The CHAMP geopotential mission
The CHAMP geopotential mission
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CHAMP 地理潜力使命
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
H. Lühr
中科院分区：
文献类型：
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作者：
C. Reigber;P. Schwintzer;H. Lühr
CHAMP是德国的一个小型卫星任务，旨在从低空轨道同时精确观测重力和磁场。由于采用了专用轨道设计，近极轨道前所未有的低空，通过标量和矢量磁强计对磁场矢量进行连续无干扰观测，以及连续的GPS星对卫星跟踪能力以及对非引力轨道扰动的直接机载测量，可以预期磁场的全局建模将得到显着改进，并且重力场的宽到中尺度结构也将得到数量级的改进。此外，由于设计的任务持续时间为 5 年，因此可以以更高的信噪比和更高的空间分辨率来检测两个领域的时间变化，就像现在一样。 CHAMP于2000年7月15日成功推出。
CHAMP is a German small satellite mission aiming at the simultaneous precise observation of both the gravity and magnetic field from a low altitude orbit. Thanks to the dedicated orbit design, an unprecedented low altitude in a near polar orbit, its continuous undisturbed observation of the magnetic field vector through scalar and vector magnetometers and its continuous GPS satellite-to-satellite tracking capability together with a direct on-board measurement of the non-gravitational orbit perturbations, a dramatic improvement in the global modeling of the magnetic field and also an order of magnitude improvement for the broad to mesoscale structures of the gravity field can be expected. In addition, due to the designed 5 years mission duration, temporal changes in both fields will be detectable with a higher signal/noise ratio and at increased spatial resolution as it is possible now. CHAMP was successfully launched on 15 July 2000.