diff --git a/NumericalData/AMDA/Rosetta/LAP/ros-lap-asw.xml b/NumericalData/AMDA/Rosetta/LAP/ros-lap-asw.xml index 835f1ef..46869c9 100644 --- a/NumericalData/AMDA/Rosetta/LAP/ros-lap-asw.xml +++ b/NumericalData/AMDA/Rosetta/LAP/ros-lap-asw.xml @@ -193,6 +193,9 @@ contamination effects, these estimates should be directly proportional to the EU quality flag ros_lap_asw_f + Quality flag constructed as the sum of multiple terms, +depending on what quality related effects are present. Each digit is either in +the range 0 (best) to 7 (worst), or 9 (not used) diff --git a/NumericalData/AMDA/Rosetta/LAP/ros-lap-ned.xml b/NumericalData/AMDA/Rosetta/LAP/ros-lap-ned.xml index d9a54f7..fe42eba 100644 --- a/NumericalData/AMDA/Rosetta/LAP/ros-lap-ned.xml +++ b/NumericalData/AMDA/Rosetta/LAP/ros-lap-ned.xml @@ -93,6 +93,9 @@ does not prevent plasma electrons from reaching the Langmuir probes. quality flag ros_lap_ned_f + Quality flag constructed as the sum of multiple terms, +depending on what quality related effects are present. Each digit is either in +the range 0 (best) to 7 (worst), or 9 (not used) diff --git a/NumericalData/AMDA/Rosetta/LAP/ros-lap-nel.xml b/NumericalData/AMDA/Rosetta/LAP/ros-lap-nel.xml index 6256c07..5f9cda2 100644 --- a/NumericalData/AMDA/Rosetta/LAP/ros-lap-nel.xml +++ b/NumericalData/AMDA/Rosetta/LAP/ros-lap-nel.xml @@ -84,6 +84,9 @@ measurements or floating potential measurements on one probe. A value of quality flag ros_lap_nel_f + Quality flag constructed as the sum of multiple terms, +depending on what quality related effects are present. Each digit is either in +the range 0 (best) to 7 (worst), or 9 (not used) diff --git a/NumericalData/AMDA/Rosetta/LAP/ros-lap-pho.xml b/NumericalData/AMDA/Rosetta/LAP/ros-lap-pho.xml new file mode 100644 index 0000000..f2333d6 --- /dev/null +++ b/NumericalData/AMDA/Rosetta/LAP/ros-lap-pho.xml @@ -0,0 +1,115 @@ + + + 2.2.6 + + spase://CDPP/NumericalData/AMDA/Rosetta/LAP/ros-lap-pho + + photosaturation current (PHO) + Photosaturation current derived collectively from multiple sweeps + 2016-10-15T14:08:29Z + There are two estimates of the photoemission current from LAP1 sweeps of a sunlit probe. +I_PH0 in PHO files is a statistical estimate from several sweeps (over 60 minute +windows), while I_PHO in the ASW files is an estimate from a single sweep with larger +uncertainties but higher time resolution (usually 160 s). As LAP1 has shown no significant +contamination effects, these estimates should be directly proportional to the EUV flux at the +Rosetta position in the 20-130 nm band [Johansson et al, 2017]. For LAP2, the same +techniques have revealed a lower photoemission at the start of the cometary phase of the +emission, and a sharp drop in photoemission after significant thruster firings (e.g. dayside +excursion, 60% decrease) with sporadic recoveries and relapses. We therefore only use LAP1 +based values. + +While there is no other source of photoemission measurements than LAP, its value is +controlled by solar EUV radiation which is known from e.g. TIMED and SDO at Earth and +MAVEN at Mars. Photoemission values by both methods were presented by Johansson et al. +[2017] and compared to Earth and Mars data. The two methods were found to give consistent +results, also in agreement with a third independent method immune to instrument offsets. +However, around perihelion all methods returned about 50% less photoemission than +expected from the Earth and Mars EUV fluxes. This may be a real effect, for example because +of attenuation of solar EUV radiation by large numbers of small dust grains at large distance +from the nucleus. It is also possible that this somehow relates to probe surface contamination, +though no other such effects have been noted on LAP1 + + spase://CDPP/Person/Anders.Eriksson + PrincipalInvestigator + + + spase://CDPP/Person/Erik.Johansson + DataProducer + + + RPC LAP User Guide + http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-UG.PDF + + + ROSETTA RPC-LAP to Planetary Science Archive Interface Control Document + http://amda.irap.omp.eu/help/parameters/RO-IRFU-LAP-EAICD_2_0_1_PDF_A.PDF + + + + spase://SMWG/Repository/CDPP/AMDA + Online + Restricted + + http://amda.cdpp.eu + + NetCDF + + PSA + RO-C-RPCLAP-5-xxx-DERIV2-V1.0 + spase://CDPP/Instrument/AMDA/Rosetta/LAP + ThermalPlasma + + + 2014-03-24T08:12:59Z + 2016-09-30T10:31:16Z + + PT60S + + + i_pho + ros_lap_pho + Photosaturation current derived collectively from multiple sweeps + + a + + TimeSeries + + + + + quality value + ros_lap_pho_q + Quality value in the range 0 (worst) to 1 (best). +Corresponds to goodness of fit or how well the model fits the data. + + + + TimeSeries + + + + + data source + ros_lap_usc_s + + + + TimeSeries + + + + + quality flag + ros_lap_pho_f + Quality flag constructed as the sum of multiple terms, +depending on what quality related effects are present. Each digit is either in +the range 0 (best) to 7 (worst), or 9 (not used) + + + + TimeSeries + + + + + diff --git a/NumericalData/AMDA/Rosetta/LAP/ros-lap-usc.xml b/NumericalData/AMDA/Rosetta/LAP/ros-lap-usc.xml index a7c8662..bdedcb8 100644 --- a/NumericalData/AMDA/Rosetta/LAP/ros-lap-usc.xml +++ b/NumericalData/AMDA/Rosetta/LAP/ros-lap-usc.xml @@ -95,6 +95,9 @@ Corresponds to goodness of fit or how well the model fits the data. quality flag ros_lap_usc_f + Quality flag constructed as the sum of multiple terms, +depending on what quality related effects are present. Each digit is either in +the range 0 (best) to 7 (worst), or 9 (not used) -- libgit2 0.21.2