Commit 18ebb511dac01eb40e7926c054e9bb0f3fd3cea8

Authored by Elena.Budnik
1 parent 1a503f5c

spase descriptors for Freja

Instrument/CDPP-AMDA/FREJA/ESP.xml 0 → 100644
... ... @@ -0,0 +1,50 @@
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<Spase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.spase-group.org/data/schema" xsi:schemaLocation="http://www.spase-group.org/data/schema http://amda.irap.omp.eu/public/schemas/spase-2_3_1.xsd">
  3 + <Version>2.3.1</Version>
  4 + <Instrument>
  5 + <ResourceID>spase://CNES/Instrument/CDPP-AMDA/FREJA/ESP</ResourceID>
  6 + <ResourceHeader>
  7 + <ResourceName>ESP</ResourceName>
  8 + <AlternateName>Electron Spectrometers</AlternateName>
  9 + <ReleaseDate>2004-07-20T21:10:13Z</ReleaseDate>
  10 + <Description>The electron data are a collection of detections made by the MATE and TESP instruments on Freja.
  11 +
  12 + The MAgnetic imaging Two-dimensional Electron spectrometer (MATE) measures electron energy and angular distributions in the energy range
  13 + 0.1 - 100 keV. MATE consist of a 360° field-of-view sector magnet energy analyser with 90° deflection angle for simultaneous energy and
  14 + pitch angle determination. The sampling rate for the full energy range is 10 ms, and acollimator system enables measurements of the
  15 + energy spectrum at 16 energies , and 30 angular sectors. Unfortunately, the MATE instrument was not deployed completely and was to 1/3
  16 + blocked by the Freja spacecraft itself and only every 4th angular sector have data. Also, the MATE instrument did only work properly up
  17 + to orbits around 1600, where after only the integrated flux of the high-energy electrons could be obtained. In addition, the lowest energy
  18 + channels was found to give uncertain data.
  19 +
  20 + The Two-dimensional Electron SPectrometer (TESP) on Freja consists of a "top-hat" style sweeping electrostatic analyser. The energy range
  21 + of 20-25 keV is covered in 32 sectors to complete a spectrum. Depending on instrument mode, 16 or 32 spectra are returned each second
  22 + (31.25 ms resolution). The angular field-of-view is the full 360° and electrons are counted in 32 equally spaced bins, yielding an angular
  23 + resolution of 11°. The entrance aperture of the TESP also contains a set of electrostatic deflectors which allows the plane of acceptance
  24 + to be "warped" into a cone.
  25 + The TESP experiment started working around orbit 720, when the instrument software were sent tot the spacecraft after the launch. The TESP
  26 + data covers only energies up to 25 keV, but gives nervertheless important information regarding the high-energy electrons. Since low energy
  27 + electrons may cause an excess emission of secondary electrons (and thereby mitigate charging), the information from this experiment is very
  28 + useful. Note that the energy channels below about 30 eV was found to give uncertain data.</Description>
  29 + <Contact>
  30 + <PersonID>spase://SMWG/Person/Manfred.H.Boehm</PersonID>
  31 + <Role>PrincipalInvestigator</Role>
  32 + </Contact>
  33 + <Contact>
  34 + <PersonID>spase://SMWG/Person/Jan-Erik.Wahlund</PersonID>
  35 + <Role>ProjectScientist</Role>
  36 + </Contact>
  37 + <InformationURL>
  38 + <Name>Technical Note</Name>
  39 + <URL>https://space.fmi.fi/spee/docs/wp110_tn1.pdf</URL>
  40 + </InformationURL>
  41 + </ResourceHeader>
  42 + <InstrumentType>Spectrometer</InstrumentType>
  43 + <InvestigationName/>
  44 + <OperatingSpan>
  45 + <StartDate>1992-11-03T00:00:00</StartDate>
  46 + <StopDate>1994-10-04T23:59:59</StopDate>
  47 + </OperatingSpan>
  48 + <ObservatoryID>spase://CNES/Observatory/CDPP-AMDA/Freja</ObservatoryID>
  49 + </Instrument>
  50 +</Spase>
... ...
