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Rosetta LAP EFL
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NumericalData/AMDA/Rosetta/LAP/ros-lap-asw.xml
| ... | ... | @@ -23,6 +23,10 @@ potential. Timestamps represent the middle of the corresponding sweeps.</Descrip |
| 23 | 23 | <Name>RPC LAP User Guide</Name> |
| 24 | 24 | <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-UG.PDF</URL> |
| 25 | 25 | </InformationURL> |
| 26 | + <InformationURL> | |
| 27 | + <Name>ROSETTA RPC-LAP to Planetary Science Archive Interface Control Document</Name> | |
| 28 | + <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-EAICD_2_0_1_PDF_A.PDF</URL> | |
| 29 | + </InformationURL> | |
| 26 | 30 | </ResourceHeader> |
| 27 | 31 | <AccessInformation> |
| 28 | 32 | <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID> |
| ... | ... |
| ... | ... | @@ -0,0 +1,115 @@ |
| 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://cdpp.irap.omp.eu/AMDA-NG/public/schemas/spase-amda-1_2_0.xsd"> | |
| 3 | + <Version>2.2.6</Version> | |
| 4 | + <NumericalData> | |
| 5 | + <ResourceID>spase://CDPP/NumericalData/AMDA/Rosetta/LAP/ros-lap-efl</ResourceID> | |
| 6 | + <ResourceHeader> | |
| 7 | + <ResourceName>e-field component (EFL)</ResourceName> | |
| 8 | + <AlternateName>Electric field component, calculated on ground by | |
| 9 | +taking the difference between floating probe measurements on both probes and | |
| 10 | +dividing by distance, (V_P2-V_P1)/L. Positive value refers to electric field | |
| 11 | +pointing in the direction from probe 1 to probe 2.</AlternateName> | |
| 12 | + <ReleaseDate>2016-10-15T14:08:29Z</ReleaseDate> | |
| 13 | + <Description> | |
| 14 | +The two LAP probes could be used to measure the component of the electric field along their | |
| 15 | +separation vector, by measuring the voltage of them, taking the difference and dividing by the | |
| 16 | +separation distance (5.0 m). Each probe could be fed by a bias current as is typically done on | |
| 17 | +electric field instruments in tenuous plasmas, or be disconnected from the bias circuitry to | |
| 18 | +ensure a good zero bias current (floating probes) as is typically done on sounding rockets. | |
| 19 | +Bias currents were used in the early part of the mission, but when the comet ionosphere | |
| 20 | +developed, the floating mode was found to give much more consistent data. Only data from | |
| 21 | +the floating mode have been used for providing E-field data, and only when both probes are | |
| 22 | +sunlit. | |
| 23 | + | |
| 24 | +The booms are not equal in length (2.24 and 1.62 m) and mounted on a big spacecraft (solar | |
| 25 | +panel wingspan 32 m), so one cannot expect LAP to provide a useful DC electric field estimate. | |
| 26 | +A moving average of the E-field over 32 s is therefore subtracted from the data in the EFL files. | |
| 27 | +The effective bandwidth of the data therefore is about 0.03 Hz to 20 Hz, the upper | |
| 28 | +limit set by the analog anti-aliasing filters. Note that the filtering may distort the lowest | |
| 29 | +frequencies. | |
| 30 | + | |
| 31 | +There are no external comparison data for assessing the absolute accuracy of the LAP E-field | |
| 32 | +measurements. The data themselves look very clean and well behaved [Karlsson et al., 2017; | |
| 33 | +André et al, 2017], with very little of common mode signal remaining, despite the s/c poten tial | |
| 34 | +being both high and highly variable. The technique with floating probes is proven on numerous | |
| 35 | +sounding rockets in the terrestrial ionosphere [Maynard, 1998]. | |
| 36 | +</Description> | |
| 37 | + <Contact> | |
| 38 | + <PersonID>spase://CDPP/Person/Anders.Eriksson</PersonID> | |
| 39 | + <Role>PrincipalInvestigator</Role> | |
| 40 | + </Contact> | |
| 41 | + <Contact> | |
| 42 | + <PersonID>spase://CDPP/Person/Erik.Johansson</PersonID> | |
| 43 | + <Role>DataProducer</Role> | |
| 44 | + </Contact> | |
| 45 | + <InformationURL> | |
| 46 | + <Name>RPC LAP User Guide</Name> | |
| 47 | + <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-UG.PDF</URL> | |
| 48 | + </InformationURL> | |
| 49 | + <InformationURL> | |
| 50 | + <Name>ROSETTA RPC-LAP to Planetary Science Archive Interface Control Document</Name> | |
| 51 | + <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-EAICD_2_0_1_PDF_A.PDF</URL> | |
| 52 | + </InformationURL> | |
| 53 | + </ResourceHeader> | |
| 54 | + <AccessInformation> | |
| 55 | + <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID> | |
| 56 | + <Availability>Online</Availability> | |
| 57 | + <AccessRights>Restricted</AccessRights> | |
| 58 | + <AccessURL> | |
| 59 | + <URL>http://amda.cdpp.eu</URL> | |
