2017년 5월 21일 일요일

SMOS

SMOS

SMOS
Position ESA
The main manufacturer Thales array near space
Official page SMOS
International mark number 2009-059A
Catalogue number 36036
State Under use
Purpose Measurement of soil water and the marine salinity
Design life Three years
Launching place プレセツク space station
Display machine ロコットロケット
The launching date and time November 2, 2009
Physical good point
Mass 658 kg
Outbreak electricity 1,065W
Main pusher Chemistry raster (1N) *4
Posture control system 3 axis posture control
Orbital element
It is targeted for go-around The earth
High (h) 758km
Orbit angle of inclination (i) 98.4 degrees
Observation equipment
MIRAS Synthetic opening microwave imaging radiometer

The earth observing satellite where European Space Agency (ESA) launched SMOS (スモス) in cooperation with French national space research center (CNES) and industrial technology development center (CDTI) in Spain in 2009. SMOS is acronym of Soil Moisture and Ocean Salinity and does water in the soil and marine salinity according to the name if targeted for observation.

Table of contents

Summary

SMOS is approved as one of the satellites constituting earth observation plan "Living Planet Programme" of the ESA in November, 2003 and is the second earth observing satellite which started observation by the plan. I map the soil water which is an important element and marine salt with respect continuously in studying a water cycle cycle and update the observation information of all earth balls at frequency of 30th about the marine salinity about the soil water on 3rd. I am expected by this data collection that I push forward the understanding of the weather model and lead to mechanism analysis of a climate change, the abnormal weather and the precision improvement of the weather cast.

The platform of SMOS is a cube of each side 1m in fabricated PROTEUS by Thales array near space company. The mission payload attached to this is Y-shaped, and it develops three pieces of arms of 8m in length that arranged a small size antenna in phase in order to receive an electric wave (L band) from the earth targeted for observation with an interference type radiometer produced by EADS CASA Espacio which is a Spanish subsidiary of EADS.

ロコットロケット stopped by from プレセツク space station on November 2, 2009 and was launched with technical proof satellite PROBA-2 and was cast into the sun synchronous orbit to go around on an altitude of 758km, circle of illumination of orbit angle of inclination 98.4 degrees. The control of SMOS is carried out in Toulouse space center of French national space research center (CNES), and Spanish European space astronomy center (ESAC) is in charge of the analysis of observation data. Three years or more are planned during the mission period.

Observation equipment

  • Synthetic opening microwave imaging radiometer MIRAS (Microwave Imaging Radiometer using Aperture Synthesis)
As for the microwave emitted by the earth surface, the strength changes by soil water and distribution of the marine salt. MIRAS captures the emission distribution of the microwave (wavelength 21cm, frequency 1.4GHz) in an interferometer and performs soil water and profiling of the marine salt. In small antenna LICEF of 16.5cm in diameter to constitute an interferometer, 15 69 in total are placed in for each 18, the satellite body to three arms, and, as for the performance by the synthetic opening, precision 4%, the ocean salt detect a density difference of 0.1 grams in 1 liter for the 200km square mean at space resolving power 50km about soil water.

Allied item

References, outside link

This article is taken from the Japanese Wikipedia SMOS

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