THEMIS Ground All Sky Imager at Gakona, Alaska. 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 (resolution 256 x 256 pixels) in a stainless steel enclosure topped with a transparent acrylic dome. 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. ATHA is part of the Norstar ASI network.
Version:2.5.0
THEMIS Ground All Sky Imager at Gakona, Alaska. 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 (resolution 256 x 256 pixels) in a stainless steel enclosure topped with a transparent acrylic dome. 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. ATHA is part of the Norstar ASI network.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Vassilis.Angelopoulos | |||
| 2. | CoInvestigator | spase://SMWG/Person/Stephen.B.Mende | |||
| 3. | CoInvestigator | spase://SMWG/Person/Eric.Donovan | |||
| 4. | MetadataContact | spase://SMWG/Person/James.M.Weygand |
Norstar web resource for ASI data and information.
Brief description of ASI instrument and links to related papers.
National Space Science Data Center: ASI description.