Instrument/CDPP-AMDA/FREJA/MFE.xml 0 → 100644
... ... @@ -0,0 +1,51 @@
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<Spase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.spase-group.org/data/schema" xsi:schemaLocation="http://www.spase-group.org/data/schema http://amda.irap.omp.eu/public/schemas/spase-2_3_1.xsd">
  3 + <Version>2.3.1</Version>
  4 + <Instrument>
  5 + <ResourceID>spase://CNES/Instrument/CDPP-AMDA/FREJA/MFE</ResourceID>
  6 + <ResourceHeader>
  7 + <ResourceName>MFE</ResourceName>
  8 + <AlternateName>Magnetic Field Experiment</AlternateName>
  9 + <ReleaseDate>2004-07-20T21:10:13Z</ReleaseDate>
  10 + <Description>The Swedish satellite, FREJA, was launched 6 October, 1992 into a 63 degree inclination, 600x1700 km altitude orbit.
  11 + The satellite is in the auroral zone a significant amount of the time. Ionospheric current systems are monitored by the Johns
  12 + Hopkins University Applied Physics Laboratory (JHU/APL) Magnetic Field Experiment (MFE). The MFE for the FREJA spacecraft was
  13 + provided as the only US principal experiment by the JHU/APL in cooperation with the NASA/Goddard Space Flight Center.
  14 +
  15 + The FREJA MFE includes a custom JHU/APL-designed Forth Reduced Instruction Set Computer (FRISC) microprocessor. The purpose of
  16 + the MFE computer is to allow extensive on board processing which has traditionally been performed after-the-fact on recorded data.
  17 + One of the many on board functions is an auroral zone field-aligned current detector patterned after the UARS MFE peak detector AC
  18 + channel. The 1.5 - 128 Hz bandpassed channel of the spin axis fluxgate magnetometer sensor is monitored by a one second standard
  19 + deviation calculation. When this result exceeds a programmable threshold (presently set at 100 nT) a trigger word is set which
  20 + circulates through the satellite telemetry system and can be used to initiate various experiment data taking. This MFE trigger value
  21 + is time-tagged, stored in the spacecraft housekeeping telemetry, and may be transmitted by an auxiliary, limited bandwidth transmitter
  22 + and received in near real time by a simple, portable antenna and receiver. The advantage of this detection approach is the simplicity
  23 + of the analysis and the direct, automatic and real time correlation with current systems previously determined by extensive ground
  24 + processing. This detector information can be received real-time or transferred via network or telephone from the receiving station
  25 + in Kiruna, Sweden using PC-based communications packages. </Description>
  26 + <Contact>
  27 + <PersonID>spase://SMWG/Person/Lars.Eliasson</PersonID>
  28 + <Role>GeneralContact</Role>
  29 + </Contact>
  30 + <Contact>
  31 + <PersonID>spase://SMWG/Person/L.J.Zanetti</PersonID>
  32 + <Role>ProjectScientist</Role>
  33 + </Contact>
  34 + <InformationURL>
  35 + <Name>Freja F3H data archive at IRF</Name>
  36 + <URL>http://www2.irf.se/program/sspt/Freja/</URL>
  37 + </InformationURL>
  38 + <InformationURL>
  39 + <Name>MF experiment webpage at JHUPL</Name>
  40 + <URL>http://sd-www.jhuapl.edu/Freja/</URL>
  41 + </InformationURL>
  42 + </ResourceHeader>
  43 + <InstrumentType>Magnetometer</InstrumentType>
  44 + <InvestigationName/>
  45 + <OperatingSpan>
  46 + <StartDate>1992-10-24T00:00:00</StartDate>
  47 + <StopDate>1995-02-15T23:59:59</StopDate>
  48 + </OperatingSpan>
  49 + <ObservatoryID>spase://CNES/Observatory/CDPP-AMDA/Freja</ObservatoryID>
  50 + </Instrument>
  51 +</Spase>
... ...
