2.1.0 spase://VMO/NumericalData/THEMIS/Ground/UCLA-GBO/GBAY/ASI/full_PT3S THEMIS Ground-based All Sky Imager; Full Resolution Images. THEMIS-Ground ASF 2010-03-29T19:26:35Z THEMIS Ground All Sky Imager at Goose Bay: 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, and the CSA for logistical support in fielding and data retrieval from the GBO stations. spase://SMWG/Person/Vassilis.Angelopoulos PrincipalInvestigator spase://SMWG/Person/Stephen.B.Mende CoInvestigator spase://SMWG/Person/Eric.Donovan 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/NASA/GSFC/SPDF/CDAWeb Online Open THEMIS Web Data http://themis.ssl.berkeley.edu/data/themis/thg/l1/asi/gbay/ CDF None spase://SMWG/Instrument/THEMIS/Ground/UCLA-GBO/GBAY/ASI ImageIntensity 2007-01-02T00:00:00 -P1Y PT3S ASF data is retrieved by physically swapping hard drives at GBO site therefore the data is usually not available for at least 3-5 months. thg_asf_gbay thg_asf_gbay Full images of 256x256 pixels; saturation counts for each pixel. counts 256 256 Scalar Photon Intensity thg_asf_gbay_column thg_asf_gbay_column Image column number; x-dimension, image width. 256 Other thg_asf_gbay_row thg_asf_gbay_row Image row number; y-dimension, image height. 256 Other thg_asf_gbay_time thg_asf_gbay_time Start of integration time, UTC, in seconds since 01-Jan-1970 00:00:00 Not including leap seconds s 0.0 5.0E9 NaN Temporal thg_asf_gbay_tend thg_asf_gbay_tend Integration end time, UTC, in seconds since 01-Jan-1970 00:00:00 Not including leap seconds s 0.0 5.0E9 NaN Temporal