TIMED solar EUV experiment

Thomas N. Woods, Scott Bailey, Frank Eparvier, George Lawrence, Judith Lean, Bill McClintock, Raymond Roble, Gary J. Rottman, Stanley C. Solomon, W. Kent Tobiska, Greg Ucker, O. R. White

Research output: Contribution to journalConference articlepeer-review

74 Scopus citations

Abstract

The Solar EUV Experiment (SEE) selected for the NASA Thermosphere, Ionosphere, and Mesosphere Energetics and Dynamics (TIMED) mission will measure the solar vacuum ultraviolet (VUV) spectral irradiance from 0.1 to 200 nm. To cover this wide spectral range two different types of instruments are used: a grating spectrograph for spectra above 25 nm and a set of silicon soft x-ray (XUV) photodiodes with thin film filters for below 30 nm. Redundant channels of the spectrograph and XUV photodiodes provide in-flight calibration checks on the time scale of a week, and annual rocket underflight measurements provide absolute calibration checks traceable to radiometric standards. Both types of instruments have been developed and flight proven as part of a NASA solar EUV irradiance rocket experiment.

Original languageEnglish
Pages (from-to)180-191
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3442
DOIs
StatePublished - 1998
Externally publishedYes
EventMissions to the sun II - San Diego, CA, United States
Duration: Jul 22 1998Jul 23 1998

Keywords

  • Solar ultraviolet irradiance instrument

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