Author Topic: SpaceX FH - Europa Clipper - KSC LC-39A - 14 October 2024 (16:06 UTC)  (Read 126615 times)

Offline MickQ

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Quite a few prayers, I think, Eric.
« Last Edit: 08/29/2024 09:09 pm by MickQ »

Offline ugordan

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I'd like to think that NASA engineers wouldn't let this mission fly based only on a prayer and that they've concluded that the transistors are good enough for committing a NASA flagship mission to launch.

Offline shooter6947

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Yeah the team spent months investigating mitigations for the MOSFETs, and if they're satisfied that they can execute the mission with what they've got, then I'm sure that they can.

Offline LouScheffer

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If it fails, we will lose the science it would discover.  But the scientists evaluating this would lose decades of their work, and any chance at a scientific legacy.   They must be pretty darn certain it will work as-is.

Offline StraumliBlight

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NASA Invites Media to View Launch of Jupiter Moon Mission [Sep 3]

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NASA and SpaceX are targeting a launch period opening Thursday, Oct. 10, for the agency’s Europa Clipper mission, which will help scientists determine if one of Jupiter’s icy moons could support life. The mission will launch on a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.

Europa Clipper will carry nine instruments and a gravity science experiment aboard to gather detailed measurements as it orbits Jupiter and conducts multiple close flybys of its moon, Europa. Research suggests an ocean twice the volume of all of Earth’s oceans exists under Europa’s icy crust.

Media interested in covering the Europa Clipper launch must apply for media accreditation. Deadlines for accreditation are as follows:
 • U.S. citizens representing domestic or international media must apply for accreditation by 11:59 p.m. EDT, Friday, Sept. 27.
 • International media without U.S. citizenship must apply by 11:59 p.m., Friday, Sept. 20.

Media requiring special logistical arrangements, such as space for satellite trucks, tents, or electrical connections, should email [email protected] by Tuesday, Oct. 1.

A copy of NASA’s media accreditation policy is available online. For questions about accreditation, please email: [email protected]. For other mission questions, please contact NASA Kennedy’s newsroom at 321-867-2468.

Accredited media will have the opportunity to participate in a series of prelaunch briefings and interviews with key mission personnel, including a briefing the week of Sept. 9. NASA will communicate additional details regarding the media event schedule as the launch date approaches.

NASA Invites Social Creators to Experience Launch of Europa Clipper Mission [Sep 3]

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If your passion is to communicate and engage the world online, then this is the event for you! Seize the opportunity to see and share the Europa Clipper mission launch.

A maximum of 50 social media users will be selected to attend this two-day event and will be given access similar to news media.

NASA Social participants will have the opportunity to:
 • View a launch of the SpaceX Falcon Heavy rocket and Europa Clipper spacecraft
 • Tour NASA facilities at Kennedy Space Center
 • Meet and interact with Europa Clipper subject matter experts
 • Meet fellow space enthusiasts who are active on social media

NASA Social registration for the Europa Clipper launch opens on Tuesday, Sept. 3, and the deadline to apply is at 10 a.m. EDT on Monday, Sept. 9. All social applications will be considered on a case-by-case basis.

Offline StraumliBlight

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Launch Dates  Launch Time UTC 
Oct 10th  16:31 
Oct 11th  16:25 
Oct 12th  16:19 
Oct 13th  16:12 
Oct 14th  16:06 
Oct 15th  15:59 
Oct 16th  15:52 
Oct 17th  15:45 
Oct 18th  15:38 
Oct 19th  15:31 
Oct 20th  15:23 
Oct 21st  15:16 
Oct 22nd  15:07 
Oct 23rd  14:53 
Oct 24th  14:50 
Oct 25th  14:43 
Oct 26th  14:35 
Oct 27th  14:27 
Oct 28th  14:19 
Oct 29th  14:12 
Oct 30th  14:04 

Offline StraumliBlight

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NASA Invites Media to Discuss Europa Clipper Mission [Sep 6]

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NASA will hold a media teleconference at 4 p.m. EDT, Monday, Sept. 9, to provide an update on Europa Clipper, a mission that will study whether Jupiter’s moon Europa could be hospitable to life. The teleconference will occur after a key decision point meeting earlier that day regarding next steps for the mission.

Audio of the teleconference will stream live on the agency’s website at:

https://www.nasa.gov/live

Participants in the teleconference include:
 • Nicola Fox, associate administrator, Science Mission Directorate, NASA Headquarters
 • Laurie Leshin, center director, NASA’s Jet Propulsion Laboratory
 • Curt Niebur, Europa Clipper program scientist, NASA Headquarters
 • Jordan Evans, Europa Clipper project manager, NASA’s Jet Propulsion Laboratory

To ask questions during the teleconference, media must RSVP no later than two hours before the event to Molly Wasser at: [email protected]. NASA’s media accreditation policy is available online.

Offline StraumliBlight

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NASA will hold a media teleconference to provide an update on Europa Clipper, a mission studying whether Jupiter’s moon Europa could be hospitable to life. The teleconference will occur after a key decision point meeting regarding next steps for the mission.

