A landing craft with mass 1.26×104 is in a circular orbit a distance 5.90×105 above the surface of a planet. The period of the orbit is 5600. The astronauts in the lander measure the diameter of the planet to be 9.80×106. The lander sets down at the north pole of the planet. What is the weight of an astronaut of mass 84.9 as he steps out onto the planet's surface?