Table · dataset · 2026
Ulysses GAS Interstellar Helium Maps
Listed in NASA Data Portal
This Ulysses GAS experiment data set consists of pixel map data and image files for sky maps generated from GAS measurements in the mode primarily sensitive to neutral helium atoms from inflow of interstellar gas into the heliosphere.
Description
The accumulated counts and Ecliptic (spacecraft-centered) angle coordinates for each sky map pixel are given in the ascii files *.TXT. The positions of the Sun and the planets vary with time and with the position of the spacecraft along its trajectory, while the positions of stars remain fixed.
The full images are provided in GIF (*.GIF files) and postscript (*.PS files) format, the GIF files being easily viewed on-line (see below) with an Internet web browser. The actual positions of Sun, Earth, and Jupiter are indicated by yellow, green and white dots, respectively. The area around the Sun is excluded from observation to avoid damaging intensities from direct sunlight.
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The files USER_GUIDE.TXT, FORMAT.TXT, and REFERENCE.TXT, respectively, give an overall description of the various datatypes, the record format for the DATA datatype, and a list of GAS-related publications. The users guide defines the nomenclature of the file names. Further details about the data and the experiment may be found in Witte et al., Astron.
Astrophys. Suppl. Ser., 92, No. 2, 333-348, 1992 (NSSDC TRF # B40459-000A).
Data analysis methods for interstellar helium are described in Banaszkiewicz et al., Astron. Astrophys. Suppl.
Ser., 120, 587-602, 1996 (B45706-000A).
Links
Get the data
- Resource spdf.gsfc.nasa.gov/pub/data/ulysses/gas/is_helium/data ↗
download · from data nasa gov
- Resource nssdc.gsfc.nasa.gov/nmc/dataset/display.action?id=SPHE-00413 ↗
download · from data nasa gov
- Resource helio.data.nasa.gov/dataset/Ulysses_GAS_Interstellar-Helium_PT24H ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/Ulysses/GAS/Interstellar-Helium/PT24H ↗
download · from data nasa gov
- Resource spdf.gsfc.nasa.gov/pub/data/ulysses/gas/is_helium/data ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/ulysses-gas-interstellar-helium-maps-b0362 ↗
landing page · from data nasa gov
- DOI doi.org/10.48322/m0b0-fg03 ↗
DOI / persistent id · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=0ccbb67b-f0cb-46d5-92ea-e227bb7b9… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Image 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 0ccbb67b-f0cb-46d5-92ea-e227bb7b9d9d | 11 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 | |
| concepts[modality].local:modality:image | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| 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 |