The performance of the Envisat orbit maintenance manoeuvres was as follows: (Mid-)Time Mode Target Size Nominal Size Calibrated Size First burn 2009/03/13-03:05:56 SFCM -0.00057 m/s -0.00063 m/s -0.00047 m/s The overall calibration result has been: -25.7% The total fuel consumption has been: 0.0022 kg