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ESA and NASA extend ties with major new cross-support agreement

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03.04.2007

On 21 March ESA and NASA signed an agreement in Washington, DC, extending the two agencies' long-standing cooperation in the areas of satellite tracking, spacecraft navigation and mission operations.

The agencies' new "Network and Operations Cross-support" agreement covers the ongoing provision to each other of services for missions where no specific Memorandum of Understanding (MOU) is in place, typically due to the short-term nature or limited scope of the support.

This type of support has been provided in the past, but was limited only to the sharing of ground tracking stations and had to be arranged for each mission separately through a Letter of Agreement (LoA), which was a long process.

Agreement covers tracking, navigation and systems sharing

The new agreement was signed in Washington, DC, by William H. Gerstenmaier, NASA Associate Administrator for Space Operations, and Gaele Winters, ESA Director for Operations and Infrastructure.

The agreement constitutes a major milestone in the long-standing cooperative relations between ESA and NASA, and covers cross-support in the following areas:

- Bi-directional Telemetry, Tracking and Command (TT&C) services

- Space Navigation, including services such as determining spacecraft trajectories and Very Long Baseline Interferometer (VLBI) services

- Mission Operations and Ground Data Systems services

"The agreement means ESA and NASA can provide each other network support and space operations services more quickly, and this is becoming very significant. The sharing of resources is a sensible and efficient way to achieve enhanced space science value in an era of tight budgets," said Dr Manfred Warhaut, Head of ESA's Mission Operations Department.

Enhanced effectiveness, reduced risk for both agencies

In particular, the bi-directional sharing of TT&C services will enhance effectiveness and reduce risk for both agencies.

This interoperability will benefit both by providing immediate back-up in case a mission's prime ground station is not available due, for example, to local weather interference or earthquakes, by ensuring additional station support during critical mission phases such as launch, orbit entry or manoeuvres, and by expanding station resources when ground tracking coverage might otherwise be missed.

Manfred Warhaut | Source: alphagalileo
Further information: www.esa.int/SPECIALS/ESOC/SEM5BCT4LZE_0.html

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