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Rosetta, Philae and Comet 67P/Churyumov-Gerasimenko.

Vicomt

By Vicomt
in Science & Spaceflight

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Frida Space

Frida Space

Posted
Posted
It did orbit the comet, but it's no stable orbit. Just let it fly long enough and the orbit will deteriorate and escape the comet once again.

That's what I meant by "a pretty stable orbit". After all, no orbit is 100% stable, anywhere: even the orbits of satellites around the Earth slowly decade.

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Camacha

Camacha

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Posted (edited)

The stream keeps bogging down here, and is fine after a reload. Not sure what is going on there. I cannot imagine that many people watching already and reloading should not fix that is it was the problem.

Edited by Camacha
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Sky_walker

Sky_walker

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Posted
The steam keeps bogging down here, and is fine after a reload. Not sure what is going on there. I cannot imagine that many people watching already and reloading should not fix that is it was the problem.

It's your connection. Didn't boggle down for me since it went live.

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nekogod

nekogod

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...And you thought Ions were slow

Sometime in the next hour, Rosetta will perform the ‘pre-separation manoeuvre’. This is a thruster burn to place it on course for the separation point, when it will release Philae.

The burn is expected to last about 6 minutes. It will alter Rosetta’s velocity by about 0.46m/s and send it heading in towards the comet.

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Tw1

Tw1

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3 min until separation!

Cold gas thrusters on lander are non-operational - from ESA broadcast. Things looking even more complicated now. :(

Not much they can do about that is there? Makes sense to try anyway.

Not clear, we need a banana for scale.

I don't think ESA has that mod.....

Edited by Tw1
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*Aqua*

*Aqua*

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What they did and want to do:

Philae_Grafik.jpg

Translation:

02:35 - Ground control station gave the Go!

04:35 - Activated first science instrument of Philae

08:00 - Orbiter control center gave the Go!

08:21 - Activated the science instruments MUPUS, SESAME and CONSERT*

09:35 - Philae undocked

09:44 - Deploying landing gear // unconfirmed because of signal delay

11:35 - Start communication between lander and orbiter

15:35 - First image will be shoot

16:33 - Landing

20:30 - End of communication between lander and orbiter

Time zone is UTC+1, signal delay is ~30 minutes.

* MUPUS - MUlti-PUrpose Sensors for Surface and Sub-Surface Science

SESAME - Surface Electric Sounding and Acoustic Monitoring Experiment

CONSERT - COmet Nucleus Sounding Experiment by Radiowave Transmission

Edited by *Aqua*
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