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Morphit, w Ariane 6 joint update report, 16 September 2024
@Morphit@feddit.uk avatar

Doesn’t seem like much info on the APU anomaly:

Analysis shows that one temperature measurement exceeded a pre-defined limit and that the flight software correctly triggered a shut down

Sounds like the fix is changing the start up procedure such that it doesn’t reach the temperature limit. It would be nice to know why it went outside what they deemed safe but I guess it is rocket science.

Buzztiger,

Yes, not really the complete picture of what happened.

Would have there been actual damage to the system or even destruction if the software did not shut down? Or was the temperature threshold set too conservative? Did the thermal simulations not match the observed temperatures and if so why?

What’s the solution to this problem now for the next flight?

threelonmusketeers, w Euclid Galaxy Zoo – help us classify the shapes of galaxies

First came across this project on DeepSkyVideos several years back. Glad to hear that it’s still going!

Buzztiger, w How to watch the Ariane 6 Launch tonight (Tue) at 21:00 CEST (Amsterdam/Berlin)

If it reenables European sovereign and independent access to space it’s a success. Fingers crossed that it’s also as reliably as A5. Commercially I agree.

threelonmusketeers, w Slovenia Sign Agreement to Become 23rd ESA Member State

Nice!

Buzztiger, w ESA Reveals Timeline for Final Push to Maiden Ariane 6 Flight

It’s been too long since we had an operational European launcher. I hope Vega C and A6 are available and reliable by the end of the year. There is quite a queue of new missions, several of them already had to be launched with SpaceX.

Tar_alcaran, w Has the RFA ONE Maiden Flight Slipped to Q4 2024?

You can joke about a German company using a beerkeg rocket, but they take their best VERY seriously.

threelonmusketeers,

Beerkeg rocket is a little funny, but RFA’s engine tests have been promising. Looking forward to seeing what they can accomplish.

CandleTiger, w Farewell, Gaia! Spacecraft operations come to an end

we don’t want it to reactivate in the future and begin transmitting again if its solar panels find sunlight.

Why go to so much work to ensure it can never be turned on again? What harm does it do to move the satellite to a graveyard orbit and just leave it listening?

Alpakka,

My thought as well, seems short sighted. Bandwidth permits from ITU maybe? Risk that someone else could hijack it?

threelonmusketeers, w Polish Space Agency President Sacked Over Falcon 9 Debris Controversy

This was not on my bingo card for this year.

threelonmusketeers, w Testing of Key Callisto Reusable Rocket Demonstrator Component Underway

Glad to see some reusable rocket projects in Europe!

threelonmusketeers, w ESA to Launch In-Orbit Refuelling Demonstration Mission

I wish they mentioned what propellant they’ll be testing. I’m assuming some hypergols or some gas for ion thrusters.

Venutianxspring, w ESA to Launch In-Orbit Refuelling Demonstration Mission

This is exciting news

threelonmusketeers, w ESA Set to Sign Major Argonaut Lunar Lander Contract in Q1

Argonaut will be a multi-role lunar lander capable of delivering up to 1,800 kilograms of cargo to the surface of the Moon.

According to a Phase A/B1 development document published in July 2024, ESA is targeting 2031 for the launch of the first Argonaut mission. The lander is set to launch aboard an ArianeGroup Ariane 64 rocket from the Guiana Space Centre.

Cool! Another lunar lander!

threelonmusketeers, w Last starlight for ground-breaking Gaia

I love that we launched a spacecraft with the sole purpose of measuring the positions of as many stars as possible, just because we could. Well done Gaia, and all the teams who worked on it.

threelonmusketeers, w Timelapse of BepiColombo's sixth Mercury flyby

Mendelssohn’s Hebrides was a beautiful music choice.

The thumbnail says “last flyby”. Is this “last” as in “most recent” or as in “final”?

neme, (edited )

A quick search says final, because it is supposed to enter Mercury’s orbit late this year and then split into two different spacecrafts: Europe’s Mercury Planetary Orbiter and Japan’s Mercury Magnetospheric Orbiter

elucubra, w ESA Enlists Portuguese Navy Submarine to Prepare for Deep Space

They eat cod in space? I mean, the Portuguese eat a lot of cod. They have a bajillion recipes, generally amazing. Don’t get me wrong, I love eating in Portugal, but I imagine that cod must have been a part of the navy selection process. Could be that they have developed a space-ready Belem cakes. If so the astronauts are fucked. They’ll return fat as fuck! Those things are addictive.

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