2011 07-12 adrian yanes - aalto 1

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Aalto-1 tiene como objetivo ser el primer satélite que Finlandia pondrá en órbita. El proyecto esta desarrollado por la Universidad Aalto (Helsinki, Finlandia). El propósito de su misión científica esta orientado a la toma de imágenes 2D en un determinado espectro electromagnético, así como la monitorización de radiación en el espacio cercano a la tierra. El satélite esta desarrollado dentro del marco universitario, siguiendo un modelo de desarrollo abierto y basado en tecnologías y estándares libres. Ponente: Adrian Yanes, estudiante de la Universidad Europea de Madrid, pertenece al Departamento de Comunicaciones y Redes (Commet) de la Universidad Aalto de Finlandia. Actualmente, se trabaja en el proyecto Aalto-1, diseñando la arquitectura software para el primer proyecto de nanosatélite finlandés.

Transcript of 2011 07-12 adrian yanes - aalto 1

  • 1.Aalto-1The Finnish Student SatelliteAdrian Yanes, Jaan Praks and Aalto-1 Teamhttp://aalto-1.tkk.fi http://blogs.aalto.fi/satellite/

2. HistoryAalto-1The Finnish Student Satellite 3. Aalto University, FinlandEstablished in 2010 Where science and art meettechnology and business. School of Art and Design School of Economics School of Chemical Technology School of Electrical Engineering School of Engineering School of Science 20 000 students 338 professors Aalto-1 The Finnish Student Satellite 4. University Campus in Espoo by Alvar Aalto Aalto-1 The Finnish Student Satellite 5. University Campusin Espooby Alvar AaltoAalto-1The Finnish Student Satellite 6. Space Technology at Aalto UniversityProfessorship of Space Technology was established in1987 in response to Finland joining the EuropeanSpace AgencyIn Finland M.Sc. and Ph.D. education in SpaceTechnology is provided only by Aalto UniversityAalto University (and previously Helsinki University ofTechnology, now part of Aalto University) hasparticipated in space projects in remote sensing,material technology, radio astronomy, robotics, etc.Aalto University presently participates in the EuropeanErasmus Mundus Space Master degree program andhas international Masters program in Radio Scienceand Space TechnologyAalto-1The Finnish Student Satellite 7. Student satellites in TKK (Aalto) 1992 1995 HUTSAT, several year project, reached prototype building phase. 1992 - 1993 FIMSAT , Finnish remote sensing satellite, preliminary design.Aalto-1The Finnish Student Satellite 8. Image ESALatest achievementsAalto-1Aalto University designed SMOS satellite receivers The Finnish Student Satellite 9. Space as anInspiration inEducation Aalto-1 The Finnish Student Satellite 10. Motivation and Challenge for ModernEngineering StudentSpace has inspired human beings from the beginning of civilized times and led us to the greatest adventures of history. We attempt to harness this inspiration to promotethe engineering education in Finland and in Aalto University.Aalto-1The Finnish Student Satellite 11. Student satellites CanSat CubeSat Other designs Constantly growing topic Often open source, open standards, community AAUSAT-II supportedAalborg University, Denmark Spinoff companies selling parts for Cubesat systems Cheap launches Nanosatellites < 10 kg OTS mobile electronics to small satellites Whole satellite industry driving towards smaller sizeAalto-1The Finnish Student Satellite 12. AET 2010 course During the spring term 2010 we arranged experimental course: S-92.3192 Special Assignment in Space Technology Feasibility study of a Nanosatellite Teachers Jaan Praks, Antti Kestil During the course, 7 students made a realistic preliminary design for the first Finnish nanosatellite. The course introduced several new concepts in our teaching The course was project based, all teaching was given in the form of project meetings. The course was Wiki based, using online collaboration as a main cooperation tool. Aalto-1 The Finnish Student Satellite 13. Starting with wild Ideas Nanosatellite with adjoint picosatellites Biological material in nanosatellite Synthetic aperture radiometer as satellite swarm Mobile phone in space Synthetic Aperture Radar (SAR) Deep space mission Propulsion test Asteroid mission Cosmic file serverAalto-1The Finnish Student Satellite 14. Refinement of the goal Make realistic preliminary design for first Finnish nanosatellite Constrains: Design has to be realistic The satellite has to be possible to build mostly with student work (thesis and special assignments) Satellite instruments should be made in Finland (if possible) The satellite main payload and mission should be related to our department research and teaching topics Aalto-1 The Finnish Student Satellite 15. The Main Payload is Found! The satellite started to shape when the main payload was found and selected. Main payload defined scientific goals and most mission parameters. The main payload introducedA miniature imaging also client relationship tospectrometer developed in VTT the project.Technical Research Centre ofFinlandPrototype for usage in UAVAalto-1The Finnish Student Satellite 16. Main Concept Open standardRequirements Community The satellite has to accommodate hyperspectral cameraOrganization The satellite has to be stabilizedPlatform The best orbit is sun synchronous mid-day orbitEducation The satellite has to be affordable The satellite has to be usable in education The satellite should have high speed data link