Teleconference highlights:
 • Europa Clipper passed Key Milestone Review today.
 • Currently aiming for October 10th launch window.
 • After extensive transistor testing (24/7 for 4 months at JPL), there is "High confidence" that Europa mission can be completed as planned (80 Jupiter orbits/49 flybys of Europa). No trajectory changes planned.
 • Concluded that MOSFET wafers will "heal" and partially recover during part of orbit outside high radiation environment (21 day orbit, 1 day in high radiation zone).
 • Transistor number unspecified across spacecraft but 200 unique applications in different circuits.
 • Next steps at KSC are final closeout items, vehicle fuelling (3000 kg) later this week (>1 week duration), attaching the Payload Attach Fitting and fairing encapsulation.
 • No other issues found, "Technical Green".
 • Transistor annealing improves with temperature, two colder instruments had thermostat software updates to increase heating.
 • "Appropriate voltage margin" to enable a potential extended mission.
 • Unknown on when LC-39A needs to be available to hit start of launch window, though Falcon Heavy mating occurs a 'few days' before launch. Will share info when known.
 • Some instrument calibrations will occur during Mars gravity assist (4 months after launch), uncertain if imagery will be returned before Jupiter insertion to avoid camera damage.
 • Transistor issue first discovered during an informal conversation at JPL, full inventory of all parts completed by the next day and Tiger team stood up by the weekend.
 • Projected mission lifecycle cost is just under $5.2 Billion and if it couldn't launch, next window is in 13 months.
« Last Edit: 09/09/2024 09:16 pm by StraumliBlight »

Offline AndrewM

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 • Concluded that MOSFET wafers will "heal" and partially recover during part of orbit outside high radiation environment (21 day orbit, 1 day in high radiation zone).

Minor tweak - "heal" should be "anneal"

https://ieeexplore.ieee.org/document/8731170
« Last Edit: 09/10/2024 02:43 am by AndrewM »

Offline 1

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 • Concluded that MOSFET wafers will "heal" and partially recover during part of orbit outside high radiation environment (21 day orbit, 1 day in high radiation zone).

Minor tweak - "heal" should be "anneal"

https://ieeexplore.ieee.org/document/8731170

You're not wrong, but the project manager guy said both "heal" and "anneal"; once or twice within sequential sentences. Likely doesn't have more than a cursory understanding of the topic, but I do feel bad for the reporters on call who probably aren't sure what they exactly heard. Especially the Spanish-speaking guy, who was really trying his best to understand. Oh well. Good news is good news. The software change to heat a few of the devices shouldn't be too much of a hit to the energy budget.

Offline ChrisC

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Reminder that there is a whole 'nother Europa Clipper thread here at NSF -- the one in the science section, that's more focused on the spacecraft and science (this thread is more about LV, preps and launch).  There's a lot more discussion of this presser there:

https://forum.nasaspaceflight.com/index.php?topic=47579.msg2622774#msg2622774

Also, from that thread, you all might find this video informative.  It's a presentation (from 2021!) about the efforts of the Europa Clipper radiation team (at JPL and APL).

Microwave Radiation Quality Workshop
Daring Mighty Things: Radiation Hardness Assurance for the Europa Clipper Mission

PSA #1:  Suppress forum auto-embed of Youtube videos by deleting leading 'www.' (four characters) in YT URL; useful when linking text to YT, or just to avoid bloat.
PSA #2:  Users who particularly annoy you can be suppressed in forum view via Modify Profile -> Buddies / Ignore List.  *** See profile for two more NSF forum tips. ***

Offline StraumliBlight

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NASA to Preview Europa Clipper Mission to Jupiter Moon

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NASA will host a news conference at 11 a.m. EDT Tuesday, Sept. 17, at the agency’s Jet Propulsion Laboratory in Southern California to discuss the upcoming Europa Clipper mission to Jupiter’s icy moon Europa.

The briefing will be open to media and will air live on NASA+ and the agency’s website, plus Facebook, X, and YouTube. Learn how to stream NASA content through a variety of platforms, including social media.

Participants in the news conference include:
 • Gina DiBraccio, acting director, Planetary Science Division, NASA Headquarters
 • Jordan Evans, project manager, Europa Clipper, NASA’s Jet Propulsion Laboratory
 • Bonnie Buratti, deputy project scientist, Europa Clipper, JPL
 • Stuart Hill, propulsion module delivery manager, Johns Hopkins University Applied Physics Laboratory
 • Armando Piloto, senior mission manager, NASA’s Launch Services Program

To ask questions by phone, members of the media must RSVP no later than two hours before the start of the event to Rexana Vizza at: [email protected].


Online FutureSpaceTourist

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NASA’s launch stream is already up:


Offline Targeteer

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Press conference started
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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All of Falcon Heavy is expended.  Fastest payload speed after second stage burn.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Launch window extended to 6 Nov due to squeezing performance out of Heavy.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Booster mate starts later this week.  No hot fire test required.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline ugordan

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Fastest payload speed after second stage burn.

To clarify, to be the fastest FH 2nd stage to date.

Offline Targeteer

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Extra Heavy performance from hardware mods allowing more complete burning of propellant, no details proprietary info, and also use of TDRS for data transmission.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Fastest payload speed after second stage burn.

To clarify, to be the fastest FH 2nd stage to date.

Isn't the payload sitting on the 2nd stage :)
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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