Geocentric Coordinate Time Geocentric Coordinate Time Geocentric Coordinate Time (TCG - Temps-coordonnée géocentrique) is a coordinate time standard intended to be used as the independent variable of time for all calculations pertaining to precession, nutation, the Moon, and artificial satellites of the Earth. It is equivalent to the proper time experienced by a clock at rest in a coordinate frame co-moving with the center of the Earth: that is, a clock that performs exactly the same movements as the Earth but is outside the Earth's gravity well. It is therefore not influenced by the gravitational time dilation caused by the Earth. TCG was
Central Township, Perry County, Missouri Central Township, Perry County, Missouri Central Township is one of the eight townships located in Perry County, Missouri, in the United States of America. Central Township is located in the central part of Perry County, and hence so named. The Geographic Names Information System (GNIS) lists five townships name "Central", including this one, in various counties of Missouri. The first European settlers in what is now Central Township arrived in 1800 and were Kentuckians who laid down farms around "The Barrens". They had called their home in Kentucky "The Barrens", a term used extensively to describe land which combines some