The performance of the Envisat orbit maintenance manoeuvres was as follows: (Mid-)Time Mode Target Size Nominal Size Calibrated Size First burn 2009/01/28-02:26:00 SFCM 0.0085 m/s 0.0084 m/s 0.0088 m/s The overall calibration result has been: +4.8% The total fuel consumption has been: 0.0488 kg