Data Access
THEMIS Ground All Sky Imager Keograms for all observatories. Keograms are composed of thin images slices taken down the middle of all-sky images and graphed against time. Keograms allow for substorm analysis without the need for full sized raw images. The ASI stations each 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. 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 a sun shades deploy to protect the CCD.
Version:2.2.9
THEMIS Ground All Sky Imager Keograms for all observatories. Keograms are composed of thin images slices taken down the middle of all-sky images and graphed against time. Keograms allow for substorm analysis without the need for full sized raw images. The ASI stations each 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. 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 a sun shades deploy to protect the CCD.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Vassilis.Angelopoulos |
| 2. | CoInvestigator | spase://SMWG/Person/Stephen.B.Mende |
| 3. | CoInvestigator | spase://SMWG/Person/Eric.Donovan |
Access to Data in CDF Format via ftp from SPDF
Access to Data in CDF Format via http from SPDF
Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb
CDF data files for download, organized by date.
Univ. of Athabasca site, Lat 54.7, Long 246.7
Univ. of Athabasca site, Lat 54.7, Long 246.7
THEMIS-GBOs/UCLA site, Lat 49.8, Long 285.6
THEMIS-GBOs/UCLA site, Lat 49.8, Long 285.6
THEMIS-GBOs/UCLA site,Lat 64.8, Long 218.8
THEMIS-GBOs/UCLA site,Lat 64.8, Long 218.8
THEMIS-GBOs/UCLA site, Lat 64.7, Long 249.3
THEMIS-GBOs/UCLA site, Lat 64.7, Long 249.3
THEMIS-GBO/Carisma site, Lat 54.0, Long 259.1
THEMIS-GBO/Carisma site, Lat 54.0, Long 259.1
THEMIS-GBO/Carisma site, Lat 61.8, Long 238.8
THEMIS-GBO/Carisma site, Lat 61.8, Long 238.8
THEMIS-GBO/Carisma site, Lat 56.4, Long 265.3
THEMIS-GBO/Carisma site, Lat 56.4, Long 265.3
THEMIS-GBOs/UCLA site, Lat 53.3, Long 299.5
THEMIS-GBOs/UCLA site, Lat 53.3, Long 299.5
THEMIS-GBOs/UCLA site, Lat 68.4, Long 226.2
THEMIS-GBOs/UCLA site, Lat 68.4, Long 226.2
THEMIS-GBOs/UCLA site, lat 49.4, long 277.7
THEMIS-GBOs/UCLA site, lat 49.4, long 277.7
THEMIS-GBOs/UCLA site, Lat 67.0, Long 199.6
THEMIS-GBOs/UCLA site, Lat 67.0, Long 199.6
THEMIS-GBOs/UCLA site, Lat 58.3, Long 291.8
THEMIS-GBOs/UCLA site, Lat 58.3, Long 291.8
THEMIS-GBOs/UCLA site, Lat 63.0, Long 204.4
THEMIS-GBOs/UCLA site, Lat 63.0, Long 204.4
DTU Greenland/Denmark station, Lat 61.16 , Long 314.56
DTU Greenland/Denmark station, Lat 61.16 , Long 314.56
THEMIS-GBO/Carisma site, Lat 50.2, Long 263.9
THEMIS-GBO/Carisma site, Lat 50.2, Long 263.9
Prince George, BC, Lat 53.8, Long 237.2
Prince George, BC, Lat 53.8, Long 237.2
THEMIS-GBO/Carisma site, Lat 62.8, Long 267.9
THEMIS-GBO/Carisma site, Lat 62.8, Long 267.9
THEMIS-GBO/Carisma site, Lat 56.5, Long 280.8
THEMIS-GBO/Carisma site, Lat 56.5, Long 280.8
THEMIS-GBOs/UCLA site, Lat 63.6, Long 249.1
THEMIS-GBOs/UCLA site, Lat 63.6, Long 249.1
THEMIS-GBO/Carisma site, Lat 69.5, Long 266.4
THEMIS-GBO/Carisma site, Lat 69.5, Long 266.4
THEMIS-GBOs/UCLA site, Lat 61.0, Long 224.8
THEMIS-GBOs/UCLA site, Lat 61.0, Long 224.8
Geological Survey of Canada station, Lat 62.5, Long 245.7
Geological Survey of Canada station, Lat 62.5, Long 245.7
thg_ask_stations
Image column number; x-dimension, image width.
Image row number; y-dimension, image height.
Athabasca GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Chibougamau GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Yellowknife GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Fort Smith GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Fort Smith GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Fort Yukon (University of Alaska): Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Gakona (University of Alaska): Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Goose Bay GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Gillam GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Inuvik GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Kapuskasing GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Kiana GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
McGrath GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Kuujjuaq GBO: Keogram images of 256 pixels
Time UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Prince George GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Pinawa GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Rankin Inlet GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Sanikiluaq GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
The Pas GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
White Horse GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Ekati GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00
Snap Lake GBO: Keogram images of 256 pixels
Time, UTC, in seconds since 01-Jan-1970 00:00:00
End time, UTC, in seconds since 01-Jan-1970 00:00:00