SMOS Payload performance maintenance: Impact of anomalies and operational strategies
نویسندگان
چکیده
The SMOS Payload is a single instrument, the Microwave Imaging Radiometer using Aperture Synthesis (MIRAS), which was built by EADS-CASA Espacio. MIRAS consists in a passive microwave (L-Band) 2D-interferometer with a Y-shaped 3 arms synthetic aperture antenna. Since PLM switch-on in November 2009, several anomalies have taken place which in some cases put constraints on the availability of the instrument. We present here a brief description of the instrument and of the reported anomalies, and which measures have been taken to reduce their impact on the mission. We also present unavailability figures, showing that the operational measures that were taken have been successful to bring the unavailability time down to a minimum.
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