Table · dataset · 2026
ISIS 2 TOPIST Produced Electron Density Profiles
Listed in NASA Data Portal
This data set from the ISIS 2 (International Satellites for Ionospheric Studies) Swept-Frequency Sounder consists of electron density profiles for the ionosphere above the F2 maximum (topside ionosphere).
Description
The data set was generated from the averaged ionogram binary data (SPIO-00318) recorded by the Topside Sounder. The data are obtained with the TOPIST program, which analyzes the data, automatically scales the ionogram traces and resonances, and inverts the traces into an electron density profile.
The same program is available for use to hand-scale the data if desired. Output data items include spacecraft position, electron density profile, assessment of quality, resonance and cut-off frequencies, and both the O-trace and X-trace.
Links
Get the data
- Resource helio.data.nasa.gov/dataset/ISIS2_SFS_TOPIST ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/ISIS2/SFS/TOPIST ↗
download · from data nasa gov
- Resource spdf.gsfc.nasa.gov/pub/data/isis/topside_sounder ↗
download · from data nasa gov
- Resource spdf.gsfc.nasa.gov/pub/data/isis/topside_sounder ↗
download · from data nasa gov
- Resource cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=I2_NEPROF_TOPIST&index=sp_phys ↗
download · from data nasa gov
- Resource cdaweb.gsfc.nasa.gov/hapi ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/isis-2-topist-produced-electron-density-profiles-471d1 ↗
landing page · from data nasa gov
- DOI doi.org/10.48322/cm9h-qt09 ↗
DOI / persistent id · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=fc87f277-c1b2-4627-9022-62683f361… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | fc87f277-c1b2-4627-9022-62683f361672 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| 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 |