Mon, Jul 06, 2015
Airbus Defense and Space Has Now Delivered The LISA Technology Package For The Next ESA Scientific Mission
Complicated inner workings for a complicated proof: with the LISA Technology Package (LTP), Airbus Defense and Space has now delivered the heart of the LISA Pathfinder scientific space probe. LISA Pathfinder will enable the test of advanced technology with which the gravitational waves described by Einstein can be observed from space. Gravitational radiation will allow astronomers to study our universe in a new way and future telescope systems will be able to observe exotic sources, such as colliding super-massive black holes or neutron stars, as never before.
The LTP has been installed into the satellite also built by Airbus Defense and Space. Both the LTP and the satellite itself must now prove their operational suitability in a comprehensive series of tests at IABG in Ottobrunn, near Munich.
LISA Pathfinder is paving the way for a future large space observatory that ultimately will directly observe and precisely measure gravitational waves. These minute distortions in space-time require very sensitive and highly precise measuring technology, the performance of which can only be tested in a space environment.
The LTP consists of a laser interferometer measuring changes in the distance between two precision-engineered gold/platinum test masses, each weighing 4.3 pounds. Once in orbit, the two test masses will be released from a locking mechanism and then held in position with a weak electrostatic field that can be very precisely controlled. The laser interferometer and electrostatic sensors track the motion of the test masses inside the spacecraft, ensuring that the test masses remain undisturbed. The interferometer can measure the relative position and orientation of the test masses – which are around 40 centimeters from each other – with a high degree of precision (< 0.01 nanometers, which is less than one millionth of the width of a human hair).
The launch of the LISA Pathfinder is scheduled for autumn 2015. Once in orbit, a dedicated propulsion module will take LISA Pathfinder to around 1.5 million kilometres towards the Sun, away from any interference from the Earth.
Airbus Defense and Space in the UK was chosen by the European Space Agency (ESA) to build the LISA Pathfinder and is responsible for delivering the integrated turnkey satellite. Airbus Defense and Space in Germany has been commissioned by the ESA and the German Aerospace Center as the systems leader for the LTP, which was developed with contributions from European research institutes.
(Image provided by Airbus Defense and Space)
More News
Chaff Thin, narrow metallic reflectors of various lengths and frequency responses, used to reflect radar energy. These reflectors, when dropped from aircraft and allowed to drift d>[...]
“Today, XB-1 took flight in the same hallowed airspace where the Bell X-1 first broke the sound barrier in 1947. I’ve been looking forward to this flight since founding>[...]
“Teaming up with the EAA and Berlin Express for this event in Cincinnati will give warbird fans a unique opportunity to see the aircraft that helped defend freedom and gave t>[...]
Hazardous Weather Information Summary of significant meteorological information (SIGMET/WS), convective significant meteorological information (convective SIGMET/WST), urgent pilot>[...]
Aero Linx: The Nebraska Aeronautics Commission The Nebraska Aeronautics Commission was created by the 1935 Legislature to oversee the development of aviation in the state. The Comm>[...]