Proba-hilistic optimization design offers tools for fault detection by considering the required navigation performance (RNP) parameter and the uncertainty noise.

充分考虑所需导航性能参数和不确定的噪声的因素，运用概率优化方法进行故障监测。

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This second mission is supposed to loft the Proba-V satellite to collect data on land cover and vegetation changes over the entire globe every couple of days.

BBC: Bad weather postpones Europe's Vega rocket launch

Its primary payload was the 140kg Proba-V spacecraft.

BBC: Esa's Vega rocket puts Proba-V vegetation mission in orbit

The crisis began in August when 528 cubic metres (116, 000 gallons) of toxic liquid unloaded from a ship called the Proba Koala were dumped in 11 open-air sites in residential areas around the commercial capital, Abidjan.

ECONOMIST: A toxic-waste scandal shows up the country's fragility