There should be common standards for cooperation and continuity Some subsystems should be availableCubeSat standard based nanosatellite design Aalto-1The Finnish Student Satellite 17. ProjectMIDE student project 2011-2013Project leader Martti HallikainenInternational collaborationProject coordinator Jaan PraksUniversity of TartuSteering group and Science TeamTU DelftCalPolyDomestic collaboration TU Berlin etcAalto University (4 departments)VTT Technical Research Centre of FinlandUniversity of HelsinkiUniversity of TurkuFinnish Meteorological instituteNokiaAboa Space Research Oy (ASRO)Oxford Instruments Analytical Oy Aalto-1 The Finnish Student Satellite 18. Evolutionof Aalto-1 design Aalto-1 The Finnish Student Satellite 19. Aalto-1The Finnish Student Satellite 20. Aalto-1The Finnish Student Satellite 21. Aalto-1The Finnish Student Satellite 22. Aalto-1The Finnish Student Satellite 23. Aalto-1The Finnish Student Satellite 24. Aalto-1The Finnish Student Satellite 25. ScienceSPECTROMETER Aalto-1 The Finnish Student Satellite 26. World smallest hypespectral camera forremote sensing applications by VTTVTT Technical Research Centre ofFinland has developed a tinyhyperspectral camera suitable formany applications based on MEMSFabry-Perot interferometer.Aalto-1 provides a test platform todemonstrate space readiness of thistechnology.The Fabry-Perot Interferometer basedhyperspectral hand held imager by VTT Aalto-1 The Finnish Student Satellite 27. Fabry-Perot interferometer workingprinciple Fabry-Perot Mirrors Object of theImage of the hyperspectralhyperspectralimager imagerFront optics for collimation Focusing optics Order sorting for imaging filterAir gapAalto-1The Finnish Student Satellite 28. Current model for UASIMajor specifications of the spectral cameraSpectral range: 500 900 nmSpectral Resolution: 9..45 nm @ FWHMFocal length: 9.3 mmF-number: 6.8Image size: 5.7 mm x 4.3 mm, 5 MpixMinimum total exposure time: 30 msField of View: 32 (across the flight direction)Ground pixel size: 3.5 cm @ 150 m heightWeight: 350 g (without battery)Size: 62 mm x 61 mm/76mm x 120 mmPower consumption: 3 W Aalto-1 The Finnish Student Satellite 29. VTT miniature spectrometers UASI test flights Aalto-1The Finnish Student Satellite 30. Satelliteborne hyperspectral remote sensing Vegetation Water quality GeologyAalto-1The Finnish Student Satellite 31. SciencePLASMA BRAKE Aalto-1 The Finnish Student Satellite 32. Solar photon sail Each solar photon carries momentum, doubled ifreflected About 9 uN/m2 thrust density for perfect mirror At 1 AU, 1 N sail would be 330x330 m, membranemass 1200 kg if made of 7.6 um polyimide sheet,characteristic acceleration 0.8 mm/s2 Thrust vectoring is possible, but thrust magnitudeand direction change in unison for flat sail Solar sail is old idea (roughly 100 years), implementedin space first time in 2010 (IKAROS, Japan) Technical challenges of solar sail: Membrane should be very thin Membranes support structures should be very lightweightas well Everything must be tightly packaged and folded duringlaunch Aalto-1 The Finnish Student Satellite 33. Electric solar wind sail Solar wind Plasma stream emitted from Sun in all directions Speed 350-800 km/s (lowest in ecliptic plane,higher elsewhere) Mean density 7 cm-3 at Earth Variable, but always present Dynamic pressure ~2 nPa at Earth (1/5000 ofphoton pressure) Electric sail (E-sail) Slowly rotating system of long, thin, conductingand centrifugally stretched tethers which are keptpositively charged (~ +20 kV) by spacecraftelectron gun Only modest amount of electric power needed,obtained from solar panels ~500 nN/m thrust per length For example, 100x20 km tethers, 1 N thrust, 100kg mass, specific acceleration 10 mm/s2 Aalto-1 The Finnish Student Satellite 34. E-sail, traveling in interplanetary space without fuel Aalto-1 The Finnish Student Satellite 35. Electrostatic Plasma BrakeElectrostatic Plasma Brake is designed as an end of lifemission to bring satellite after service down.Based on Electric Space Sail concepts by Pekka Janhunen (FMI)Developed and produced byFinnish Meteorological Institute (FMI)Aalto-1The Finnish Student Satellite 36. Aalto-1The Finnish Student Satellite 37. Image ESA20 000 pieces trackable space junk orbits the Earth Aalto-1The Finnish Student Satellite 38. ScienceRADiation MONitor Aalto-1 The Finnish Student Satellite 39. Radiation environment in Earth orbit Radiation in LEO is the most significant threat to electronics. Need for simple and small radiation detector. Trapped proton environment on LEO needs to be taken into account in the design of any spacecraft. Trapped proton environment anisotropiesAalto-1The Finnish Student Satellite 40. Payloads:Radiation MonitorUniversity of Helsinki Sensor unit based on Si detector and CsI(TI) scintillator Readout electronics consist of a pulse shaping and peak-hold circuitry with a pre-amplifier signal being digitised with high sampling rate FPGA based logic to count particle events hitting the sensorAalto-1The Finnish Student Satellite 41. BepiColombo SIXSBepiColombo is ESA mission to Mercury. Spacecraft will set off in 2014, arrives to Mercury 2020, planned operation till 2022. Onboard will be the pioneering SIXS instrument (Solar Intensity X-ray and particle Spectrometer) developed in a Finnish consortium. The main task of SIXS is to provide observations of X-ray and particle radiation on Mercurys surface.Consortium: Finnish Meteorological