Planck et Herschel c'est pour le 14 Mai

Now that additional checks on the Ariane 5 ECA launcher have been completed, Arianespace and ESA have set the launch date of Herschel and Planck for Thursday 14 May.

Read more at:
http://www.esa.int/esaSC/SEMB9SANJTF_index_0.html

sur les tablettes, merci

Préparations du lancement de Herschel / Planck pour le 14 mai

Les équipes techniques au Centre européen des operations spatiales (ESA/ESOC) à Darmstadt en Allemagne se préparent pour le lancement de Herschel / Planck à bord d'Ariane 5. Le décollage de la fusée est prévu pour jeudi, 14 mai, 15h12 (heure de Paris) à partir du port spatial européen à Kourou.
Une série d'opérations techniques critiques sont prévues avant et durant la phase de lancement. Dès la mise en orbite des deux satellites par le lanceur, le centre de l'ESA à Darmstadt va reprendre le contrôle des opérations de vol.

Suivez les détails des préparations et le lancement du 14 mai par le ESA Twitter Feed (en anglais), et le jour du décollage, aussi par web-streaming :

http://www.esa.int/herschelplanck

Source ESA

ARIANESPACE FLIGHT - HERSCHEL and PLANCK

The launch readiness review (RAL) took place in Kourou on Tuesday, May 12, 2008 and authorized count-down operations for the HERSCHEL & PLANCK launch.

For its second launch of the year, Arianespace will orbit two scientific satellites for the European Space Agency: the Herschel space telescope and the Planck scientific observatory.

The two satellites are being launched towards the Lagrange Point (L2), once again demonstrating the operational capabilities of Ariane 5. This is the only launch vehicle on the commercial market today capable of launching two payloads simultaneously, and handling a complete array of missions, from commercial launches into geostationary orbit, to scientific missions into special orbits.

It will be launched from the Ariane launch complex N° 3 (ELA3), in Kourou, French Guiana.

The Ariane 5 ECA launcher lift-off for this flight is scheduled during the day of May 14, 2009 as soon as possible within the following launch window:

UTC
Paris, France
Kourou, French Guiana
Washington, D.C., USA
Moscow, Russia

Between 1:12 p.m.
and 2:07 p.m. on
May 14, 2009
Between 3:12 p.m.
and 4:07 p.m. on
May 14, 2009
Between 10:12 a.m.
and 11:07 a.m. on
May 14, 2009
Between 9:12 a.m.
and 10:07 a.m. on
May 14, 2009
Between 5:12 p.m.
and 6:07 p.m. on
May 14, 2009

Live
http://www.videocorner.tv/

merci, je serai là

Herschel and Planck launcher declared fit for launch
12 May 2009

The Ariane 5 that will loft Herschel and Planck into space has been declared ready for launch following the conclusion of the Launch Readiness Review held on 9 May and a close-out review held on 12 May. The launch is scheduled for 15:12 CEST on 14 May.

http://www.esa.int/SPECIALS/Operations/SEMKMF0YDUF_0.html


This provides formal authorisation by Arianespace for launch on 14 May 2009.


Source ESA

C'est parti....
mms://a1095.v137368.c13736.e.vm.akamaistream.net/7/1095/13736/41ebe648/arianeesp.download.akamai.com/13736/wm/193_GB.wmv

Arianespace launches two spacecraft on missions to explore the universe

Ariane 5 provided another demonstration of its operational flexibility in Arianespace service today by placing two payloads on their way to deep space missions that will provide new insights into the origins and future of our universe.

Departing the Spaceport in a rare morning liftoff, the heavy-lift Ariane 5 carried its Herschel and Planck passengers into a very elliptical orbit with a perigee of 270 km. and an apogee of nearly 1.2 million km. This will allow the two European Space Agency scientific spacecraft to subsequently perform the maneuvers enabling them to reach the Sun-Earth system’s second Lagrange point (L2), which is 1.5 million km. from Earth.

Ariane 5 lifted off on time from French Guiana at 10:12 a.m., and climbed out under a bright sun that penetrated the scattered clouds. The weather was “green” for the final countdown phase, and heavy rains of earlier in the morning had moved clear of the Spaceport for the liftoff. Tracking cameras followed the Ariane 5 downrange, including the separation of its two solid boosters – which occurred 2 min. 18 sec. into the mission at an altitude of 67 kilometers.

The flight was Arianespace’s first with payloads destined for L2, and it follows other missions performed by the company with spacecraft designed to explore the Moon, planets and comets – as well as support human space exploration with the International Space Station.

In post-launch comments from the Spaceport’s mission control center, Arianespace Chairman & CEO Jean-Yves Le Gall said today’s mission also marked a notable 30th straight success for Ariane 5.

Source ESA

Astroman a écrit:

...today’s mission also marked a notable 30th straight success for Ariane 5.

Source ESA

il faut combien de succès consécutifs pour être "man rated"?

Dominique M. a écrit:

Astroman a écrit:

...today’s mission also marked a notable 30th straight success for Ariane 5.

Source ESA

il faut combien de succès consécutifs pour être "man rated"?

Pour ça, j'aime beaucoup l'approche de http://www.spacelaunchreport.com/reliability2009.txt qui fait un vrai calcul de stat (First level Bayesian estimate of mean predicted probability
of success for next launch attempt (k+1)/(n+2) where k is the
number of successful events and n is the number of trials) pour évaluer la probabilité de succès du prochain vol d'un lanceur donné, très différente de la proba observée à ce jour.
Certains résultats sont du coup assez étonnants (colonne Pred. rate) comme LM 4 qui malgré tous ses succès (17/17) n'a "que" 0,95 ou Soyuz-U qui makgré ses 20 échecs est quand même à 0,97.
On verra avec le vol d'aujourd'hui, mais A5 monte péniblement à 0,90...
Bon, mais tout ça ce ne sont que des stats ; Ariane 5 est le meilleur, c'est notoire !

crédit Photo ARIANESPACE/ESA

crédit Photo ARIANESPACE/ESA

crédit Photo ARIANESPACE/ESA

crédit Photo ARIANESPACE/ESA

crédit Photo ARIANESPACE/ESA

Herschel et Planck vont bien...

http://www.esa.int/esaCP/SEMFBDZVNUF_index_0.html