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Science objectives and performance of a radiometer and window design for atmospheric entry experimentsThe Radiative Heating Experiment, RHE, aboard the Aeroassist Flight Experiment, AFE, (now cancelled) was to make in-situ measurements of the stagnation region shock layer radiation during an aerobraking maneuver from geosynchronous to low earth orbit. The measurements were to provide a data base to help develop and validate aerothermodynamic computational models. Although cancelled, much work was done to develop the science requirements and to successfully meet RHE technical challenges. This paper discusses the RHE scientific objectives and expected science performance of a small sapphire window for the RHE radiometers. The spectral range required was from 170 to 900 nm. The window size was based on radiometer sensitivity requirements including capability of on-orbit solar calibration.
Document ID
Document Type
Craig, Roger A.
(MCAT Inst. Moffett Field, CA, United States)
Davy, William C.
(MCAT Inst. Moffett Field, CA, United States)
Whiting, Ellis E.
(MCAT Inst. Moffett Field, CA, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1994
Publication Information
Publication: Planetary Entry Experiments
Subject Category
Spacecraft Instrumentation
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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