Effective Manoeuvres Placement Jules Vérne ATV For CruciaI Assessments In the next two times the ATV group will consider out one óf the spacecraft'beds main safety functions - the Collision Prevention Manoeuvre, or CAM. Jules Verne ATV will be equipped with a completely independent program with which ATV can be provided a increase aside from the Space Station if necessary during the build's computerized docking treatment. By Personnel Writers Paris, France (ESA) Scar 13, 2008 Jules Verne ATV effectively performed two boosts today, bringing the spacecraft tó an altitude óf 303 kilometres - half-way between the insertion orbit reached after last Weekend's start and the órbit of the Essential Space Station. The boosts utilized two of the four primary engines on the Automated Transfer Vehicle. Each boost lasted for around 2 mins and supplied a transformation in speed of just over 6 meters/s.
Today's melts away emerged on top of two melts away carried out by mission controllers at ESA't ATV Control Centre last night. 'Everything can be working flawlessly right now on both the major and redundant propulsion stores,' points out Tom Ellwood, ESA's ATV Task Manager. 'The same chain - Propulsion Construction A - that we switched to on Monday was utilized to execute the two increases last night and the two increases nowadays.' 'The whole spacecraft is working amazingly and the actual diploma of control during these increases has been even much better than anticipated,' adds Ellwood. The uses up on Tuesday were later on established to have got carried out to within 0.3% of the focus on.
The manoeuvres overall increased the altitude óf Jules Vérne by approximately 20 km and have positioned the ATV béhind and below thé ISS, which is certainly at an altitude of 340 kilometres, with the two orbiting build separated by a phase angle of around 280 degrees. Following today's 1st burn off at 13:20 CET, the second burn, at 14:01 CET, had been commanded and monitored using ESA's very own Artemis relay satellite, owing to a distance in TDRS relay satellite insurance at that period, making the manoeuvre án all-European action. In the following two days the ATV team will try out out one óf the spacecraft't main protection functions - the Collision Avoidance Manoeuvre, or CAM.
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Jules Verne ATV is definitely outfitted with a completely independent system with which ATV can end up being given a boost away from the Area Train station if necessary during the art's computerized docking process. A CAM would become executed making use of a completely independent control system, sensors and thrusters, maintained by a separate pc which in switch uses software program developed completely individually from the rest of the ATV. 'This can be a manoéuvre which, if éverything else offers failed, really is certainly a 'báck-up of báck-ups.' If things are really going incorrect, it's our supreme safety program,' clarifies Ellwood.
A check of the CAM system is scheduled for 13 Drive, starting at 11:00 CET and running through an comprehensive series of methods during a screen increasing until around 17:00 CET. Objective controllers will then analyse outcomes and confirm that everything is as anticipated. An actual exhibition of the Accident Prevention Manoeuvre is scheduled for Fri, 14 Mar, beginning at 08:56 CET. 'The Camera demonstration is certainly a really critical activity, as it requires switching off the spacecraft's minimal systems and actually traveling by air the spacecraft while relying on the back-up CAM system. We will all end up being monitoring the spacecraft very closely on Fri,' says Bob Chesson, the Head of ESA'h Individual Spaceflight Operations group. The extreme activity for the Jules Verne group comes shortly after a effective recovery operation conducted on the night of 10 Drive, in which a propulsion push chain was re-established after having been instantly shut-down shortly after release. The recovery had been a complex operation, involving technical engineers from leading contractor Astrium, ESA's ATV task team and the combined ESA-CNES mission control team at the ATV Handle Centre.
'We were very worried, but Jules Verne is fine now. I wear't think I've actually seen such close and solid assistance among so many groups of people carried out in like an effective way accomplished so effectively. It had been amazing to watch these men in motion,' says Chesson. Related Links. The articles herein, unless otherwise recognized to become public domains, are Copyright. AFP and UPI Wire Stories are usually copyright Agence Francé-Presse and Unitéd Push International.
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