Jules Verne on track for long journey to ISS
Following an overnight recovery operation, Jules Verne ATV's propulsion system has successfully been restored to full robustness. The spacecraft has since performed the first orbital manoeuvres necessary to set up phasing with the International Space Station.
Flight control and engineering support teams analysed the data coming from the Automated Transfer Vehicle's on board computers which, after activation of the propulsion system following Sunday's launch, had detected a significant difference in pressure between the oxidiser and the fuel that compose the propellant and had disabled part of the propulsion system. A course of action was implemented overnight to resume the nominal mission.
In a complex operation, commands to re-integrate an electronics box which drives that part of the propulsion system were up-linked to the spacecraft from within the ATV Control Centre in Toulouse, France. After the entire propulsion system was disabled, all four propulsion chains were progressively enabled, thereby restoring full failure tolerance.
Jules Verne ATV successfully performed a series of orbital manoeuvres earlier this afternoon. The two manoeuvres using the main engines, which occurred at 15:54 CET (14:54 UT) and 17:06 CET (16:06 UT), initiated the orbital phasing. Two additional orbit manoeuvres tomorrow afternoon will complete the phasing boost.
Mission controllers in Toulouse are now rescheduling activities to take Jules Verne ATV to its parking orbit in front of the ISS, including a demonstration of the spacecraft's Collision Avoidance Manoeuvre capability. Once in the parking orbit, Jules Verne ATV will wait for the completion of the STS-123 Shuttle mission at the Space Station, before proceeding with the rendezvous demonstration manoeuvres and the final rendezvous and docking.
Jules Verne ATV remains on schedule for docking with the ISS on 3 April.
Markus Bauer | alfa
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
Layered 2D material improves efficiency for solar cells and LEDs
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...