NumericalData/CDPP-AMDA/FREJA/ESP/fja-sc-charg.xml 0 → 100644
... ... @@ -0,0 +1,109 @@
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<Spase xmlns="http://www.spase-group.org/data/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.spase-group.org/data/schema http://amda.irap.omp.eu/public/schemas/spase-2_3_1.xsd">
  3 + <Version>2.3.1</Version>
  4 + <NumericalData>
  5 + <ResourceID>spase://CNES/NumericalData/CDPP-AMDA/FREJA/ESP/fja-sc-charg</ResourceID>
  6 + <ResourceHeader>
  7 + <ResourceName>charging events</ResourceName>
  8 + <AlternateName></AlternateName>
  9 + <ReleaseDate>2004-02-22T01:49:00Z</ReleaseDate>
  10 + <Description>This dataset provides data of a total of 291 spacecraft surface charging events detected during the operation of the Freja satellite.
  11 + The dataset provides peak charging level, light conditions and charging duration.
  12 + The Freja mission objective was to study the polar (high latitude) auroral processes and was therefore
  13 + equipped with a highly advanced plasma payload package, and the spacecraft itself was designed to be
  14 + as electrically clean as possible. Such a payload package is, of course, also suitable for spacecraft charging studies.
  15 + Numerous surface charging events did indeed occur with negative charging levels as large as -2000 Volts. For detailed analysis
  16 + of the Freja charging events, see workpackage reports WP110, WP120 and WP130 (https://space.fmi.fi/spee/docs/), and take contact
  17 + withe the Swedish Institute of Space Physics, Uppsala, before using any of the data presented here. The data interpretation may
  18 + be heavily dependent on instrumental capabilities and measurement mode types.
  19 + </Description>
  20 + <Contact>
  21 + <PersonID>spase://CNES/Person/J.Wahlund</PersonID>
  22 + <Role>ProjectScientist</Role>
  23 + </Contact>
  24 + </ResourceHeader>
  25 + <AccessInformation>
  26 + <RepositoryID>spase://CDPP/Repository/AMDA</RepositoryID>
  27 + <Availability>Online</Availability>
  28 + <AccessRights>Open</AccessRights>
  29 + <AccessURL>
  30 + <URL>http://amda.cdpp.eu</URL>
  31 + </AccessURL>
  32 + <Format>NetCDF</Format>
  33 + </AccessInformation>
  34 + <ProviderName>ESA</ProviderName>
  35 + <ProviderResourceName>https://space.fmi.fi/spee/sc_charging_old/freja_ascii.dat</ProviderResourceName>
  36 + <InstrumentID>spase://CNES/Instrument/CDPP-AMDA/FREJA/ESP</InstrumentID>
  37 + <MeasurementType>EnergeticParticles</MeasurementType>
  38 + <TemporalDescription>
  39 + <TimeSpan>
  40 + <StartDate>1992-11-03T09:36:19</StartDate>
  41 + <StopDate>1994-04-10T01:39:40</StopDate>
  42 + </TimeSpan>
  43 + <Cadence>PT60S</Cadence>
  44 + </TemporalDescription>
  45 + <ObservedRegion>Earth.Magnetosphere</ObservedRegion>
  46 + <Caveats></Caveats>
  47 + <Parameter>
  48 + <Name>orbit nb</Name>
  49 + <ParameterKey>fja_sc_orb</ParameterKey>
  50 + <Description>Orbit number</Description>
  51 + <RenderingHints>
  52 + <DisplayType>TimeSeries</DisplayType>
  53 + </RenderingHints>
  54 + </Parameter>
  55 + <Parameter>
  56 + <Name>q_peak</Name>
  57 + <ParameterKey>fja_sc_q</ParameterKey>
  58 + <Description>peak charging level</Description>
  59 + <Units>V</Units>
  60 + <RenderingHints>
