THEMIS GBO All Sky Imager at McGrath, AK. ASI Thumbnails Data.
THEMIS Ground All Sky Imager at McGrath (62.95 deg GLat, 204.40 deg GLong): 32 x 32 pixel thumbnails for full ASI images. 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. During daylight hours sun shades deploy to protect the CCD.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Vassilis Angelopoulos",
"@type": "vcard:Contact",
"hasEmail": "mailto:vassilis@igpp.ucla.edu"
}
|
| description | THEMIS Ground All Sky Imager at McGrath (62.95 deg GLat, 204.40 deg GLong): 32 x 32 pixel thumbnails for full ASI images. 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. During daylight hours sun shades deploy to protect the CCD. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Data Information (HTML)",
"format": "HTML",
"mediaType": "text/html",
"downloadURL": "https://doi.org/10.48322/ep3w-4p06"
}
]
|
| identifier | https://doi.org/10.48322/ep3w-4p06 |
| keyword |
[
"imageintensity"
]
|
| landingPage | https://doi.org/10.48322/ep3w-4p06 |
| modified | 2026-02-10 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "THEMIS Data Repository at Berkeley",
"@type": "org:Organization"
}
|
| temporal | 2005-08-31/2005-08-31 |
| theme |
[
"Heliophysics"
]
|
| title | THEMIS GBO All Sky Imager at McGrath, AK. ASI Thumbnails Data. |
