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Solar Physics

, Volume 230, Issue 1–2, pp 111–127 | Cite as

The Total Irradiance Monitor (TIM): Instrument Calibration

  • Greg KoppEmail author
  • Karl Heuerman
  • George Lawrence
Article

Abstract

The calibrations of the SORCE Total Irradiance Monitor (TIM) are detailed and compared against the designed uncertainty budget. Several primary calibrations were accomplished in the laboratory before launch, including the aperture area, applied radiometer power, and radiometer absorption efficiency. Other parameters are calibrated or tracked on orbit, including the electronic servo system gain, the radiometer sensitivity to background thermal emission, and the degradation of radiometer efficiency. The as-designed uncertainty budget is refined with knowledge from the on-orbit performance.

Keywords

Thermal Emission Absorption Efficiency Servo System Uncertainty Budget Instrument Calibration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Laboratory for Atmospheric and Space PhysicsUniversity of ColoradoBoulderU.S.A.

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