  61 + <DisplayType>TimeSeries</DisplayType>
  62 + </RenderingHints>
  63 + </Parameter>
  64 + <Parameter>
  65 + <Name>duration</Name>
  66 + <ParameterKey>fja_sc_dur</ParameterKey>
  67 + <Description>Event duration</Description>
  68 + <Units>s</Units>
  69 + <RenderingHints>
  70 + <DisplayType>TimeSeries</DisplayType>
  71 + </RenderingHints>
  72 + </Parameter>
  73 + <Parameter>
  74 + <Name>sun conditions</Name>
  75 + <ParameterKey>fja_sc_sun</ParameterKey>
  76 + <Description>Sunlight conditions (eclpise=1, Sunlight = 0, Both = 2)</Description>
  77 + <RenderingHints>
  78 + <DisplayType>TimeSeries</DisplayType>
  79 + </RenderingHints>
  80 + </Parameter>
  81 + <Parameter>
  82 + <Name>density</Name>
  83 + <ParameterKey>fja_sc_n</ParameterKey>
  84 + <Description>Electron density</Description>
  85 + <Units>cm-3</Units>
  86 + <RenderingHints>
  87 + <DisplayType>TimeSeries</DisplayType>
  88 + </RenderingHints>
  89 + </Parameter>
  90 + <Parameter>
  91 + <Name>e- distr. fun.</Name>
  92 + <ParameterKey>fja_sc_df</ParameterKey>
  93 + <Description>Electron spectra</Description>
  94 + <Units>1/(cm² s² str eV)</Units>
  95 + <RenderingHints>
  96 + <DisplayType>Spectrogram</DisplayType>
  97 + </RenderingHints>
  98 + </Parameter>
  99 + <Parameter>
  100 + <Name>angle</Name>
  101 + <ParameterKey>fja_sc_ang</ParameterKey>
  102 + <Description>Freja spin axis angle vs. magnetic field direction</Description>
  103 + <Units>deg</Units>
  104 + <RenderingHints>
  105 + <DisplayType>TimeSeries</DisplayType>
  106 + </RenderingHints>
  107 + </Parameter>
  108 + </NumericalData>
  109 +</Spase>
... ...
NumericalData/CDPP-AMDA/FREJA/MFE/fja-mfe-1hz.xml 0 → 100644
... ... @@ -0,0 +1,137 @@
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<Spase xmlns="http://www.spase-group.org/data/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.spase-group.org/data/schema http://amda.irap.omp.eu/public/schemas/spase-2_3_1.xsd">
  3 + <Version>2.3.1</Version>
  4 + <NumericalData>
  5 + <ResourceID>spase://CNES/NumericalData/CDPP-AMDA/FREJA/MFE/fja-mfe-1hz</ResourceID>
  6 + <ResourceHeader>
  7 + <ResourceName>1 Hz data</ResourceName>
  8 + <AlternateName></AlternateName>
  9 + <ReleaseDate>2004-02-22T01:49:00Z</ReleaseDate>
  10 + <Description>survey data of the DC peturbation magnetic field at 1 Hz resolution.
  11 + These data are for survey purposes only, they are not intended for publication or formal presentation.
  12 + The data result from the removal of the Earth's main field and removing the spacecraft spin motion,
  13 + and are plotted in geomagnetic coordinates with the N-axis +ve toward magnetic north and the E-axis +ve
  14 + to the east. For reference, we used the system described in:
  15 +
  16 + Eccentric Dipole Coordinates For Magsat Data Presentation,
  17 + D.D.Wallis, J.R. Burrows, T.J. Hughes and M.D.Wilson
  18 + Geophysical Research Letters,
  19 + Vol. 9 No.4, pp 353-356, April 1982.
  20 +
  21 + Such data are mainly useful for a qualitative assessment of the DC data and "eyeballing" interesting geophysical phenomena.
  22 +
  23 + Please contact Dr. L. J. Zanetti (zanetti@ jhuapl.edu) before using any of this data in scientific analyses or publications.
