Translator Disclaimer
16 October 2002 Off-axis response measurement of the sounding of the atmosphere using broadband emission radiometry (SABER) telescope
Author Affiliations +
The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument is a 10-channel earth limb-viewing sensor that measures atmospheric emissions in the spectral range of 1.27 μm to 16.9 μm. SABER is part of NASA's Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) mission, which was successfully launched in December 2001. Uncommon among limb-viewing sensors, SABER employs an on-axis telescope design with reimaging optics to allow for an intermediate field stop and a Lyot stop. Additional stray light protection is achieved by an innovative inner Lyot stop, which is placed conjugate to the secondary obscuration and support structure. Presented in this paper is the off-axis response of SABER as measured in the Terrestrial Black Hole off-axis scatter facility at the Space Dynamics Laboratory. The measurement was made at visible wavelengths; thus, the response is only representative of SABER's short wavelength channels. The measurement validated the stray light design and complemented the APART software model, which predicts that mirror scatter is the dominant stray light mechanism at short wavelengths. In addition, estimates of the mirror bi-directional reflectance distribution function (BRDF) were made. The off-axis response measurement indicates that SABER is an exceptional stray light suppression telescope.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John L. Stauder, Lynne R. Bates, James S. Dyer, Roy W. Esplin, and Duane O. Miles "Off-axis response measurement of the sounding of the atmosphere using broadband emission radiometry (SABER) telescope", Proc. SPIE 4767, Current Developments in Lens Design and Optical Engineering III, (16 October 2002);


Stray light design and analysis of the SNAP Telescope
Proceedings of SPIE (September 14 2007)
Stray light design and analysis of the Sounding of the...
Proceedings of SPIE (November 18 1998)
Vane Structure Design Trade-Off And Performance Analysis
Proceedings of SPIE (April 05 1989)
Stray-light analysis of the SABER telescope
Proceedings of SPIE (September 29 1995)
Stray light analysis of CRISTA
Proceedings of SPIE (December 01 1990)

Back to Top