The performance of the Envisat orbit maintenance manoeuvres was as follows: (Mid-)Time Mode Target Size Nominal Size Calibrated Size First burn 2008/09/10-02:41:13 SFCM 0.0077 m/s 0.0077 m/s 0.0078 m/s The overall calibration result has been: 2.1% The total fuel consumption has been: 0.0450 kg