Distance from earth to gps satellite? Navigation satellites move around Earth at an altitude of about  1,243 miles to 22, 223 miles and at about the same speed of  rotation. These satellites are in what is calle â¦ d Medium-Earth  orbits (MEO).
When aerating your lawn, it is best to aerate on a day where the temperatures are milder and the soil in a moist condition, which will make the aerating process much easier. Aerating wet soil can be a real nuisance due to the fact that the plugs will get stuck in the hollow tines and can further compact you soil.
When you should aerate typically depends on the type of soil and grass you have. If you have a clay soil, you should generally aerate twice a year. If you have sandy soil, you should typically aerate once a year. If you have warm season grasses, late-spring to early summer is in most cases the best time to aerate. If you have cool season grasses, late summer or early fall is the best time.