esa

threelonmusketeers, 4 miesiące temu (edited 4 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.

threelonmusketeers, 4 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 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, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

x.com/esa/status/1830596526705365214

Watch the launch of @CopernicusEU #Sentinel2C on #VV24, the last Vega flight from Europe’s Spaceport, live on #ESAwebTV on 4 September from 02:30 BST/03:30 CEST (liftoff scheduled at 02:50 BST/03:50 CEST).

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Launch postponed by one day: x.com/esa/status/1831104291710607603

#VV24 update: the launch of @CopernicusEU #Sentinel2C from Europe’s Spaceport in French Guiana has been postponed.

Checks are being conducted to confirm a new launch attempt on 5 September at 02:50 BST/03:50 CEST.

More details from @Arianespace ⬇️

x.com/Arianespace/status/1831099750906765795

Due to electrical issues on the ground links #VV24 launch chronology was interrupted.

Checks are being conducted to confirm a new launch attempt tomorrow Sept. 4 at 10:50 pm local time in Kourou.

The launcher & its passenger Sentinel-2C are in stable & safe conditions

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Liftoff!

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Stage 1 separation and stage 2 ignition confirmed.

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Stage 2 separation and stage 3 ignition confirmed. Fairing separation confirmed.

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Stage 3 separation and stage 4 ignition confirmed.

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Stage 4 shutdown confirmed. Still a circularization burn remains.

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Circularization burn underway.

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Sentinel 2C payload separation confirmed!

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Acquisition of signal from Sentinel 2C confirmed!

threelonmusketeers, 2 miesiące temu w Sentinel-2C Launch Thread (final flight of Vega)

Webcast ending.

Goodbye Vega, hello Vega C!

proper, 2 miesiące temu w Juice confirms that Earth is habitable

“We are obviously not surprised by these results… it would have been extremely concerning to find out that Earth was not habitable! But they indicate that MAJIS and SWI will work very successfully at Jupiter, where they will help us investigate whether the icy moons could be potential habitats for past or present life.”