Absolute, Extreme-Ultraviolet Solar Spectral Irradiance Monitor (AESSIM)
Abstract
Several AESSIM mission concepts which involve spectrometers on rocket underflights and those on the Voyager spacecraft have been considered. We have studied a low-pressure version of the EUV radiance standard of Hollandt, Huber & Kuhne (Appl. Opt. 33, 68, 1994) and concluded that a substantial redesign of it would be required if a suitable one is to be developed for in-orbit calibration of a solar spectral irradiance monitor. We have reviewed the use, suitability, and the availability of thin film filters for in-orbit EUV calibration. In our opinion, the availability of space-qualified filters has not been verified. We have evaluated and chosen a design of a 4-spectrograph, flat-field package that provides 0.1 to 0.2 nm resolution in the range 5-175 nm with a total weight including detectors (without electronics) of 1.6 Kg. Solar, Extreme-ultraviolet, Radiometric calibration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1994
- Accession Number
- ADA278709
Entities
People
- Peter L. Smith
- W. H. Parkinson
Organizations
- Harvard College Observatory