2.3.1
spase://CNES/NumericalData/CDPP-AMDA/Geotail/LEP/gtl-lep-edb
editor B: ions
2015-10-16T17:02:08Z
12-second Editor-A low-energy particle data from the Geotail spacecraft.
Editor-A data are only acquired with the real-time operation in Usuda Deep Space Center (UDSC),Japan, while the Editor-B data are 24-hours continuouslyrecorded in the onboard tape recorders and are dumpedover the NASA/JPL Deep Space Network (DSN) stations.
The ion energy analyzer (LEP-EAi) has two energy scan mode: RAM-A (60 eV to 40 keV) and RAM-B (5 keV to 40 keV). RAM-B is selected to protect the very sensitive detector from intense low energy fluxes that are usually seen in the solar wind and magnetosheath. The energy scan mode is automatically selected onboard depending on incoming ion fluxes. At present, only the ion moments in the RAM-A mode are listed for the LEP-EAi data.
The ion moment data of the solar wind analyzer (LEP-SW) should be used only qualitatively. The LEP-SW ion moments are listed when the energy scan mode of LEP-EAi is RAM-B.
In any publications, the use of the Geotail data should be acknowledged, for example, as "Geotail magnetic field data were provided by Y. Saito, JAXA in Japan."
spase://SMWG/Person/Yoshifumi.Saito
PrincipalInvestigator
spase://SMWG/Person/Donald.H.Fairfield
Scientist
The Geotail Low Energy Particle Experiment (LEP)
http://www.darts.isas.ac.jp/stp/geotail/jgg_lep.pdf
Reprint of Mukai, T., S. Machida, Y. Saito, M. Hirahara, T. Terasawa, N. Kaya, T. Obara, M. Ejiri, and A. Nishida, The low energy particle (LEP) experiment onboard the Geotail satellite, J. Geomag. Geoelectr., 46, 669-692, 1994.
spase://SMWG/Repository/CNES/CDPP-AMDA
Online
Open
AMDA at CDPP
http://amda.cdpp.eu
NetCDF
None
Data provider Y. Saito at JAXA, Japan and CDAWeb.
DARTS
spase://CNES/Instrument/CDPP-AMDA/Geotail/LEP
ThermalPlasma
1993-10-05T00:00:34Z
2019-02-28T23:59:17Z
PT12S
Heliosphere.NearEarth
Earth.Magnetosheath
Earth.Magnetosphere
Earth.Magnetosphere.Magnetotail
Please use the Editor-A LEP dataset prior to the Editor-B LEP dataset since plasma moments in the Editor-A data are more reliable. (Plasma moments inthe Editor-B are calculated onboard.)
The ion moment data of the solar wind analyzer (LEP-SW) should be used only qualitatively.
density
gtl_lepb_dens
Ion density
phys.density;phys.ion
Qualitative use only if Energy Scan Code = 2, i.e. if the energy scan mode is RAM-B/SW.
cm^-3
1e-6>m-3
TimeSeries
0.0
-1.0E31
Proton
AlphaParticle
Ion
Moment
NumberDensity
60
38150
eV
v_gse
gtl_lepb_v
Ion velocity in GSE coordinates
phys.velocity;phys.ion
Qualitative use only if Energy Scan Code = 2, i.e. if the energy scan mode is RAM-B/SW.
km/s
1e3>m/s
Cartesian
GSE
TimeSeries
3
vx
Component.I
1
gtl_lepb_v(0)
-2000
2000
-1.0E31
vy
Component.J
2
gtl_lepb_v(1)
-2000
2000
-1.0E31
vz
Component.K
3
gtl_lepb_v(2)
-2000
2000
-1.0E31
Proton
AlphaParticle
Ion
Moment
FlowVelocity
60
38150
eV
v_gsm
gtl_lepb_v_gsm
Ion velocity in GSM coordinates
phys.velocity;phys.ion
Qualitative use only if Energy Scan Code = 2, i.e. if the energy scan mode is RAM-B/SW.
km/s
1e3>m/s
Cartesian
GSM
TimeSeries
3
vx
Component.I
1
gtl_lepb_v_gsm(0)
-2000
2000
-1.0E31
vy
Component.J
2
gtl_lepb_v_gsm(1)
-2000
2000
-1.0E31
vz
Component.K
3
gtl_lepb_v_gsm(2)
-2000
2000
-1.0E31
Proton
AlphaParticle
Ion
Moment
FlowVelocity
60
38150
eV
t_sc
gtl_lepb_t
Ion temperature in satellite coordinates
phys.temperature;phys.ion
Qualitative use only if Energy Scan Code = 2, i.e. if the energy scan mode is RAM-B/SW.
eV
Cartesian
SC
TimeSeries
2
Tyy
1
gtl_lepb_t(0)
-10
10000
-1.0E31
Tzz
2
gtl_lepb_t(1)
-10
10000
-1.0E31
Proton
AlphaParticle
Ion
Moment
Parallel
Perpendicular
Temperature
60
38150
eV