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ASTM E 490 : 2022

Current
Current

The latest, up-to-date edition.

Standard Solar Constant and Zero Air Mass Solar Spectral Irradiance Tables
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

04-27-2022

1.1These tables define the solar constant and zero air mass solar spectral irradiance for use in thermal analysis, thermal balance testing, and other tests of spacecraft and spacecraft components and materials. Typical applications include the calculation of solar absorptance from spectral reflectance data, the specification of solar UV exposure of materials during simulated space radiation testing, and the rating of photovoltaic cells deployed in space.

1.2These tables are based upon data from experimental measurements made mostly from spacecraft, with minor contributions from observations made on high-altitude aircraft, or from the earth's surface.

1.3These tables are representative of periods when the sun’s activity is average or moderate. The sun’s activity tends to modify its spectrum almost exclusively in the UV and extreme UV spectral regions (below 0.1 µm).

1.4Units—The values stated in SI units are to be regarded as standard. Other units of measurement are included for information purposes only.

1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee
E 21
DocumentType
Standard
Pages
22
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 927 : 2019 Standard Classification for Solar Simulators for Electrical Performance Testing of Photovoltaic Devices
ASTM G 173 : 2003 : R2020 Standard Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37° Tilted Surface
ASTM G 177 : 2003 : R2020 Standard Tables for Reference Solar Ultraviolet Spectral Distributions: Hemispherical on 37° Tilted Surface
ASTM E 948 : 2016 : R2020 Standard Test Method for Electrical Performance of Photovoltaic Cells Using Reference Cells Under Simulated Sunlight
ASTM E 973 : 2016 : R2020 Standard Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic Reference Cell
ASTM E 1125 : 2016 : R2020 Standard Test Method for Calibration of Primary Non-Concentrator Terrestrial Photovoltaic Reference Cells Using a Tabular Spectrum
ASTM E 1362 : 2015 : R2019 Standard Test Methods for Calibration of Non-Concentrator Photovoltaic Non-Primary Reference Cells
ASTM E 903 : 2020 Standard Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres
ASTM E 512 : 1994 : R2020 Standard Practice for Combined, Simulated Space Environment Testing of Thermal Control Materials with Electromagnetic and Particulate Radiation
ASTM G 197 : 2014 : R2021 Standard Table for Reference Solar Spectral Distributions: Direct and Diffuse on 20° Tilted and Vertical Surfaces
ASTM E 772 : 2015 : R2021 Standard Terminology of Solar Energy Conversion
ASTM G 214 : 2016 Standard Test Method for Integration of Digital Spectral Data for Weathering and Durability Applications

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