Table · dataset · 2026
Hawkeye Spacecraft Low Energy Proton-Electron Differential Energy Analyzer (LEPEDEA), ion moments
Listed in NASA Data Portal
This dataset is of the Hawkeye Spacecraft LEPEDEA ion moments made over the entire mission.
Description
Ion moments, treated as 100% protons, are derived from LEPEDEA ramp measurements, one ramp energy sweep takes 1.44 s, time between ion sweeps is 11.52s, spin period is about 11s, so about 21 sweeps are required for uniform coverage in the spin plane. The FOV is 8 degrees (spin-plane) x 30 degrees (out of spin pane), so the FOV covered over a spin is about pi of 4*pi steradians.
The time step between moment computations varies between 70 and 110s and the time interval for a moment computation was typically 21x2 sweeps or 484s,so moment computation intervals overlapped. LEPEDEA is not a solar wind instrument. No correction for the external photo-electron sheath has been made, the impact is estimated to be small.
Links
Get the data
- Resource cdaweb.gsfc.nasa.gov/pub/data/hawkeye/lepedea ↗
download · from data nasa gov
- Resource cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HK_LEPEDEA_ION-MOMS&index=sp_phys ↗
download · from data nasa gov
- Resource doi.org/10.2514/2.3879 ↗
download · from data nasa gov
- Resource helio.data.nasa.gov/dataset/Hawkeye_LEPEDEA_Level2_moments_PT80S ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Hawkeye/LEPEDEA/Level2/moments/PT80S ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/hawkeye-spacecraft-low-energy-proton-electron-differen… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=61327d20-8a8c-4ed8-818f-6af3d4619… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Space sciences 74%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 61327d20-8a8c-4ed8-818f-6af3d4619882 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:5109 | enrichment · data nasa gov | taxonomy-embedding@1.0.0 | title+keywords+description (74%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |