Sit start low on a left hand crimp and a right hand edge. Go left to a small sidepull-crimp, set a shady right heel on the arete, and go for the lip if you can reach, otherwise try to use the right arete to get closer to the lip.
Upper Satellites in between 2nd and 3rd Flatiron, in the scree field as you walk away from Hailey's Comet towards the 3rd Flatiron. There's a group of large boulders, some of them leaning on each other. The Moon Walk is in a pit in the center of the boulders. Also see Bloc Party, same area.