Search Help
Daily Solar Irradiance from the Solar Mesospheric Explorer (SME) Ultraviolet Spectrometer
Entry ID: 81-100A-05A

Abstract: The solar spectrometer onboard the Solar Mesosphere Explorer (SME)
measures ultraviolet radiation in the spectral range of 115.5 to 302.5 nm.
Daily averages of solar irradiance, adjusted to a solar distance of 1 AU,
with a spectral resolution of 1 nm is available on one tape. Improved
solar Lyman-alpha flux at 120, 121, and 122 nm are included in the tape
as a correction to the instrument's wavelength calibration error.

The absolute flux is normalized to a rocket experiment of May 17, 1982 and
is accurate to +/- 15%. The relative accuracy should not be considered
better than +/- 2% per year, and extraction of long-term solar variability
from this data set is not recommended by the investigators.
Data Set Citation
Dataset Originator/Creator: NASA/GSFC/NSSDC
Dataset Title: Daily Solar Irradiance from the Solar Mesospheric Explorer (SME) Ultraviolet Spectrometer
Version: Not provided
Online Resource:
Temporal Coverage
Start Date: 1982-01-01
Data Center
National Space Science Data Center Coordinated Archive, Space Science Data Operation Office, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:

Data Center Personnel
Email: nssdc-request at
Contact Address:
National Space Science Data Center
NSSDC/Code 633.4
NASA/Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Email: Charles.Barth at
View entire list
Mount, G.H., and G.J. Rottman (1982-01-01T00:00:00.000Z), The Solar Absolute Spectral Irradiance 1150-3173 Angstrom, J. Geophy. Res., 88, 5403-5410, 1983

Rottman, G.J., C.A. Barth, R.J. Thomas, G.H. Mount, G.M. Lawrence, D.W. Rusch, R.W. Sanders, G.E. Thomas, and J. London (1982-01-01T00:00:00.000Z), Solar spectral irradiance, 120 to 190 nm, October 13, 1981 - January 3, 1982, Geophys. Res. Lett., 587-590, 1982
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 1970-01-01
Last DIF Revision Date: 2018-08-29