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ODIN Mission

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ODIN Mission Odin – a new Third Party Mission Martin Krynitz, Swedish Space Corporation 19 June 2007, ESRIN GSCB Workshop Designing, launching and operating space systems A brief Odin History • 1989 – Astronomers propose to look for H2O and O2 in star formation regions with submm receivers. • 1990 – Aeronomy added, planned to use the radiometer for stratospheric studies. • Negotiations between Sweden, Finland, France and Canada • 2000 – Satellite built by SSC • 2001 – Launch from Russia • 2001 – First scientific observations • 2003 – Expected End of Life • 2007 – Odin added as ESA third party mission. Designing, launching and operating space systems What is Odin? • A small and very compact spacecraft – 240 kg. • A low cost project – 50 M€ including payload and launch. • An international collaboration (France, Finland, Canada, Sweden). • An astronomy mission to learn about our solar system and star formation. • An aeronomy mission to study the ozone related chemistry in the stratosphere and the distribution of water up into the mesosphere. • A dual purpose mission with high pointing accuracy • Since 2007 a Third Party Mission with ESA Designing, launching and operating space systems The Odin spacecraft Designing, launching and operating space systems OSIRIS (Optical Spectrograph and Infra Red Imaging System) • Aeronomy instrument: • Aerosols • Molecules not covered by submm receivers • Spectrometer – 280-800 nm – 1 nm resolution • IR Imager – 3 channnels – 2 @ 1.27 μm – 1 @ 1.53 μm – 10 nm bandwidth Designing, launching and operating space systems The Odin mm/submm radiometer Designing, launching and operating space systems Odin atmospheric mission Designing, launching and operating space systems Odin astronomy No O2 – less than 1/1000 of expected Water isotope ratio in comets Comets around other stars? Water on Mars Infall of water “the holy grail of star formation” Primordial molecules - LiH Designing, launching and operating space systems Odin Achievements • Aeronomy (Atmosphere) – Chlorine Chemistry Æ O3 depletion – Recovery of O3 layer is followed over several years (Montreal protocol) –H2O↑ as key green house gas in atmosphere • Astronomy – Measurement of H2O↑ + O2 (shows same distribution of isotopes) – Mars atmosphere 1/1000 of H2O↑ content • >100 audited publications, 20 PhD, Herschel Designing, launching and operating space systems Odin operations • SSC operates the spacecraft: – The Kiruna Esrange ground station (10 passes/day) – The Odin Control Centre (OCC) at Esrange – The Odin Mission Control Centre (MCC) in Solna • Operations are carried out on 24h basis, partly automatic and manned during office hours only, including the satellite command and control Designing, launching and operating space systems OCC at Esrange • Monitoring of satellite status, data reception, data distribution to the archive • uploading of commands • frequent orbit determination and attitude reconstruction • Level 0 science data are distributed to, and further processed by, the respective instrument processing centre Designing, launching and operating space systems Data acquisition • 10 passes per day received on weekdays • Extension to weekends is offered • Manned during work hours but automated at nights/ weekend • Daily upload of star catalogue needed Designing, launching and operating space systems MCC (Solna) • MCC is the interface to the scientists and responsible for the scientific observation programme implementation • long term planning and system performance evaluation is performed, and possible adjustments decided • Quick-looks on parameters potentially influencing science data are made Designing, launching and operating space systems Archive and Data Access • Data from Esrange via fibre (ftp) to POP in Stockholm • All Odin data and data products are stored at the Centre for Parallel Computers, PDC, at the Royal Institute of Technology in Stockholm, Sweden. • Data products are available at the instrument processing centres for all ESA category-1 users requesting the data • Primary OSIRIS data access service will be provided by Chalmers • Copy of key data sets to ESA archive Designing, launching and operating space systems Data Processing Centres • Level 0 science data which are distributed to, and further processed by, the respective instrument processing centre: – Radiometer: Processing of Level 0 data to calibrated spectra (Level 1) Onsala Space Observatory, Sweden Æ CNES level 2 – OSIRIS: University of Saskatchewan, Saskatoon, Canada Æ FMI level 2 • Funded by respective Agency Designing, launching and operating space systems Data Policy • Before: Only available to the participants of the Mission • Since this is a TPM (5/2007): all existing validated L 2 data products, and the associated L1 data, is made available to the cat-1 users • All aeronomy data are stored at PDC and will be made available to ESA on request and before any deletion • Data access for ESA Cat-1 users performed under ESA responsibility Designing, launching and operating space systems Information Policy • The centres will support ESA with mission descriptions for its web pages • ESA is being updated about ongoing and planned Odin science events, and specific events with relevance to Odin datasets Designing, launching and operating space systems User support • Chalmers, and University of Saskatchewan, will support the ESA Order Desk • Chalmers will keep ESA updated about ongoing and planned Odin science events • SSC will grant via ESA a copy of the whole Odin aeronomy dataset • Data are today available from the archives using internet access Designing, launching and operating space systems Interoperability • Example of retrofit • User can access all data by contacting ESA (copy of key data with ESA) • New users interface via ESA • Best to have an integrated interface from start, but later integration possible • Typical example for external missions Designing, launching and operating space systems Conclusions • Odin is an example of successful satellite mission that has exceeded its designed life 2 years • Though excellent scientific results are being produced SNSB is unable to continue full funding • Thanks to ESA Odin can continue to operate as a TPM • The climate change relevant aeronomy data is now as a result available to a much wider community • Odin is also an example for lean operations while using the satellite with high intensity Designing, launching and operating space systems Designing, operating and launching space systems.
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