forum.sab-astro.fr

Bonjour,

Dans les sept prochains jours, la NASA lancera deux missions : STS-127 et LRO. A ne pas manquer Car pour les missions STS c'est une des dernières (il reste encore avec cette mission 8 lancement de navette jusqu'à fin 2010). Le but de la mission STS-127 sera de livré le module japonnais Kibo grâce à la navette Endeavour.

Pour ceux qui ne savent pas LRO (Lunar Reconnaissance Orbiter) est une sonde spatiale qui sera mis en orbite autour de lune afin d'étudier la Lune. Objectifs :

- Définir un système géodésique complet pour la Lune,
- Évaluer l'intensité du rayonnement ionisant d'origine cosmique,
- Explorer les régions polaires de la Lune en recherchant éventuellement de la glace d'eau,
- Réaliser une cartographie à haute résolution pour faciliter la recherche de futurs sites d'atterrissage.

Le lancement de STS-127 se fera Samedi à 12h15 heure française. Une bonne heure pour regarder un lancement !

Le lancement de LRO se fera avec un lanceur Atlas V mercredi prochain à environ 22h heure française.

Voila. Bien sur les lancement sont a regarder sur NASA TV

A+

Alex

Hé ... mercredi prochain ... si on se concluait la réunion du Conseil en regardant tous ensemble le lancement de LRO à la SAB ?

Lancement repoussé.

Gaseous Hydrogen Leak Postpones Endeavour's Saturday Launch, Repair Options Evaluated
Sat,

The launch of space shuttle Endeavour's STS-127 mission to the International Space Station is on hold due to a leak associated with the gaseous hydrogen venting system outside the external fuel tank. The system is used to carry excess hydrogen safely away from the launch pad at NASA's Kennedy Space Center in Florida. At 12:26 a.m. EDT Saturday, managers officially scrubbed the launch for at least 96 hours.

The earliest the shuttle could be ready for liftoff is June 17, however there is a range conflict on that date with the scheduled launch of the Lunar Reconnaissance Orbiter/Lunar Crater Observation and Sensing Satellite from Cape Canaveral Air Force Station, Fla.

Mission managers will hold a meeting at 2 p.m. Sunday to discuss the repair options and Endeavour's launch attempt opportunities. A news conference will follow the meeting's conclusion and will air live on NASA Television and the agency Web site.

Ou en français : http://www.google.com/hostednews/afp/ar ... _SNCp0961w

Lancement de STS-127 reprogrammé :

#
Space Shuttle Endeavour's STS-127 Launch Set for June 17

NASA managers have scheduled the next launch attempt of space shuttle Endeavour's STS-127 mission for 5:40 a.m. EDT on Wednesday, June 17.

Endeavour's planned June 13 liftoff was postponed because of a leak associated with the gaseous hydrogen venting system outside the shuttle's external fuel tank. The system is used to carry excess hydrogen safely away from the launch pad.

As a result, the Lunar Reconnaissance Orbiter, or LRO, and Lunar Crater Observation and Sensing Satellite, or LCROSS, are set to lift off together aboard an Atlas V rocket on Thursday, June 18. That launch was moved to June 18 to accommodate Endeavour's June 17 liftoff.

Ou en français : http://www.google.com/hostednews/afp/ar ... mC3v52425w

Ah zut, on n'aura rien pendant la réunion de mercredi

Le lancement de STS-127 a été encore annulé. Et moi qui avait tout programmé pour l'enregistrer

Hydrogen Leak Prevents STS-127 Launch

Space shuttle Endeavour's STS-127 launch today was officially scrubbed at 1:55 a.m. EDT when the same type of gaseous hydrogen leak was detected at the Ground Umbilical Carrier Plate, or GUCP. This is the same location where a similar leak resulted in a launch scrub on June 13.

"We're going to step back and figure out what the problem is and go fix it," said Deputy Space Shuttle Program Manager LeRoy Cain during a briefing afterward. "Once we get it fixed and we're confident that we have a solution that's going to work and allow us to go fly safely, then we'll proceed forward."

Teams followed the same repair method as they did for the GUCP leak encountered during the STS-119 countdown. The STS-119 and STS-127 leaks will both be evaluated in order to determine the cause. Data collected during fueling is expected to help the troubleshooting effort.

Endeavour's next launch attempt for its STS-127 mission is targeted for July 11 at 7:39 p.m. EDT.

En français : http://www.jminforme.ca/international/article/702023