esa

threelonmusketeers, 2 miesiące temu 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!

threelonmusketeers, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

x.com/esa/status/1810792159295180959

The tech-demo phase of Ariane 6 is still in progress but has shown an unexpected result which will only affect the end of the mission.

On the webcast, they stated that the Auxiliary Propulsion Unit (APU) switched off shortly after it it powered up after SECO-2. Without the APU, they have no way to settle the propellants in the tanks, and thus can’t reignite the upper stage for the final burn.

From the live camera feed, it looks as though the upper stage was spinning, so there may have been some loss of control as well.

threelonmusketeers, 3 miesiące temu (edited 3 miesiące temu) w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Webcast commentary is back!

Edit: SES-2 confirmed!

Edit2: SECO-2. Nominal orbit confirmed. First payload deployments scheduled for T+1:05.

Edit3: Confirmation of cubesat deployments confirmed! Next up will be SES-3 at T+2:37.

ricdeh, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Upper stage separation

https://lemmy.world/pictrs/image/98da06dd-d85e-4dd9-8d8f-186e2a7ed0b9.jpeg

threelonmusketeers, 3 miesiące temu

That was one of the more cinematic stage separations I’ve seen in a while. Beautiful shot from the upper stage camera.

Buzztiger, 3 miesiące temu

Yes beautiful!

clothes, 3 miesiące temu

I’m impressed by the quality of their onboard cameras, without the help of starlink.

threelonmusketeers, 3 miesiące temu

Seems like they might be between ground stations right now. Haven’t seen live video from the upper stage for a few minutes. Telemetry still looks good though.

threelonmusketeers, 3 miesiące temu (edited 3 miesiące temu) w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Looks like we have SECO-1 and nominal orbit insertion!

Edit: Webcast commentary scheduled to resume T+52 minutes for a circularization burn and the first set of payload deployments.

Tovervlag, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Thank you for the info. I’m watching because of you posting this.

threelonmusketeers, 3 miesiące temu

You’re welcome! Glad people find these threads useful!

threelonmusketeers, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

MECO, stage separation, and stage 2 ignition confirmed!

threelonmusketeers, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Fairing jettison confirmed!

ricdeh, 3 miesiące temu (edited 3 miesiące temu) w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

All nominal, successful booster separation, fairing jettisoned

threelonmusketeers, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

SRB separation confirmed!

threelonmusketeers, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Décollage!

threelonmusketeers, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

ESA webcast is live! youtube.com/watch?v=B0oFpOJaIYc

clothes, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

FYI to everyone: there are several fake “ESA Official” YouTube channels running deepfaked Elon crypto scam streams that claim to be “Ariane 6 Launch Stream”.

They’re nothing new, but sharing in case anyone hasn’t seen it before. Those aren’t real streams!

Buzztiger, 3 miesiące temu w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Rocket fuelled up now , so everything going ahead smoothly…

Buzztiger, 3 miesiące temu 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.