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ICON The Far Ultra Violet Imaging Spectrograph Dayside Images
The FUV instrument takes 2D images of the Earth’s horizon in the Far ultraviolet. The imager is pointing approximately 90 degrees to the spacecraft motion, similar to looking out of the side window of a car as it drives down the road. Onboard electronics read the image 8 times per second and perform Time Delay Integration (TDI) to remove the motion-blur from the images. A turret is used to steer the field of view of the instrument left to right to ensure it always looks along the magnetic meridian (towards the magnetic pole). This describes the data product for ICON FUV Daytime O/N2 (DP 2.4). The ratio of oxygen to nitrogen in the thermosphere is obtained from the two channels of ICON FUV instrument data in, through an inversion process described in https://doi.org/10.1007/s11214-018-0477-6. The L2 FUV Daytime files are produced from the L1 FUV files.
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ICON The Far Ultra Violet Imaging Spectrograph Day Limb Images
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The FUV instrument takes 2D images of the Earth’s horizon in the Far ultraviolet. The imager is pointing approximately 90 degrees to the spacecraft motion, similar to looking out of the side window of a car as it drives down the road. Onboard electronics read the CCD detectors 8 times per second and collect the data into radiance profiles every 12 seconds. The calibrated level 1 radiances and Level 1 ancillary spacecraft data are combined in a limb retrieval to produce the level 2.4 O/N2 limb product.
International Ultraviolet Explorer
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The International Ultraviolet Explorer (IUE) performed spectrophotometry at high (0.1-0.3 Å) and low (6-7 Å) resolution between 1150 Å and 3200 Å. The data cover a dynamic range of approximately 17 astronomical magnitudes: -2 to 10 for high dispersion; -2 and 14.9 for low dispersion. Over 104,000 ultraviolet spectra were obtained with IUE between January 26, 1978, and September 30, 1996.
TIMED Global Ultraviolet Imager (GUVI) Airglow Flux 14-day Movies, at Wavelength 1216 Å in Mercator Projection
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GUVI measures FUV Airglow in five Spectral Bands: the atomic HI Lyman-alpha Band, 121.6 nm, two atomic Oxygen OI Bands, 130.4 nm and 135.6 nm, and the molecular Nitrogen Lyman-Birge-Hopfield Short, LBHS, 141 to 152.8 nm, and Lyman-Birge-Hopfield Long, LBHL, 167.2 to 181.2 nm, Bands. The Cross-Track Scanning Spectrograph images a Ground Swath of 3000 km Width providing nearly Contiguous Global Coverage with 15 Orbits per Day. This L1CDisk, Level 1C Disk, Version 3, File provides the calibrated, geolocated, and rectified Intensities for the first H Ly-alpha, 1216 Å Wavelength Band. This is a Movie with mapped Images of the Log Intensities by Orbit by using a Transverse Mercator Projection.
TIMED Global Ultraviolet Imager (GUVI) Airglow Flux 14-day Movies, at Wavelength 1356 Å in Mercator Projection
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GUVI measures FUV Airglow in five Spectral Bands: the atomic HI Lyman-alpha Band, 121.6 nm, two atomic Oxygen OI Bands, 130.4 nm and 135.6 nm, and the molecular Nitrogen Lyman-Birge-Hopfield Short, LBHS, 141 to 152.8 nm, and Lyman-Birge-Hopfield Long, LBHL, 167.2 to 181.2 nm, Bands. The Cross-Track Scanning Spectrograph images a Ground Swath of 3000 km Width providing nearly Contiguous Global Coverage with 15 Orbits per Day. This L1CDisk, Level 1C Disk, Version 3, File provides the calibrated, geolocated, and rectified Intensities for the third OI, 1356 Å, Wavelength Band. This is a Movie with mapped Images of the Log Intensities by Orbit by using a Transverse Mercator Projection.
TIMED Global Ultraviolet Imager (GUVI) Airglow Flux 14-day Movies, at Wavelength 1304 Å in Mercator Projection
공공데이터포털
GUVI measures FUV Airglow in five Spectral Bands: the atomic HI Lyman-alpha Band, 121.6 nm, two atomic Oxygen OI Bands, 130.4 nm and 135.6 nm, and the molecular Nitrogen Lyman-Birge-Hopfield Short, LBHS, 141 to 152.8 nm, and Lyman-Birge-Hopfield Long, LBHL, 167.2 to 181.2 nm, Bands. The Cross-Track Scanning Spectrograph images a Ground Swath of 3000 km Width providing nearly Contiguous Global Coverage with 15 Orbits per Day. This L1CDisk, Level 1C Disk, Version 3, File provides the calibrated, geolocated, and rectified Intensities for the second OI, 1304 Å, Wavelength Band. This is a Movie with mapped Images of the Log Intensities by Orbit by using a Transverse Mercator Projection.
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