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Operational Orbit Determination

The following services are currently available:

* Manoeuvre and Mass History

Provides information about time and size (calibrated) of the Envisat manoeuvres, and the mass changes due to the manoeuvres

* Orbit Prediction Errors

Provides monthly RMS values of the daily along-track errors after 1, 3, and 6 days of Envisat orbit predictions

* Orbit Comparison

Provides a comparison of the operational orbit with the precise orbit in radial, along- and cross-track direction

* State Vector Retrieval

This facility allows to interactively extract Envisat state vectors and orbital elements from our Operational Orbit Files.