Van Allen Probe A ECT HOPE Spin Resolved Level 2 Science Data

https://doi.org/10.48322/34q8-8q26

2022-08-18 12:34:56.789

This data set contains electron fluxes and proton fluxes measured by the Helium Oxygen Proton Electron (HOPE), which is one of three instruments on the Energetic Particle, Composition and Thermal Plasma Suite (ECT). As a mass spectrometer instrument, HOPE uses an electrostatic top-hat analyzer and time-gated coincidence detectors to measure electrons, protons, and helium and oxygen ions with energies from less than or equal to 20 eV or spacecraft potential (whichever is greater) to greater than or equal to 45 keV while rejecting penetrating backgrounds. Spectral measurements for both ions and electrons are acquired over 1 eV to 50 keV in 36 log-spaced steps at an energy resolution ΔEFWHM/E ~15%. The dominant ion species (H+, He+, and O+) of the magnetosphere are identified using foil-based time-of-flight mass (TOF) spectrometry with channel electron multiplier (CEM) detectors. Angular measurements are derived using five polar pixels in a plane perpendicular to the spacecraft spin axis, and up to 16 azimuthal bins are acquired for each polar pixel over time as the spacecraft spins. Electrons and protons are measured in alternate spin cadence of 5 per minute.

NASA Space Physics Data Facility (SPDF) CDAWeb.

spase://VSPO/NumericalData/RBSP/A/ECT/HOPE/L2/Sectors/Release03/PT24S

spase://VSPO/NumericalData/RBSP/A/ECT/HOPE/SCI-L2/PT24S

spase://ViRBO/NumericalData/RBSP/A/ECT/HOPE-SCI-L2/PT24S

spase://ViRBO/NumericalData/RBSP/A/ECT/PRE/HOPE-SCI-L2/PT24S

spase://VSPO/NumericalData/RBSP/A/ECT/HOPE/L2/Sectors/Release04/PT24S

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Please acknowledge the CDAWeb team at GSFC/SPDF.

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CSV

PT24S

Epoch

Epoch

Default time

Epoch, UT

ms

1.0e3>s

Satellite position (GEO)

Position

[Time-series] Position of the satellite in geographic coordinates

Origin = Earths center of mass. X = Intersection of Greenwich meridian and geographic equator. Z = Geographic North Pole. Y = completes a right-handed Cartesian triad

km

1.0e-3>m

Position_Quality

Position_Quality

Position Quality flag

0 denotes highest quality.

none

Magnetic field strength

B_Calc

Calculated magnetic field strength

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

1.0e9>T

Equatorial magnetic field strength

B_Eq

Calculated magnetic field strength at magnetic equator

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

1.0e9>T

McIlwains L parameter

L

Calculated McIlwains L parameter (Earths radii)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

1.5696e-7>m

Roederers L* parameter

L_star

Calculated Roederers L* parameter (Earths radii)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

1.5696e-7>m

Adiabatic invariant (bounce)

I

Adiabatic invariant (bounce)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

none

none

Magnetic Local Time

MLT

Calculated Magnetic Local Time (hours)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

h

2.778e-4>s

Satellite position (GEO)

Position_TT

[Labels on plots] Position of the satellite in geographic coordinates

Origin = Earths center of mass. X = Intersection of Greenwich meridian and geographic equator. Z = Geographic North Pole. Y = completes a right-handed Cartesian triad

km

1.0e-3>m

Magnetic field strength

B_Calc_TT

Calculated magnetic field strength

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

1.0e9>T

Equatorial magnetic field strength

B_Eq_TT

Calculated magnetic field strength at magnetic equator

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

1.0e9>T

McIlwains L parameter

L_TT

Calculated McIlwains L parameter (Earths radii)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

1.5696e-7>m

Roederers L* parameter

L_star_TT

Calculated Roederers L* parameter (Earths radii)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

1.5696e-7>m

Adiabatic invariant (bounce)

I_TT

Adiabatic invariant (bounce)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

none

none

Magnetic Local Time

MLT_TT

Calculated Magnetic Local Time (hours)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

h

2.778e-4>s

Pitch angle

Alpha

Pitch angle

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

degrees

57.296>rad

Equat. Pitch angle

Alpha_Eq

Equatorial pitch angle

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

degrees

57.296>rad

Detector No.

HOPE_DETECTOR

Detector No.

Sector No.

HOPE_SECTOR

Sector No.

