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Cluster Status Report - February 2006

Cluster Status Report - February 2006

Mission StatusThe four spacecraft and instruments are operating nominally. The phasing manoeuvres were executed in November 2005. The spacecraft multi-scale configuration (C1, C2 and C3 spacecraft separated by 10 000 km and C3 and C4 separated by 1000 km) was changed to a perfect tetrahedron of 10 000 km to observe the polar cusp in February/March 2006. The solid state recorder capacity was increased from 5 to 7.5 Gbit by switching on the 3rd memory module. This will allow more flexibility in the data.

Operations and Archiving

JSOC and ESOC operations are continuing nominally. Work is progressing for the switch from VILSPA to Perth ground station starting early 2006. The data return from September 2005 to mid November 2005 was on average 99.8%.

The Cluster active Archive (CAA) is in beta testing phase since 26 September. Up to now, 63 software problems have been reported of which 19 are still open but none of them are critical; these are mostly related to the ingestion processes. The CAA will be opened on 1 February 2006. A new activity on cross-calibration between different instruments has been started. The first meeting was held in September and the next one will be in January 2006.

Science Highlights

A new multi-spacecraft method to estimate the magnetic reconnection rate has been developed and applied to the Cluster data. This requires at least two spacecraft in the reconnection layer at the same time. The results from one magnetopause crossing by Cluster showed that the reconnection rate is significantly lower than the rate obtained from previous observations. This finding could come from the fact that a certain type of reconnection called "component reconnection" was occurring at that time.

Last Update: 1 September 2019
18-Sep-2021 07:36 UT

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