Table · dataset · 2026
Alouette-2 Topside Sounder Ionogram Data
Listed in NASA Data Portal
These ionograms were digitized from the original Alouette 2 7-track analog telemetry tapes using the facilities of the former Data Evaluation Laboratory at the NASA/GSFC.
Description
This data restoration project is headed by Dr. R.F. Benson (NASA/GSFC).
Ionograms were digitized at the rate of 40,000 16-bit samples/sec. This sample rate is higher than the Nyquist frequency of 30 kHz. The sample frequency of 40 kHz provides a measurement every 25 microseconds corresponding to an apparent range (c*t/2) interval of 3.75 km.
Read the rest (1 more)
The ionograms consist of swept-frequency operation (there is no fixed-frequency operation as in ISIS-1 and ISIS-2). The time resolution between ionograms is typically 31 seconds.
Links
Get the data
- Resource spdf.gsfc.nasa.gov/pub/data/alouette/topside_sounder/ionogram_cdaweb/alouette2 ↗
download · from data nasa gov
- Resource cdaweb.gsfc.nasa.gov/sp_phys ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/AverageIonogram/Fairbanks/PT3… ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/AverageIonogram/FalklandIslan… ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/AverageIonogram/Lima/PT31S ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/AverageIonogram/Quito/PT31S ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/AverageIonogram/Santiago/PT31S ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/AverageIonogram/Winkfield/PT3… ↗
download · from data nasa gov
- Resource spdf.gsfc.nasa.gov/isis/isis-status.html ↗
download · from data nasa gov
- Resource nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1965-098A-01 ↗
download · from data nasa gov
- Resource helio.data.nasa.gov/dataset/Alouette2_SFS_PT31S ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Alouette2/SFS/PT31S ↗
download · from data nasa gov
- Resource spdf.gsfc.nasa.gov/pub/data/alouette/topside_sounder/ionogram_cdaweb/alouette2 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/alouette-2-topside-sounder-ionogram-data-d132e ↗
landing page · from data nasa gov
- DOI doi.org/10.48322/fxfx-v946 ↗
DOI / persistent id · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=4ad79315-c1bc-4f5c-80ef-31d459c00… ↗
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 | 4ad79315-c1bc-4f5c-80ef-31d459c003c1 | 7 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 |