Orbit Ascending Node
The ascending node is "the point in an orbit (longitude) at which a satellite crosses the equatorial plane from south to north." (National Aeronautics and Space Administration, 2014)
Sources
"Ascending Node". NASA Glenn Research Center, National Aeronautics and Space Administration. Last modified June 12, 2014.
https://www.grc.nasa.gov/www/k-12/TRC/laefs/laefs_a.html#ascending_node.
Accessed February 1, 2019.