17:08 Early take-off for long flight: 9 am local time 19:31 Lost satcom at 75 degrees N 21:07 Started down for 4 th dip over the ocean. Stayed high a bit longer to get us low at 87 degrees north 21:32 Low but still not to 87 N so climbed to 5 kft for 2 min, then low again at 87 Hit 87.0 and turned at ~ 1000 ft 23:45 Satcom restored at ~73.5 degrees N