Browse Publications Technical Papers 2007-01-3082

AGILE Satellite Thermal Control System Design: Thermal Model Uncertainty Reduction 2007-01-3082

The satellite AGILE (Astro-rivelatore Gamma a Immagini LEggero, “Light Gamma Ray Imaging Detector”) is a promising instrument for near-earth space research of the Italian Space(ASI) during the years 2007-2009: its scientific instrumentation has optimal imaging capabilities in both the gamma-ray energy range (30 MeV - 30 GeV) and hard X-ray range (15 - 45 keV). It will study the phenomena occurring in the high energy spectrum, such as: Active Galactic Nuclei, Gamma Ray Bursts, Gamma-ray Galactic Diffuse Emission, and more. The satellite was designed and built in years 2004-2006; this paper describes the design of the thermal control system of the satellite, with a survey of the flight prediction. As an example of uncertainty reduction, MLI performance characterization by test was done in an early phase of the AIV phase (i.e. well before the system level test), to meet stringent payload requirements in terms of temperature gradients and temperature stability. AGILE will fly in an equatorial orbit: dimensioning cases are presented in the paper. The satellite TCS has been designed modularly, with a bus/payload approach. AGILE Operational modes, design solutions and practical implementation (MLI, heaters/thermostats and passive radiators) are presented. Finally it is shown how the model uncertainty has evolved since the early design stage, to CDR design and to after tests-model correlation.


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


Members save up to 17% 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:

Modeling and Correlation of an Actively-Controlled Single Phase Mechanically-Pumped Fluid Loop


View Details


Thermal Assessment of Swift BAT Instrument Thermal Control System in Flight


View Details


The Variable Effective Surface Radiator, Novel Heat Switch Technology Based on the Oscillating Heat Pipe Principle


View Details