alliance (ULA) Atlas V launch vehicle speeds the Mars 2020 spacecraft toward the Red Planet. The rocket stands at 197 feet (60 meters) tall. This will be the 11th Mars launch on an Atlas rocket and the fifth by the Atlas V following NASA's Mars Reconnaissance Orbiter in 2005, Curiosity rover in 2011, MAVEN orbiter in 2013 and InSight lander in 2018. Charged with returning astronauts to the Moon by 2024, NASA will establish a sustained human presence on and around the Moon by 2028 through NASA's Artemis lunar exploration plans.

NASA/JPL-Caltech

Online FutureSpaceTourist

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https://www.flickr.com/photos/nasakennedy/50036776428/

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NASA Kennedy
KSC-20200603-PH-JBS01_0171

In this view looking up inside the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, the second of four solid rocket boosters (SRB) for the United Launch Alliance Atlas V 541 rocket is lowered by crane into position on June 3, 2020. The SRB will be mated to the Atlas V booster. NASA’s Mars 2020 mission with the Perseverance rover is scheduled to launch on July 20, 2020, atop the Atlas V rocket from Pad 41. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover’s seven instruments will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management. Photo credit: NASA/Ben Smegelsky
NASA image use policy.

Online FutureSpaceTourist

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https://www.flickr.com/photos/nasakennedy/50037686593/

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NASA Kennedy Follow
KSC-20200618-PH_CMM01_0006

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Mars 2020 logo is installed on the United Launch Alliance Atlas V payload fairing on June 18, 2020. Secured inside the fairing is the agency’s Mars 2020 Perseverance rover. The rover is scheduled to launch on July 20, 2020, atop the Atlas V 541 rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover’s seven instruments will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management. Photo credit: NASA/Christian Mangano

https://www.flickr.com/photos/nasakennedy/50037697263/

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NASA Kennedy Follow
KSC-20200618-PH_CMM01_0002

Inside the Payload Hazardous Servicing Facility at NASAâs Kennedy Space Center in Florida, the agencyâs Mars 2020 Perseverance rover is being prepared for encapsulation in the United Launch Alliance Atlas V payload fairing on June 18, 2020. The Mars Perseverance rover is scheduled to launch on July 20, 2020, atop the Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The rover is part of NASAâs Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The roverâs seven instruments will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management. Photo credit: NASA/Christian Mangano

Offline jacqmans

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Offline gongora

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https://twitter.com/jeff_foust/status/1275858830535131137
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We’ll be sure to ask about the two-day launch slip to July 22 announced earlier today.

Online FutureSpaceTourist

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https://www.clickorlando.com/news/local/2020/06/24/nasa-pushes-mars-rover-launch-to-july-22-from-cape-canaveral/

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NASA said there was a processing delay “encountered during encapsulation activities of the spacecraft.” In a statement, the agency said additional time was needed to resolve a contamination concern.

After cleaning to be sure of no issue it’s all good now.

Online FutureSpaceTourist

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Oh.

twitter.com/sciguyspace/status/1278067392703336448

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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.

https://twitter.com/sciguyspace/status/1278067686753349632

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The agency has also determined that the launch window can be extended to August 15th and is exploring opportunities after this point. Sources are confident the mission will make a 2020 launch but this is not optimal.

Edit to add:

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

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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.
« Last Edit: 06/30/2020 09:05 pm by FutureSpaceTourist »

Offline TorenAltair

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Reposting an image from FutureSpaceTourist. I added a marker.

Someone with humor out there..

Online FutureSpaceTourist

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twitter.com/adnantaufiq_/status/1278068898521219072

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@torybruno any updates?

https://twitter.com/torybruno/status/1278364328278835201

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Yes.  Misbehaving sensor.  We have retrieved it, found the cause, and are repairing it now.

Offline Norm38

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If the sensor is being repaired now, why does the launch have to slip three weeks from now?  When that’s not optimal for the payload?
Are they doing another WDR?

Is there a schedule of events from now till July 30th?

Online FutureSpaceTourist

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twitter.com/thesheetztweetz/status/1278513964029272066

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United Launch Alliance repaired the issue it discovered with the Atlas V rocket's Centaur upper stage for the launch of NASA's #Mars2020 rover Perseverance, sources tell me.

https://twitter.com/thesheetztweetz/status/1278514252026961920

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The launch date could move up as much as a day or more from the current target of no earlier than July 30, the sources said, but that is yet to be determined. NASA & ULA are at least more confident that the mission will happen within this Mars conjunction window.

Offline Zed_Noir

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If the sensor is being repaired now, why does the launch have to slip three weeks from now?  When that’s not optimal for the payload?
Are they doing another WDR?

Is there a schedule of events from now till July 30th?

Think they have to more or less restacked the Centaur from partially disassemble state that probably included reassembling the lower portion of the payload fairing that encapsulated the Centaur.

Offline savantu

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https://twitter.com/ulalaunch/status/1275127110529691657

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Today's #AtlasV test was successfully completed at 1:55pmEDT (1755 UTC). Systems will be safed, cryogenic fuels drained and the rocket allowed to warm up before rollback to the Vertical Integration Facility for Mars 2020 attachment. bit.ly/av_mars2020


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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.

I guess successful doesn't have same meaning everywhere.

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