The performance of the Envisat orbit maintenance manoeuvres was as follows: (Mid-)Time Mode Target Size Nominal Size Calibrated Size First burn 2009/02/17-03:27:19 SFCM -0.0022 m/s -0.0021 m/s -0.0021 m/s The overall calibration result has been: -2.0% The total fuel consumption has been: 0.0075 kg