Vacuum-ultraviolet instrumentation for solar irradiance and thermospheric airglow
- National Center for Atmospheric Research, Boulder, CO (United States). High Altitude Observatory
- Univ. of Colorado, Boulder, CO (United States). Lab. for Atmospheric and Space Physics
A NASA sounding rocket experiment was developed to study the solar extreme-ultraviolet (EUV) spectral irradiance and its effect on the upper atmosphere. Both the solar flux and the terrestrial molecular nitrogen via the Lyman-Birge-Hopfield bands in the far-ultraviolet (FUV) region were measured remotely from a sounding rocket on October 27, 1992. The rocket experiments also includes EUV instruments from Boston University, but only the National Center for Atmospheric Research's (NCAR)/University of Colorado's (CU) four solar instruments and one airglow instrument are discussed. The primary solar EUV instrument is a 0.25-m Rowland circle EUV spectrograph that has flown on three rockets since 1988 measuring the solar spectral irradiance from 30 to 110 nm with 0.2-nm resolution. Another solar irradiance instrument is an array of six silicon soft x-ray (XUV) photodiodes, each having different metallic filters coated directly on the photodiodes. The other solar irradiance instrument is a silicon avalanche photodiode coupled with pulse height analyzer electronics. The fourth solar instrument is a XUV imager that images the sun at 17.5 nm with a spatial resolution of 20 arc sec. The airglow spectrograph measures the terrestrial FUV airglow emissions along the horizon from 125 to 160 nm with 0.2-nm spectral resolution.
- OSTI ID:
- 5094645
- Journal Information:
- Optical Engineering; (United States), Vol. 33:2; ISSN 0091-3286
- Country of Publication:
- United States
- Language:
- English
Similar Records
The TIMED solar EUV experiment
Identification of thermospheric dayglow emissions for the MUSTANG experiment. Master's thesis
Related Subjects
GENERAL PHYSICS
AIRGLOW
REMOTE SENSING
SOLAR FLUX
ENERGY TRANSFER
EXTREME ULTRAVIOLET RADIATION
IONOSPHERE
SOFT X RADIATION
SOLAR CYCLE
SOLAR RADIATION
THERMOSPHERE
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
PLANETARY IONOSPHERES
RADIATIONS
STELLAR RADIATION
ULTRAVIOLET RADIATION
X RADIATION
661320* - Auroral
Ionospheric
& Magnetospheric Phenomena- (1992-)