Solution
= Solution
The https://www-thphys.physics.ox.ac.uk/people/AndreiStarinets/TUTORIALS_NOTES_GR/gr-cosmology-exam-paper-2011-solutions.pdf#page=7[official notes, PDF pp. 7–8, handwritten pp. 1–2] calculate both elapsed <proper times> and their weak-field ratio for satellite A and the polar station.