1994-06-01

SCIAMACHY Optical Assembly Thermal Design 941373

SCIAMACHY is a German-Dutch Earth observation instrument which is to fly aboard the Envisat-1 spacecraft It is an 8 channel spectrometer designed to analyse sun light which is scattered on higher layers of the atmosphere. Two of the channels perform measurements in the Infra-Red. For these channels a low and stable temperature level of the instrument is required (< -20 °C) to minimise the impact of IR background radiation on the measurements. Additionally, the system requirement on spectral stability requires the variation in thermal gradient to be very small. This paper presents the flow down from system to thermal requirements and gives a rationale for the Thermal Control Sub-system (TCS) design concept which was established to meet these severe requirements. Added to this are some of the analyses results which support the TCS design. The presented TCS design reflects the PDR status.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Temperature Sensors in Spacecraft Applications

951746

View Details

TECHNICAL PAPER

Methods of Controlling the Loop Heat Pipe Operating Temperature

2008-01-1998

View Details

TECHNICAL PAPER

Design and Optical Performance Evaluation of Smart Radiation Device with Multi-layer Coating

2008-01-2152

View Details

X