  24 + </Description>
  25 + <Contact>
  26 + <PersonID>spase://SMWG/Person/L.J.Zanetti</PersonID>
  27 + <Role>ProjectScientist</Role>
  28 + </Contact>
  29 + </ResourceHeader>
  30 + <AccessInformation>
  31 + <RepositoryID>spase://CDPP/Repository/AMDA</RepositoryID>
  32 + <Availability>Online</Availability>
  33 + <AccessRights>Open</AccessRights>
  34 + <AccessURL>
  35 + <URL>http://amda.cdpp.eu</URL>
  36 + </AccessURL>
  37 + <Format>NetCDF</Format>
  38 + </AccessInformation>
  39 + <ProviderName>JHUPL</ProviderName>
  40 + <ProviderResourceName>http://sd-www.jhuapl.edu/Freja/1Hz_Data/</ProviderResourceName>
  41 + <InstrumentID>spase://CNES/Instrument/CDPP-AMDA/FREJA/MFE</InstrumentID>
  42 + <MeasurementType>MagneticField</MeasurementType>
  43 + <TemporalDescription>
  44 + <TimeSpan>
  45 + <StartDate>1992-10-24T00:00:00</StartDate>
  46 + <StopDate>1995-02-15T23:59:59</StopDate>
  47 + </TimeSpan>
  48 + <Cadence>PT1S</Cadence>
  49 + </TemporalDescription>
  50 + <ObservedRegion>Earth.Magnetosphere</ObservedRegion>
  51 + <Caveats></Caveats>
  52 + <Parameter>
  53 + <Name>b_geo</Name>
  54 + <ParameterKey>fja_mfe_b</ParameterKey>
  55 + <Description>magnetic field in geographic coordinates</Description>
  56 + <RenderingHints>
  57 + <DisplayType>TimeSeries</DisplayType>
  58 + </RenderingHints>
  59 + <Structure>
  60 + <Size>3</Size>
  61 + <Element>
  62 + <Name>bx</Name>
  63 + <Index>1</Index>
  64 + <ParameterKey>fja_mfe_b(0)</ParameterKey>
  65 + <Units>nT</Units>
  66 + </Element>
  67 + <Element>
  68 + <Name>by</Name>
  69 + <Index>2</Index>
  70 + <ParameterKey>fja_mfe_b(1)</ParameterKey>
  71 + <Units>nT</Units>
  72 + </Element>
  73 + <Element>
  74 + <Name>bz</Name>
  75 + <Index>3</Index>
  76 + <ParameterKey>fja_mfe_b(2)</ParameterKey>
  77 + <Units>nT</Units>
  78 + </Element>
  79 + </Structure>
  80 + </Parameter>
  81 + <Parameter>
  82 + <Name>perturbation</Name>
  83 + <ParameterKey>fja_mfe_pert</ParameterKey>
  84 + <Description>DC perturbaton magnetic field, North, East and Parallel components</Description>
  85 + <RenderingHints>
  86 + <DisplayType>TimeSeries</DisplayType>
  87 + </RenderingHints>
  88 + <Structure>
  89 + <Size>3</Size>
  90 + <Element>
  91 + <Name>north</Name>
  92 + <Index>1</Index>
  93 + <ParameterKey>fja_mfe_pert(0)</ParameterKey>
  94 + </Element>
  95 + <Element>
  96 + <Name>east</Name>
  97 + <Index>2</Index>
  98 + <ParameterKey>fja_mfe_pert(1)</ParameterKey>
  99 + </Element>
  100 + <Element>
  101 + <Name>parallel</Name>
  102 + <Index>3</Index>
  103 + <ParameterKey>fja_mfe_pert(2)</ParameterKey>
  104 + </Element>
  105 + </Structure>
  106 + <Ucd/>
  107 + <Units>nT</Units>
  108 + </Parameter>
  109 + <Parameter>
  110 + <Name>altitude</Name>
  111 + <ParameterKey>fja_mfe_alt</ParameterKey>
  112 + <Description>spacecraft altitude in geographic coordinates</Description>
  113 + <Units>km</Units>
  114 + <RenderingHints>
  115 + <DisplayType>TimeSeries</DisplayType>
  116 + </RenderingHints>
  117 + </Parameter>
  118 + <Parameter>
  119 + <Name>latitude_geo</Name>
  120 + <ParameterKey>fja_mfe_lat</ParameterKey>
  121 + <Description>spacecraft latitude in geographic coordinates</Description>
  122 + <Units>deg</Units>
  123 + <RenderingHints>
  124 + <DisplayType>TimeSeries</DisplayType>
  125 + </RenderingHints>
  126 + </Parameter>
  127 + <Parameter>
  128 + <Name>longitude_geo</Name>
  129 + <ParameterKey>fja_mfe_lon</ParameterKey>
  130 + <Description>spacecraft longitude in geographic coordinates</Description>
  131 + <Units>deg</Units>
  132 + <RenderingHints>
  133 + <DisplayType>TimeSeries</DisplayType>
  134 + </RenderingHints>
  135 + </Parameter>
  136 + </NumericalData>
  137 +</Spase>
... ...
