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The Near-Earth Orbit Surveillance Satellite

机译:近地轨道监视卫星

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摘要

Defence Research and Development Canada (DRDC) and the Canadian Space Agency (CSA) are jointly working to place a microsatellite, equipped with a small optical telescope, on orbit to detect and track both "deep-space" earth orbiting objects (orbital altitudes > 5000 km), and inner-earth orbit (IEO) asteroids. The satellite will be named the Near Earth Orbit Surveillance Satellite (NEOSSat), is baselined for launch in 4th Q 2008, and will be equipped with a 15cm diameter telescope capable of detecting 19.5th magnitude stars over a 100s integration. Other important design requirements of this telescope include the ability to observe to within 45 degrees of the sun (to better detect IEO asteroids) and the ability to observe to within 20 degrees of the anti-sun direction and remain power-positive. The mission is expected to cost $11M CDN (launch costs included, but operating and ground-station costs excluded). The scientific aims of the NEOSSat mission will be described and the results of the NEOSSat Phase-A will be presented. Test observations have been conducted using the MOST ("Microvariability and Oscillations of STars") microsatellite, the inspiration for NEOSSat, and the results of these observations will be shown here; these tests validate both the general concept of using a microsatellite for these types of observations, as well as the expected performance.
机译:加拿大国防研究与发展局(DRDC)和加拿大航天局(CSA)正在共同努力,将装有小型光学望远镜的微卫星放置在轨道上,以检测和跟踪“深空”地球轨道物体(轨道高度> 5000公里)和内地球轨道(IEO)小行星。该卫星将被命名为近地轨道监视卫星(NEOSSat),定于2008年第四季度发射,并配备直径15厘米的望远镜,能够在100秒的积分时间内探测到19.5级的恒星。该望远镜的其他重要设计要求包括在太阳45度以内进行观测的能力(以更好地检测IEO小行星)以及在反太阳方向20度以内进行观测并保持正电的能力。该任务预计耗资1100万加元(包括启动费用,但不包括运营和地面站费用)。将描述NEOSSat任务的科学目的,并将介绍NEOSSat A期的结果。已经使用MOST(“星云的微变率和振荡”)微卫星进行了测试观察,这是NEOSSat的灵感,这些观察的结果将在此处显示;这些测试验证了使用微卫星进行这些类型的观测的一般概念以及预期的性能。

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