HD 82943 hosts a mysterious multi-planet system in the 2:1 mean-motionresonance that puzzles astronomers for more than a decade. We describe our newanalysis of all radial velocity data currently available for this star,including both the most recent Keck data and the older but more numerousCORALIE measurements. Here we pay a major attention to the task of optimal scheduling of the futureobservation of this system. Applying several optimality criteria, wedemonstrate that in the forthcoming observational season of HD 82943 (thewinter 2014/2015) rather promising time ranges can be found. Observations ofthe near future may give rather remarkable improvement of the orbital fit, butonly if we choose their time carefully.
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