Author Topic: LIVE: ATV-1 Jules Verne launch and opening orbits - March 9, 2008  (Read 185372 times)

Offline erioladastra

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"Anyone know how early they will ingress the Jules Verne?"

Fairly quickly to put in some scrubbers, then the next day after that.  Specific days are still being worked out.

Offline rdale

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This just in, from Traci Watson of USA Today... In today's (Thursday March 27) paper:

"...the congestion in space can lead to headaches. The European cargo ship and the shuttle use the same radar frequency for communications [radar?], forcing the European ship's launch to be delayed until after Endeavour blasted off. [uhh, ATV went first.] After lifting off, the Jules Verne could not approach the station but had to loiter in orbit, burning precious fuel..."

It it really that big of a fuel hit to wait for shuttle departure? Where'd she get this from?



Offline catfry

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Quote
rdale - 27/3/2008  6:58 AM

This just in, from Traci Watson of USA Today... In today's (Thursday March 27) paper:

"...the congestion in space can lead to headaches. The European cargo ship and the shuttle use the same radar frequency for communications [radar?], forcing the European ship's launch to be delayed until after Endeavour blasted off. [uhh, ATV went first.] After lifting off, the Jules Verne could not approach the station but had to loiter in orbit, burning precious fuel..."

It it really that big of a fuel hit to wait for shuttle departure? Where'd she get this from?



According to the ISS On-Orbit Status Reports, several stationkeeping burns had been planned for the ATV while in it's position 2000 km ahead of the ISS although due to the precise maneuvering of the vehicle, many, perhaps all, were cancelled.
Don't know how much fuel we are really talking about.
However, if the ATV hadn't needed to maneuver to this parking position and subsequently maneuver back behind ISS (happening right now) due to the STS-123 mission, it probably could have saved some kgs of fuel.

Traci seems to confuse the fact that ATV and Shuttle both use the TDRSS for comms, (although ATV also use the european Artemis satellite), and the only delay is about when the ATV can dock.

EDIT: Also, this the first mission was MEANT to use oodles of fuel, due to all the demonstration maneuvering that has been done and is planned, in contrast with the more straightforward 'normal' operations in the future. There's plenty of margin.

Offline Lawntonlookirs

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If I have this correct, Jules Verne, which is 2000 km (1200 miles) ahead of the ISS.  At 15:19 Central European Time (CET) (10:19 EDT) on Saturday, Jules Verne will start demonstration day 1 and maneuver from in front of the ISS and end up 3500 km (2170 miles) behind the ISS.  At the end of demonstration day 1 both Jules Verne and the ISS will be in the same orbit.  

The results of demonstration day 1 will be assessed and if everything is okay the will prepare for demonstration day 2.

Demonstration Day 2 will start on March 31 at 14:46 Central European Saving Time (CEST) (9:46 EDT).  This requires Jules Verne to approach the ISS and then when about 12 meters from the ISS a command will be given stop the ATV.  A command will then be given to have Jules Verne back away from the ISS to a point about 19 meters away.  Finaly a command will be given for Jules Verne to escape at which time it should back away from the ISS to a point about 15.5 km (10 miles) where it will park.  If every thing goes okay, than Jules Verne will start its docking procedure at 13:44 Central European Saving Time CEST) (8:46 EDT) on April 3.  

It is kind of confusing because the information from ESA is showing 2000 m and 3500 m. and it appears the European Time zones changes to Daylight Savings time on Sunday morning.

It would be interesting to see what the final schedule will be.
Everyman is my superior in that I may learn from him.  Albert Einstein

Offline dsmillman

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Spaceflightnow has a detailed timeline at:


     http://spaceflightnow.com/ariane/v181/080327demotimeline.html




Online jacqmans

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Press Release
N°19-2008

Paris, 28 March 2008

Follow live Jules Verne ATV's first attempt to dock with the International Space Station

After several days spent in a parking orbit 2000 km ahead of the ISS, Jules Verne ATV is now ready to join up with the International Space Station. This first docking attempt can be followed live on 3 April 2008 from 15:30 CEST onwards from one of the European participating centres.

One hour and 6 minutes after lift-off of the Ariane-5 ES launcher from Europe's spaceport in Kourou, French Guiana, on 9 March 2008 at 05:03 CET, Jules Verne ATV was placed in a circular orbit at 51.6° relative to the equator. At that point in time, the Guiana Space Centre transferred mission authority to ESA's ATV Control Centre located at the CNES site in Toulouse. Jules Verne ATV was then positioned 2000 km from the ISS while awaiting US Space Shuttle Endeavour's return to Earth on the night of 26 to 27 March.

In the next few days, the CNES and ESA operational teams, supported by the teams of the ATV prime contractor, Astrium, will carry out manoeuvres aimed at positioning the ATV near the ISS and beginning the final approach phase.

The two main manoeuvres (Demoday 1 and Demoday 2), currently scheduled for 29 and 31 March, are intended to demonstrate the ATV's ability to dock entirely safely with the ISS and, in particular, to perform an escape manoeuvre commanded by the ISS crew when Jules Verne is just 12 metres away from the station.

The docking of Jules Verne ATV is scheduled for 3 April  at 16:41 CEST. The final decision on whether to proceed with this manoeuvre will be taken by the ISS Mission Management Team in consultation with the European partners only 24 hours before the operations.
For this first attempt, ESA and CNES will be organising live transmission of the event from the ATV Control Centre at CNES in Toulouse to the various European sites.

The ATV Control Centre at CNES in Toulouse will act as focal point for media in France and will  be home to experts who will be on hand for interviews and background information.


For more information and updates on Jules Verne ATV, including live streaming of Demoday 2 on 31 March (video feed courtesy NASA TV)  and the first docking attempt on 3 April see: http://www.esa.int/atv.
Jacques :-)

Offline eeergo

Is any kind of coverage for the DemoDays 1 and 2 expectable? Jules Verne will get fairly close to be seen by the cameras on ISS, especially on DemoDay 2, and the escape burns should be pretty spectacular.
-DaviD-

Offline ckiki lwai

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Quote
eeergo - 28/3/2008  8:16 PM

Is any kind of coverage for the DemoDays 1 and 2 expectable? Jules Verne will get fairly close to be seen by the cameras on ISS, especially on DemoDay 2, and the escape burns should be pretty spectacular.

As Jacques posted, demoday 2 will be covered on NASA TV.
I'm looking also forward to it!
Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events. - Robert Heinlein

Offline Ambassador

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NASA TV schedule for demo day 2 and docking...
http://www.nasa.gov/multimedia/nasatv/MM_NTV_Breaking.html

Offline catfry

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"ATV orbital rehearsals for ISS docking", a ESApod videofile.

http://www.esa.int/SPECIALS/ATV/SEMW86R03EF_0.html

Offline ckiki lwai

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I made a new thread, since this one is quite big now, I hope you guys find that a good idea ;)

link to the new one:
http://forum.nasaspaceflight.com/forums/thread-view.asp?tid=12484&posts=1&start=1
Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events. - Robert Heinlein

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