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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観測回数: 35
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.
軌道パラメータ
半長軸
-17370.0 AU
離心率
1.0001
近日点
2.255 AU
遠日点
-34741.737 AU
軌道傾斜角
120.74°
公転周期
— yr
暦元
2445755.5
平均近点角
0.0°
物理パラメータ
直径
— km
アルベド
—
密度
— g/cm³
自転周期
— h
絶対等級
—
軌道品質
RMS
0.70105
状態コード
—
軌道ID
—