Observatory/CDPP-AMDA/Freja.xml 0 → 100644
... ... @@ -0,0 +1,48 @@
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<Spase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.spase-group.org/data/schema" xsi:schemaLocation="http://www.spase-group.org/data/schema http://amda.irap.omp.eu/public/schemas/spase-2_3_1.xsd">
  3 + <Version>2.3.1</Version>
  4 + <Observatory>
  5 + <ResourceID>spase://CNES/Observatory/CDPP-AMDA/Freja</ResourceID>
  6 + <ResourceHeader>
  7 + <ResourceName>Freja</ResourceName>
  8 + <AlternateName>The Freja magnetospheric satellite</AlternateName>
  9 + <ReleaseDate>2004-08-01T20:05:54Z</ReleaseDate>
  10 + <Description>Freja was launched on October 6th 1992 as a "piggyback" payload on a Long March 2D (CZ-2C) rocket from the Jiuquan Satellite Launch Center in China.
  11 + The satellite is in an orbit between 601 and 1756 km at 63° inclination. Freja is a sun-pointing spinner with a 2.2 m diameter and 214kg dry mass.
  12 + Freja images the aurora and measures particles and fields in the upper ionosphere and lower magnetosphere. The satellie has been in operation for more than 1000 days.
  13 +
  14 + Instruments :
  15 + * (F1) Electric Fields, Royal Institute of Technology, Sweden
  16 + * (F2) Magnetic Fields, Applied Physics Laboratory/Johns Hopkins University, United States
  17 + * (F3C) Cold Plasma, National Research Council of Canada, Canada
  18 + * (F3H) Particles; Hot Plasma, Swedish Institute of Space Physics, Kiruna, Sweden
  19 + * (F4) Waves, Swedish Institute of Space Physics, Uppsala, Sweden
  20 + * (F5) Auroral Imager, University of Calgary, Canada
  21 + * (F6) Electron Beam, Max-Planck Institute, Germany
  22 + * (F7) Particle Correlator, Max-Planck Institute, Germany</Description>
  23 + <Contact>
  24 + <PersonID>spase://SMWG/Person/Lars.Eliasson</PersonID>
  25 + <Role>GeneralContact</Role>
  26 + </Contact>
  27 + <Contact>
  28 + <PersonID>spase://CNES/Person/L.J.Zanetti</PersonID>
  29 + <Role>ProjectScientist</Role>
  30 + </Contact>
  31 + <InformationURL>
  32 + <URL>Freja Mission page at IRFU</URL>
  33 + <URL>https://www.space.irfu.se/freja/</URL>
  34 + </InformationURL>
  35 + <InformationURL>
  36 + <Name>Freja MFE experiment page at JHUPL</Name>
  37 + <URL>http://sd-www.jhuapl.edu/Freja/</URL>
  38 + </InformationURL>
  39 + </ResourceHeader>
  40 + <Location>
  41 + <ObservatoryRegion>Earth.Magnetosphere</ObservatoryRegion>
  42 + </Location>
  43 + <OperatingSpan>
  44 + <StartDate>1992-10-06T00:00:00</StartDate>
  45 + <StopDate>1995-02-15T23:59:59</StopDate>
  46 + </OperatingSpan>
  47 + </Observatory>
  48 +</Spase>
... ...