Sector_Collapse for Counters data

Sector_Collapse_Cntr

Collapse method used for a given pixel.

For a given pixel, the number of spin angle sectors which are collapsed on board to fit the telemetry allocation. The collapse method sums all values together, then compresses according to the following algorithm: if (sum < 16384) {return sum} else {return ((sum-16384)/64) + 16384}

Acquisition_Period

Acquisition_Period

Acquisition_Period

The length of a single ESA step acquisition

ms

Plan

Plan

Science data acquisition Plan

Which science plan was used for the acquisition. The seclected science plan determines the ESA Sweep, TOF DAC, data product selection, and data collapse method used for an acquisition. As a general rule, plans 0-7 and 15 are reserved for HOPE nominal operations, and 8-14 are reserved for burst support operations.

Plan_Step

Plan_Step

Plan_Step

Which step within a science plan was used. Each science plan consists of up to 16 steps, each of which can specify different HVPS and telemetry configuration settings.

ESA_Volt

ESA_Volt

ESA_Volt

Absolute values of the ESA voltage that was used for each energy step.

ESA_Volt_Ion

ESA_Volt_Ion

ESA_Volt_Ion

ESA voltage in ion mode (negative voltages)

Epoch_Ion

Epoch_Ion

Default time

Epoch at times of ion mode measurements

ms

Epoch_Ele

Epoch_Ele

Default time

Epoch at times of electron mode measurements

ms

ESA_Volt_Ion

ESA_Volt_Ele

ESA_Volt_Ion

ESA voltage in electron mode (positive voltages)

ESA_Polarity

ESA_Polarity

Polarity of the ESA voltage.

Polarity of the ESA voltage. 0 = positive (electron mode), 1 = negative (ion mode)

ESA_Sweep

ESA_Sweep

ESA_Sweep

Which of the 16 ESA Sweep ptables was used for the acquisition.

Cntr_Eclpse

Cntr_Eclpse

Counter Energy Collapse

Whether or not energy collapsing was enabled for Counters (starts, stops, H+, He+, O+, e-, etc.) data. 0 = collapsed, 1 = not collapsed.

FPDU

FPDU

[CreateCDF ONLY] FPDU: Differential directional proton flux ~15-50,000 eV (5 Detectors, 16 Sectors, 72 Energies)

Proton flux as a function of detector pixel (5), spin angle sector (16), and energy (72). Note that data have been expanded to the highest possible resolution (16 spin angles, 72 energies), even though in most cases the transmitted data are collapsed (36 energies, 4-8-16-8-4 spin angles) to fit the telemetry allocation.

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D1_BY_ENERGY

FPDU: Detector 1/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D2_BY_ENERGY

Detector 2/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D3_BY_ENERGY

Detector 3/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D4_BY_ENERGY

Detector 4/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D5_BY_ENERGY

Detector 5/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D1_BY_ANGLE

FPDU: Detector 1/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D2_BY_ANGLE

Detector 2/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D3_BY_ANGLE

Detector 3/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D4_BY_ANGLE

Detector 4/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D5_BY_ANGLE

Detector 5/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D1_PLASMAGRAM

[FPDU_D1_PLASMAGRAM] HOPE differential proton flux

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D2_PLASMAGRAM

[FPDU_D2_PLASMAGRAM] HOPE differential proton flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D3_PLASMAGRAM

[FPDU_D3_PLASMAGRAM] HOPE differential proton flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D4_PLASMAGRAM

[FPDU_D4_PLASMAGRAM] HOPE differential proton flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FPDU

FPDU_D5_PLASMAGRAM

[FPDU_D5_PLASMAGRAM] HOPE differential proton flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

HOPE_ENERGY

HOPE_ENERGY

HOPE_ENERGY

eV

HOPE_ENERGY_DELTA_plus

HOPE_ENERGY_DELTA_plus

HOPE_ENERGY_DELTA_plus

HOPE_ENERGY_DELTA_minus

HOPE_ENERGY_DELTA_minus

HOPE_ENERGY_DELTA_minus

FHEDU

FHEDU

[CreateCDF ONLY] FHeDU: Differential directional helium flux ~15-50,000 eV (5 Detectors, 16 Sectors, 72 Energies)

Helium flux as a function of detector pixel (5), spin angle sector (16), and energy (72). Note that data have been expanded to the highest possible resolution (16 spin angles, 72 energies), even though in most cases the transmitted data are collapsed (36 energies, 3-8-16-8-4 spin angles) to fit the telemetry allocation.

