2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/Collection/THEMIS/Ground/ASI/full_PT3S NASA Collection THEMIS Ground-based All Sky Imager; Full Resolution Images THEMIS-Ground ASF https://doi.org/10.48322/5jv5-vc55 2026-02-02T13:11:13Z 2023-10-23T00:00:00.00Z Created by JMW. 2023-10-27T00:00:00.00Z Added DOI. JMW. 2026-02-02T13:11:13Z Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB THEMIS Ground All Sky Imager at 256 x 256 pixel full resolution images of auroral oval. 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 a sun shades deploy to protect the CCD. We acknowledge NASA contract NAS5-02099 and V. Angelopoulos for use of data from the THEMIS Mission. Specifically: S. Mende and E. Donovan for use of the ASI data, the Canadian Space Agency (CSA) for logistical support in fielding and data retrieval from the GBO stations, and the Canada Foundation for Innovation. Angelopoulos, V., Mende, S. B., Donovan, E., Frey, H. U., and Spanswick, E. L. 2023-01-01T00:00:00 University of California, Berkeley spase://SMWG/Person/Vassilis.Angelopoulos PrincipalInvestigator spase://SMWG/Person/Stephen.B.Mende CoInvestigator spase://SMWG/Person/Eric.Donovan CoInvestigator spase://SMWG/Person/Harald.U.Frey CoInvestigator spase://SMWG/Person/Emma.Louise.Spanswick CoInvestigator THEMIS Summary Plots http://themis.ssl.berkeley.edu/gbo/display.py?view_type=summary Summary plots containing ASI thumbnail images; useful for determining when ASI data exists. spase://SMWG/Repository/UCB/THEMIS Online Open THEMIS Web Data http://themis.ssl.berkeley.edu/data/themis/thg/l1/asi/ CDF None Athabasca THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Athabasca (54.71 deg GLat, 246.69 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Athabasca/ASI/full_PT3S 2005-01-01T00:00:00 Chibougamau THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Chibougamau (49.81 deg GLat, 285.58 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Chibougamau/ASI/full_PT3S 2006-01-03T07:00:00 Ekati THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Ekati (64.72 deg GLat, 250.67 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Ekati/ASI/full_PT3S 2005-01-15T06:00:00 2007-04-29T08:00:00 Fort Simpson THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Fort Simpson (61.76 deg GLat, 238.77 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Fort.Simpson/ASI/full_PT3S 2006-11-11T04:00:00 Fort Smith THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Fort Smith (60.03 deg GLat, 248.07 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Fort.Smith/ASI/full_PT3S 2006-01-01T00:00:00 Fort Yukon THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Fort Yukon (66.56 deg GLat, 214.79 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Fort.Yukon/ASI/full_PT3S 2005-11-28T02:00:00 2019-03-08T09:00:00 Gakona THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Gakona (62.39 deg GLat, 214.87 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Gakona/ASI/full_PT3S 2006-09-12T05:00:00 Gillam THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Gillam (56.35 deg GLat, 265.34 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Gillam/ASI/full_PT3S 2006-06-01T04:00:00 Goose Bay THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Goose Bay (53.32 deg GLat, 299.54 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Goose.Bay/ASI/full_PT3S 2006-10-03T07:00:00 Inuvik THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Inuvik (68.41 deg GLat, 226.23 deg GLong): 256 x 256 pixel full resolution images of auroral oval spase://NASA/NumericalData/THEMIS/Ground/Inuvik/ASI/full_PT3S 2006-01-01T02:00:00 Kapuskasing THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Kapuskasing (49.39 deg GLat, 277.68 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Kapuskasing/ASI/full_PT3S 2006-05-17T02:00:00 Kiana THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Kiana (66.97 deg GLat, 199.56 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Kiana/ASI/full_PT3S 2006-09-08T07:00:00 Kuujjuaq THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Kuujjuaq (58.10 deg GLat, 291.60 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Kuujjuaq/ASI/full_PT3S 2007-10-31T23:00:00 McGrath THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at McGrath (62.95 deg GLat, 204.40 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/McGrath/ASI/full_PT3S 2005-08-31T04:00:00 Narsarsuaq THEMIS Ground-based All Sky Imager; Full Resolution Images THEMIS Ground All Sky Imager at Narsarsuaq (61.16 deg GLat, 314.56 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Narsarsuaq/ASI/full_PT3S 2008-10-22T00:00:00 Pinawa THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Pinawa (50.20 deg GLat, 263.96 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Pinawa/ASI/full_PT3S 2006-06-01T04:00:00 Prince George THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Prince George (53.82 deg GLat, 237.17 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Prince.George/ASI/full_PT3S 2005-01-01T01:00:00 2007-08-31T09:00:00 Rankin Inlet THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Rankin Inlet (62.82 deg GLat, 267.89 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Rankin.Inlet/ASI/full_PT3S 2005-09-14T02:00:00 Sanikiluaq THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Sanikiluaq (56.54 deg GLat, 280.77 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Sanikiluaq/ASI/full_PT3S 2006-10-31T01:00:00 Snap Lake THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Snap Lake (63.58 deg GLat, 249.13 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Snap.Lake/ASI/full_PT3S 2008-10-22T04:00:00 2013-10-24T11:00:00 Taloyoak THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at Taloyoak (69.54 deg GLat, 266.45 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Taloyoak/ASI/full_PT3S 2009-01-15T23:00:00 The Pas THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at The Pas (53.99 deg GLat, 259.06 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/The.Pas/ASI/full_PT3S 2005-11-28T00:00:00 Whitehorse THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS Ground All Sky Imager at White Horse (61.01 deg GLat, 224.78 deg GLong): 256 x 256 pixel full resolution images of auroral oval. spase://NASA/NumericalData/THEMIS/Ground/Whitehorse/ASI/full_PT3S 2006-01-01T01:00:00 Yellowknife THEMIS Ground-based All Sky Imager; Full Resolution Images. 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. spase://NASA/NumericalData/THEMIS/Ground/Yellowknife/ASI/full_PT3S 2008-03-01T02:00:00 2008-10-22T04:00:00