The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) satellites are equipped with high-precision three-axis accelerometers to measure all non-gravitational accelerations acting on the satellites. Precise knowledge of these perturbations is a major prerequisite for successful Gravity Field Recovery (GFR). Unfortunately, after only one month in orbit the accelerometer on one of the two satellites produced decreasingly accurate measurements. Due to this, the GRACE-D accelerometer data has to be replaced by artificial data for the use in the GFR process. In most existing approaches, which are called transplants, this data is constructed from GRACE-C measurements.

中文翻译：

---

通过高精度环境建模恢复 GRACE Follow-On 加速度计数据

重力恢复和气候实验后续卫星（GRACE-FO）配备了高精度三轴加速度计，用于测量作用在卫星上的所有非重力加速度。准确了解这些扰动是成功进行重力场恢复 (GFR) 的主要先决条件。不幸的是，在轨道运行仅一个月后，两颗卫星其中一颗上的加速度计产生的测量精度逐渐下降。因此，GRACE-D 加速度计数据必须替换为人工数据才能用于 GFR 过程。在大多数称为移植的现有方法中，这些数据是根据 GRACE-C 测量构建的。