Table · dataset · 2025
THEMIS GBO All Sky Imager at McGrath, AK. ASI Thumbnails Data.
Listed in NASA Data Portal
THEMIS Ground All Sky Imager at McGrath (62.95 deg GLat, 204.40 deg GLong): 32 x 32 pixel thumbnails for full ASI images.
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 sun shades deploy to protect the CCD.
Links
Get the data
- Resource themis.ssl.berkeley.edu/data/themis/thg/l1/asi/mcgr ↗
download · from data nasa gov
- Resource hpde.io/NASA/NumericalData/THEMIS/Ground/McGrath/ASI/thumb_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_McGrath_ASI_thumb_PT3S ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/themis-gbo-all-sky-imager-at-mcgrath-ak-asi-thumbnails… ↗
landing page · from data nasa gov
- DOI doi.org/10.48322/ep3w-4p06 ↗
DOI / persistent id · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=b0052b5b-1569-4867-a502-56816b9ae… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | b0052b5b-1569-4867-a502-56816b9ae03a | 9 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%) |
| 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 |