Our involvement in monitoring the North Pole, the Arctic area, is through Radarsat-1 and Radarsat-2. These are singular spacecraft that have capabilities of not only the North Pole but other areas they cover.
The continuation of the radar monitoring with specificity to the Arctic requires the addition of the Radarsat Constellation Mission for a number of reasons. One, the orbit is different, as described earlier. The frequency of visits is higher, and the design uniqueness of the RCM program—