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. Ptaff and . Ca, ) d'erreur) La valeur de l'erreur varie de 0,2 m à 12,6 m. Les positions avec de fortes erreurs ne semblent pas être géographiquement réparties. La carte montre que le positionnement est relativement bon dans toute la zone où il y a des positions, Ptaff, 2015.

. Remarque, Etant donné que les positions disponibles sont peu nombreuses et pas réparties de manière spatiale régulière, il n'a pas été possible de lisser la carte