leonid meteor observer in leo: a proposal for a university microsatellite for the 2001...
TRANSCRIPT
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Leonid Meteor Observer in LEO:Leonid Meteor Observer in LEO:A Proposal for a UniversityA Proposal for a University
MicrosatelliteMicrosatellite for the 2001 for the 2001 LeonidsLeonids
Kazuya Yoshida*
Hajime Yano**
*Tohoku University
**Institute of Space and Astronautical Science (ISAS)
JAPAN
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AbstractAbstractResearchers in Tohoku University and ISAS of Japan with
their international partners are now putting a proposal for auniversity student-built, "bottle-sized" micro-satellite forobservation of the 2001 Leonid meteor shower from thelow Earth orbit. The satellite is as small as a pet bottle tobe launched as a piggy-back payload of commercial rocketlauncher, only a few weeks before the Leonid meteormaximum. It contains all the telemetry, solar powergenerator, thermal control system, attitude control systemas well as scientific instruments including a visible-ultraviolet region photometry camera to conduct bright meteorcounts in the large coverage of the night sky looked downon the earth and a UV spectrograph. This presentationoutlines a mission profile with scientific and educationalobjectives. Sponsors and new partners in the project aremost welcome.
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The ProposalThe Proposal
• Make scientific observation of the 2001 Leonids meteorshower from the low Earth orbit.
• Out of atmosphere, the UV photometry & spectrographsare featured, the meteor impact on the satellite hardwareis evaluated, and a spectacular view of the downstreamshower is photographed.
• The satellite(s) will be built by international universitystudents, suitable for a piggy-back launch, cost effective& quick development, and maximizing scientific andeducational objectives.
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Scientific GoalsScientific Goals
l Count various brightness of meteors in the largecoverage of the night sky looked down on Earth.
l Obtain visible-Ultra Violet images and spectrographsof the meteors and persistent trains, at the highaltitude of the atmosphere.
l Establish three dimensional observation with groundbased observers, for better trajectory identificationand 3D imaging (shape and motion) of a longenduring train.
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Look up the Leonids meteor shower! © 2000 The Space Robotics Lab, Tohoku University
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© 2000 The Space Robotics Lab, Tohoku University
The Leonids observer will fly through the meteor stream.The meteors will not glow out of the atmosphere, this pictureis for an artist’s impression.
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© 2000 The Space Robotics Lab, Tohoku University
When you look down the meteor shower,you’ll find them convergent, opposite tothe radiant. The spectacular view obtainedonly from the out of the atmosphere.
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Satellite DesignSatellite Designl As small as the size of a pet-bottle.
l Solar power plus primary (Li-ion) batteries.
l Mission life: one to several weeks
l As simple as possible in attitude stabilization, bymeans of gravity gradient torques, a passive nutationdamper, and/or a magnetic torquer.
cf. the X-configuration in DODGE satellite, 1967
l UHF/VHF for the command and telemetry. Middle-gain omuni-antenna for the photo image downlink.GPS for the position and attitude determination.
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Possible design ofthe satellite
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The OrbitThe Orbit
l LEO at the altitude of around 300 km orless, as low as good for a few weeks ofmission life.
l Inclination around 35-40 degrees, for theground coverage of Japan, USA, and SouthEurope.
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Background and CurrentBackground and CurrentActivitiesActivities
l Satellite Design Contest Japan Students of Tohoku University were awarded for the idea
of the leonids observer in the 1999 contest.
l University Space System Symposium A US-Japan collaboration frame work for the students
satellite development and launch, where the leonidsobserver was proposed and an international team effort isbeing organized.
l CanSat, S-cube Sat., and BottleSat… A quick step-by-step approach for the USSS participating
students to establish hands-on experiences, from a soda-can sized micro satellite to a bottle size, and larger.
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Call for SponsorCall for Sponsor
lWe need your substantial help!– Launch vehicle on time for the 2001 shower
– Funding to support the satellite development
– A world-wide satellite tracking and telemetry
lWhat is the possible return to thesponsors?– Scientific raw data and premier photo images
– Engineering raw data for the meteor impact on thesatellite
– Science and technical reports
– World-wide public recognition through press releases andweb-site banners
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Contact and more informationContact and more informationl Kazuya YOSHIDA
a person in charge of the mission proposal.
Dr. Eng. Associate Professor of Tohoku University, Japan.The Space Robotics Lab, Dept. of Aeronautics and Space Engineering.
l Hajime YANOa person in charge of the scientific aspect.
Ph.D. in Space Sciences, University of Kent, Canterbury, U.K.Assistant Professor, Planetary Science Division,Institute of Space and Astronautical Science (ISAS), Kanagawa, Japan
E-mail: [email protected] http://www.astro.mech.tohoku.ac.jp/leonids