A method for validating the calibration parameters of the six accelerometers on board the Gravity field and steady-state Ocean Circulation Explorer (GOCE) from star tracker observations that was originally tested by an end-to-end simulation, has been updated and applied to real data from GOCE. It is shown that the method provides estimates of scale factors for all three axes of the six GOCE accelerometers that are consistent at a level significantly better than 0.01 compared to the a priori calibrated value of 1. In addition, relative accelerometer biases and drift terms were estimated consistent with values obtained by precise orbit determination, where the first GOCE accelerometer served as reference. The calibration results clearly reveal the different behavior of the sensitive and less-sensitive accelerometer axes.

中文翻译：

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使用 GOCE 星跟踪器验证其加速度计的校准

一种用于验证重力场和稳态海洋环流探测器 (GOCE) 上六个加速度计校准参数的方法，该方法最初是通过端到端模拟测试的恒星跟踪器观测，现已更新并应用于实际来自 GOCE 的数据。结果表明，该方法为六个 GOCE 加速度计的所有三个轴提供了比例因子的估计值，与先验校准值 1 相比，这些值的一致性水平显着优于 0.01。此外，相对加速度计偏差和漂移项是估计与通过精确轨道确定获得的值一致，其中第一个 GOCE 加速度计作为参考。校准结果清楚地揭示了敏感和不太敏感的加速度计轴的不同行为。