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.
Spring aeration should be done when the soil is moist and the soil temperatures are higher than 50 degrees, the recommended time frame is May 1 to June 15. This is, unfortunately, the time when most weed seeds are germinating also, which may be one of the reasons your colleague said spring aeration was useless..