The performance of the Envisat orbit maintenance manoeuvres was as follows: (Mid-)Time Mode Target Size Nominal Size Calibrated Size First burn 2008/07/03-03:14:30 SFCM -0.0020 m/s -0.0020 m/s -0.0019 m/s Second burn 2008/07/03-04:55:06 SFCM -0.0020 m/s -0.0020 m/s -0.0019 m/s The overall calibration result has been: -6.1% The total fuel consumption has been: 0.0143 kg