| 60 | + </AccessURL> | |
| 61 | + <Format>NetCDF</Format> | |
| 62 | + </AccessInformation> | |
| 63 | + <ProviderName>PSA</ProviderName> | |
| 64 | + <ProviderResourceName>RO-C-RPCLAP-5-xxx-DERIV2-V1.0</ProviderResourceName> | |
| 65 | + <InstrumentID>spase://CDPP/Instrument/AMDA/Rosetta/LAP</InstrumentID> | |
| 66 | + <MeasurementType>ThermalPlasma</MeasurementType> | |
| 67 | + <TemporalDescription> | |
| 68 | + <TimeSpan> | |
| 69 | + <StartDate>2014-03-24T08:12:59Z</StartDate> | |
| 70 | + <StopDate>2016-09-30T10:31:16Z</StopDate> | |
| 71 | + </TimeSpan> | |
| 72 | + <Cadence_Min>PT0.05S</Cadence_Min> | |
| 73 | + <Cadence_Max>PT35S</Cadence_Max> | |
| 74 | + </TemporalDescription> | |
| 75 | + <Parameter> | |
| 76 | + <Name>e-field comp</Name> | |
| 77 | + <ParameterKey>ros_lap_efl</ParameterKey> | |
| 78 | + <Description>Electric field component, calculated on ground by | |
| 79 | + taking the difference between floating probe measurements on both probes and | |
| 80 | + dividing by distance, (V_P2-V_P1)/L. Positive value refers to electric field | |
| 81 | + pointing in the direction from probe 1 to probe 2.</Description> | |
| 82 | + <Ucd/> | |
| 83 | + <Units>mV/m</Units> | |
| 84 | + <RenderingHints> | |
| 85 | + <DisplayType>TimeSeries</DisplayType> | |
| 86 | + </RenderingHints> | |
| 87 | + <FillValue>-1.e+09</FillValue> | |
| 88 | + </Parameter> | |
| 89 | + <Parameter> | |
| 90 | + <Name>sampling conf</Name> | |
| 91 | + <ParameterKey>ros_lap_efl_s</ParameterKey> | |
| 92 | + <Description>Number that describes the exact combination of onboard | |
| 93 | +s/w averaging and downsampling. The exact values are pointers into a table | |
| 94 | +that describes both the number of samples that are averaged over and the | |
| 95 | +downsampling rate</Description> | |
| 96 | + <Ucd/> | |
| 97 | + <Units/> | |
| 98 | + <RenderingHints> | |
| 99 | + <DisplayType>TimeSeries</DisplayType> | |
| 100 | + </RenderingHints> | |
| 101 | + </Parameter> | |
| 102 | + <Parameter> | |
| 103 | + <Name>quality flag</Name> | |
| 104 | + <ParameterKey>ros_lap_efl_f</ParameterKey> | |
| 105 | + <Description>Quality flag constructed as the sum of multiple terms, | |
| 106 | +depending on what quality related effects are present. Each digit is either in | |
| 107 | +the range 0 (best) to 7 (worst), or 9 (not used).</Description> | |
| 108 | + <Ucd/> | |
| 109 | + <Units/> | |
| 110 | + <RenderingHints> | |
| 111 | + <DisplayType>TimeSeries</DisplayType> | |
| 112 | + </RenderingHints> | |
| 113 | + </Parameter> | |
| 114 | + </NumericalData> | |
| 115 | +</Spase> | |
| ... | ... |
NumericalData/AMDA/Rosetta/LAP/ros-lap-ned.xml
| ... | ... | @@ -32,6 +32,10 @@ does not prevent plasma electrons from reaching the Langmuir probes. |
| 32 | 32 | <Name>RPC LAP User Guide</Name> |
| 33 | 33 | <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-UG.PDF</URL> |
| 34 | 34 | </InformationURL> |
| 35 | + <InformationURL> | |
| 36 | + <Name>ROSETTA RPC-LAP to Planetary Science Archive Interface Control Document</Name> | |
| 37 | + <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-EAICD_2_0_1_PDF_A.PDF</URL> | |
| 38 | + </InformationURL> | |
| 35 | 39 | </ResourceHeader> |
| 36 | 40 | <AccessInformation> |
| 37 | 41 | <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID> |
| ... | ... |
NumericalData/AMDA/Rosetta/LAP/ros-lap-nel.xml
| ... | ... | @@ -24,6 +24,10 @@ measurements or floating potential measurements on one probe. A value of |
| 24 | 24 | <Name>RPC LAP User Guide</Name> |
| 25 | 25 | <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-UG.PDF</URL> |
| 26 | 26 | </InformationURL> |
| 27 | + <InformationURL> | |
| 28 | + <Name>ROSETTA RPC-LAP to Planetary Science Archive Interface Control Document</Name> | |
| 29 | + <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-EAICD_2_0_1_PDF_A.PDF</URL> | |
| 30 | + </InformationURL> | |
| 27 | 31 | </ResourceHeader> |
| 28 | 32 | <AccessInformation> |
| 29 | 33 | <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID> |
| ... | ... |
NumericalData/AMDA/Rosetta/LAP/ros-lap-usc.xml
| ... | ... | @@ -34,6 +34,10 @@ |
| 34 | 34 | <Name>RPC LAP User Guide</Name> |
| 35 | 35 | <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-UG.PDF</URL> |
| 36 | 36 | </InformationURL> |
| 37 | + <InformationURL> | |
| 38 | + <Name>ROSETTA RPC-LAP to Planetary Science Archive Interface Control Document</Name> | |
| 39 | + <URL>http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-EAICD_2_0_1_PDF_A.PDF</URL> | |
| 40 | + </InformationURL> | |
| 37 | 41 | </ResourceHeader> |
| 38 | 42 | <AccessInformation> |
| 39 | 43 | <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID> |
| ... | ... |