IRAS
The Infrared Astronomical Satellite (IRAS) was the first space telescope to perform a survey of the entire night sky at infrared wavelengths. Launched on 25 January 1983, its mission lasted ten months. The telescope was a joint project of the United States (NASA), the Netherlands (NIVR), and the United Kingdom (SERC). Over 250,000 infrared sources were observed at 12, 25, 60, and 100 micrometer wavelengths.
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The Infrared Astronomical Satellite (IRAS) was the first space telescope to perform a survey of the entire night sky at infrared wavelengths. Launched on 25 January 1983, its mission lasted ten months. The telescope was a joint project of the United States (NASA), the Netherlands (NIVR), and the United Kingdom (SERC). Over 250,000 infrared sources were observed at 12, 25, 60, and 100 micrometer wavelengths.
궤도 파라미터
반장축
-17370.0 AU
이심률
1.0001
근일점
2.255 AU
원일점
-34741.737 AU
궤도 경사
120.74°
공전 주기
— yr
历元
2445755.5
평균 근점각
0.0°
물리적 파라미터
직경
— km
반사율
—
밀도
— g/cm³
자전 주기
— h
절대 등급
—
궤도 품질
RMS
0.70105
상태 코드
—
궤도 ID
—
