Data · dataset · 2025
Yellowknife THEMIS Ground-based All Sky Imager; Full Resolution Images.
Listed in NASA Data Portal
THEMIS Ground All Sky Imager at Yellowknife (62.52 deg GLat, 245.69 deg GLong): 256 x 256 pixel full resolution images of auroral oval.
Description
The ASI stations monitor a 170 degree field of view imaging the auroral oval at kilometer resolution. The ASI is comprised of a fisheye lens and CCD in a stainless steel enclosure topped with a transparent acrylic dome.
The CCD has a resolution of 256 x 256 pixels. Exposure control ranges from 5 s to 1 ms although the typical data rate is one image every 3 seconds. Silicone heaters keep the instrument within the nominal temperature range.
Read the rest (1 more)
During daylight hours a sun shades deploy to protect the CCD.
Links
Get the data
- Resource themis.ssl.berkeley.edu/data/themis/thg/l1/asi/yknf ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/THEMIS/Ground/Yellowknife/ASI/full_PT3S ↗
download · from data nasa gov
- Resource themis.ssl.berkeley.edu/gbo/display.py?view_type=summary ↗
download · from data nasa gov
- Resource helio.data.nasa.gov/dataset/THEMIS_Ground_Yellowknife_ASI_full_PT3S ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/yellowknife-themis-ground-based-all-sky-imager-full-re… ↗
landing page · from data nasa gov
- DOI doi.org/10.48322/9kf9-0617 ↗
DOI / persistent id · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=93e834ca-05e8-4dae-ac19-a3caea90d… ↗
metadata API · from data nasa gov
Topics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 93e834ca-05e8-4dae-ac19-a3caea90db53 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[modality].local:modality:image | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:imaging | 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 |