Skip to main content. All Content. Additional Files. The overall objective is to monitor the solar diameter, the differential rotation, the solar constant, etc. Orbit: SSO of km altitude at hours. Provision of imagery at GSD of 2. The AlSAT-2 contract covers the design and development of two satellites. Objective: demonstration of an operational mission.
It is based on a customized Myriade platform. Astrium refers to this platform version as Astrosat Payload: The objective is to study of the mechanisms that generate upward lightning in the terrestrial atmosphere observe coupling phenomena sprites, particles between upper atmosphere, ionosphere and magnetosphere during storms. The payload is constituted by electric and magnetic antennas, Langmuir probe, 2 cameras, photometer and X, g and electrons sensors.
Objective: fundamental physics experiment to test the general theory of relativity. This mission is dedicated to observation of solar flares and of coronal mass ejection from sun. Table 2 : Overview of missions using the Myriade platform. However, on Feb. CCC can operate up to five Myriade missions in parallel. The network operates automatically. Tatry, M. Clair, F. Alary, H. Luneau, M. Solar Orbiter. Soyuz in Guiana. Spaceship FR. Syracuse 4. T T2l2. Themis launcher.
U Ulysses. V Vega. Vega C. Venus Express. X Xmm-Newton. The data it collected yielded more than scientific articles. Mission's news feed Demeter pulling out all the stops Launched in , Demeter is set to reach a new milestone on completing 2 years in orbit.
The amplitude of the collected impulse dV is proportional to the charge Q and therefore to the deposited energy. The impulse is amplified and shaped. But the length of the trailing edge of the impulse of several ms is incompatible with the need to be able to encode them with a repetition frequency reaching up to 0. The shaping circuit reduces the length of the impulses, and modifies them in order to allow a numerical encoding.
Simultaneously, the analog signals are applied to a low level threshold discriminator. The digitalization of the analog signal is made by an ADC Analog-to-Digital Converter that carries out a linear analog to digital conversion of dV in channels. The instrument consists of two Langmuir probes, one is cylindrical the other is spherical with a 6 cm diameter segmented probe. The plasma density and temperature are determined from the Langmuir probe current-voltage curve.
The objective is the measurement of the vector components of the Earth's electric field in the frequency range from DC to 3 MHz. EFI consists of an antenna system featuring four spherical electrodes placed at the end of 8 m deployable booms. The objective is the measurement of ionospheric plasma parameters density, temperature, and energy distribution. IAP is a two-analyzer spectrometer measurering the ion density, composition, temperature and flow velocity.
IAP provides a nearly continuous survey of the main parameters of the thermal ion population with two main objectives. The first one is to detect disturbances in the ionosphere that may arise from the coupling between seismic events on the ground and the upper atmosphere and ionosphere.
The second objective is to provide with a sufficient time resolution the ionospheric parameters such as the plasma density and the ion composition that are needed to analyze the plasma wave data from the ICE and IMSC experiments. In addition the IAP observations allow to build a large database that can be used in the frame of space weather studies, for example to analyze the dynamics of the mid-latitude ionosphere in response to magnetic storms. There are two main modes of operation: a burst mode which is triggered when the satellite is above given seismic zones, and elsewhere a survey mode.
For example the corresponding recorded data by the wave experiment are:. Three possible combinations of frequency and time resolutions can be selected by telecommand.
In both modes, the three electric components are recorded in the ULF range, and either a magnetic or an electric component in the VLF range is used as input for an onboard neural network which will detect whistlers.
Cussac, F. Buisson, M. Lamy, M. Chrameau, D. Laurichesse, M. Grondin, R. Dassaud, J. Issler, L. Ries, A. De Latour, M. Bastien Thiry, F. Serene, H.
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