Solar EUV irradiance derived from a sounding rocket experiment on November 10, 1988

Journal Article · Tue May 01 00:00:00 EDT 1990 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JA095iA05p06227· OSTI ID:5030922

Woods, T N; Rottman, G J ^[1]

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1. Univ. of Colorado, Boulder (United States)

The solar EUV irradiance from 30 to 100 nm was obtained from a sounding rocket experiment launched from the White Sands Missile Range, New Mexico, on November 10, 1988. This measurement will be used to cross calibrate the Airglow-Solar Spectrometer Instrument on the San Marco D/L satellite. The solar EUV spectrograph had pre- and post-flight photometric calibrations with an average uncertainty of 6% at the Synchrotron Ultraviolet Radiation Facility (SURF) at the National Institute of Standards and Technology. The observed solar EUV irradiance is about 20% less than the solar EUV flux from a proxy model based on the daily 10.7-cm solar flux (F{sub 10.7}) and its 81-day mean () and the AE-E solar EUV data taken in the 1970's. This measurement was obtained during the ascending phase of the solar cycle 22, while the AE-E data were obtained during the ascending phase of solar cycle 21. Measurements of the solar Lyman {alpha} irradiance at 121.6 nm were also obtained with an nitric oxide ionization cell. The derived Lyman {alpha} flux is 3.30 {plus minus} 0.5 ({times} 10{sup 11} photons s{sup {minus}1} cm{sup {minus}2}) as compared to 3.35 {plus minus} 0.3 derived from the Solar Mesospheric Explorer solar data on November 10, 1988.

• OSTI ID: 5030922
• Journal Information: Journal of Geophysical Research; (United States), Vol. 95:A5; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLAR RADIATION
MONITORING
CALIBRATION
DATA
EARTH ATMOSPHERE
LYMAN LINES
RADIATION FLUX
ROCKETS
SOLAR CYCLE
SPECTROMETERS
ULTRAVIOLET SPECTRA
VARIATIONS
INFORMATION
MEASURING INSTRUMENTS
RADIATIONS
SPECTRA
STELLAR RADIATION
640104* - Astrophysics & Cosmology- Solar Phenomena