The Ephemeris display consists of 6 sub-screens that show the values of all the fields that are transmitted as part of the Ephemeris message. Every time 'e' is entered the next sub-screen is displayed until the last one is reached at which point it starts from the beginnning.
The headers in the various ephemeris sub-screens use the same names as those found in the NATO stanag doc that describes the message format and signal structure of the Navstar system.
