97 lines
5.1 KiB
Markdown
97 lines
5.1 KiB
Markdown
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---
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title: "Datengarten 39"
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subtitle: "Cubesat Projekt GLORIA"
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date: 2012-03-01T00:00:00+02:00
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---
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GLORIA PILOT MISSION PROPOSAL
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-----------------------------
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Introduction
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------------
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Recently Cubesats have attracted a considerable amount of attention as a
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Spaceborne platformamong agencies interested in executing a short
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duration mission mission. The Cubesats are standardcomponents available
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off-the-shelf, and are relatively simple platform in the sense, that
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they offerless overall control over the device. Nonetheless, a number of
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scientific and engineering objectives have been achieved using
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Cubesats,e.g. Ionospheric ELF measurements, and Reaction Wheel tests.
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Cubesats are cubic platforms measuring 10cm x 10cm x 10cm, that is 1
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liter. The maximum mass is1.33 kg, per unit. At the maximum 3 units can
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be used together. Standard power and communication kits come together
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with cubesats.
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Mission Proposal: Aerosol Monitoring Aerosols are particulate matter in
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the atmosphere, which are known to be influential on climate. Aerosols
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are also to be monitored to observe the spread of natural calamities
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such as Nuclear Disasters and Volcanic Disasters. The Present A-train
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(the remote sensing satellite constellation that passes the equator at
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local timeafternoon, figure 1) monitors atmospheric aerosol using
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backscattered solar radiation, and spectrometric techniques.
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Nonetheless, the monitoring process is not exclusively dedicated to
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aerosols, even though aerosolsare an important player in the Earth
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System. In fact the first exclusive mission after aerosols was the GLORY
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mission from NASA, which did not quite succeed. There exists agencies,
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who are interested in aerosol information. Climate studies recently have
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inclined towards investigation of aerosol processes, for example, see
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\[2\], \[3\] and \[5\]. Disastermitigation agencies also are interested
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in aerosol data, for example see \[4\], \[6\]Mission Operation:
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Photographic systems - The proposed method for aerosol monitoring
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depends on photographic techniques. A syntheticaperture stereo camera
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will photograph the atmosphere using different (commercially available)
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bandpass filters. Another camera will be fitted with a spectrometer
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polarimeter assembly. Multiband monitoring of the following parameters
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will be of interest:
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1. Spectral Pattern of the backscatter, analyzed in spectrometer assembly the includingpower at different wavelengths;
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2. Atmospheric interference and backscatter patterns;
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3. Polarization of backscatter;
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4. Photometric descriptions of aerosol concentration patterns;
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Mission Extension: Upper atmospheric Aerosol - The pilot mission is
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engaged in monitoring the lower atmospheric aerosols (up to tropopause.
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Should the Pilot mission is executed successfully, a possible extension
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may be achieved with new devices inserted in orbit to monitor upper
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atmospheric aerosols.
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Further, a LIDAR based observation of aerosol dispersion may be
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realized.Mission Goals: Science Return - The mission should return the
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following science objectives successfully:
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1. Identification of spectral signature of different aerosol species, at different altitudes,incidence angle, and environment (temperature etc);
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2. Identification of patterns in the aerosol formations;
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3. Identification of energy redistribution pattern at the presence of aerosols, anddifferentiations of patterns with respect to different aerosol species, and environmentalconditions; Mission Goals: Technical Goals - The technical goals include improvisation of sampling and monitoring techniques. The ones that are of primary interest are:
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1. Noise filtration of aerosol monitoring data;
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2. Optimal sampling point identification;
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Mission Goals: Engineering Goals
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1. Calibration of instruments;
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2. Identifying the orbital maneuvers before launch;
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3. Identifying necessary subsystems;
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4. Designing and constructing the mission Control;
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5. Construction of a Cubesat by integrating all subsystems necessary;
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6. Launch of the said Cubesat;
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7. Confirmed Orbital Operation of the said Cubesat for at least 6 months;
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Mission Goals: Commercial Goals
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1. Generation of data utilizable in the context of use by third parties;
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2. Filtering of the data to meet the industry standards;
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3. Generation of secondary data, to meet the requirement of secondary third parties;
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Conclusion - The pilot mission focuses on simplicity and feasibility of
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the mission, while making sure that somescientific data is returned –
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such that the mission is not just a demonstrator. Only one
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scientificpayload is planned.Given the pilot mission is successful, an
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extension is possible, using more satellites, and moresophisticated
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systems.Given the pilot mission is approved, and enough interest is
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generated, immediately shall a MissionConcept Review be released,
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wherein the science goals will be clearly defined. Immediately afterthe
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MCR will follow a System Requirement Review, wherein the mission
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requirements such as,data download rate, orbital height, etc will be
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unambiguously defined.
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More Infos can be found at [1](http://events.ccc.de/camp/2011/wiki/CubeSat_Workshop) and some previous test launch[2](http://universeexplorer.cwahi.net/project-nepa/#intro)
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