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D1_BY_ENERGY

FHeDU: Detector 1/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D2_BY_ENERGY

Detector 2/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D3_BY_ENERGY

Detector 3/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D4_BY_ENERGY

Detector 4/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D5_BY_ENERGY

Detector 5/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D1_BY_ANGLE

FHeDU: Detector 1/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D2_BY_ANGLE

Detector 2/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D3_BY_ANGLE

Detector 3/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D4_BY_ANGLE

Detector 4/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D5_BY_ANGLE

Detector 5/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D1_PLASMAGRAM

[FHEDU_D1_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D2_PLASMAGRAM

[FHEDU_D2_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D3_PLASMAGRAM

[FHEDU_D3_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D4_PLASMAGRAM

[FHEDU_D4_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FHEDU

FHEDU_D5_PLASMAGRAM

[FHEDU_D5_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

Energy

HOPE_ENERGY_Ion

HOPE_ENERGY_Ion

eV

FODU

FODU

[CreateCDF ONLY] FODU: Differential directional oxygen flux ~1-50,000 eV (5 Detectors, 16 Sectors, 72 Energies)

Oxygen flux as a function of detector pixel (5), spin angle sector (16), and energy (72). Note that data have been expanded to the highest possible resolution (16 spin angles, 72 energies), even though in most cases the transmitted data are collapsed (36 energies, 4-8-16-8-4 spin angles) to fit the telemetry allocation.

s-1 cm-2 ster-1 keV-1

FODU

FODU_D1_BY_ENERGY

FODU: Detector 1/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FODU

FODU_D2_BY_ENERGY

Detector 2/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FODU

FODU_D3_BY_ENERGY

Detector 3/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FODU

FODU_D4_BY_ENERGY

Detector 4/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FODU

FODU_D5_BY_ENERGY

Detector 5/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FODU

FODU_D1_BY_ANGLE

FODU: Detector 1/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FODU

FODU_D2_BY_ANGLE

Detector 2/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FODU

FODU_D3_BY_ANGLE

Detector 3/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FODU

FODU_D4_BY_ANGLE

Detector 4/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FODU

FODU_D5_BY_ANGLE

Detector 5/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FODU

FODU_D1_PLASMAGRAM

[FODU_D1_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

Electron flux as a function of

s-1 cm-2 ster-1 keV-1

FODU

FODU_D2_PLASMAGRAM

[FODU_D2_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FODU

FODU_D3_PLASMAGRAM

[FODU_D3_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FODU

FODU_D4_PLASMAGRAM

[FODU_D4_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FODU

FODU_D5_PLASMAGRAM

[FODU_D5_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FEDU

FEDU

[CreateCDF ONLY] FEDU: Differential directional electron flux ~15-50,000 eV (5 Detectors, 16 Sectors, 72 Energies)

Electron flux as a function of detector pixel (5), spin angle sector (16), and energy (72). Note that data have been expanded to the highest possible resolution (16 spin angles, 72 energies), even though in most cases the transmitted data are collapsed (36 energies, 4-8-16-8-4 spin angles) to fit the telemetry allocation.

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D1_BY_ENERGY

FEDU: Detector 1/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D2_BY_ENERGY

Detector 2/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D3_BY_ENERGY

Detector 3/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D4_BY_ENERGY

Detector 4/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D5_BY_ENERGY

Detector 5/Plot: all Energies for the selected sector numbers 1,3,5,7,8,10,12,14,16

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D1_BY_ANGLE

FEDU: Detector 1/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D2_BY_ANGLE

Detector 2/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D3_BY_ANGLE

Detector 3/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D4_BY_ANGLE

Detector 4/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D5_BY_ANGLE

Detector 5/Plot: all Sectors for the selected energy channels 1,9,17,25,33,40,48,56,64,72

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D1_PLASMAGRAM

[FEDU_D1_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D2_PLASMAGRAM

[FEDU_D2_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D3_PLASMAGRAM

[FEDU_D3_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D4_PLASMAGRAM

[FEDU_D4_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

FEDU

FEDU_D5_PLASMAGRAM

[FEDU_D5_PLASMAGRAM] HOPE differential electron flux all energies, sector 1, selected detectors

s-1 cm-2 ster-1 keV-1

Energy

HOPE_ENERGY_Ele

HOPE_ENERGY_Ele

eV