Instantaneous satellites state and orbital parameters

	TLE	18274.17114021 2018-10-05 12:23:44.5
	Rave	6789.1 (415.3)
	Rmin	6744.2 (411.3)
	Rmax	6755.9 (420.3)
	e	0.123456
	Vave	7664.4
	Vmin	7659.2
	Vmax	7671.8
	T	95.33
	TLE
	Rave
	Rmin
	Rmax
	e
	Vave
	Vmin
	Vmax
	T
	TLE
	Rave	6789.1 (415.3)
	Rmin	6744.2 (411.3)
	Rmax	6755.9 (420.3)
	e	0.123456
	Vave	7664.4
	Vmin	7659.2
	Vmax	7671.8
	T	95.33
	TLE
	Rave
	Rmin
	Rmax
	e
	Vave
	Vmin
	Vmax
	T
	TLE
	Rave
	Rmin
	Rmax
	e
	Vave
	Vmin
	Vmax
	T
	TLE
	Rave
	Rmin
	Rmax
	e
	Vave
	Vmin
	Vmax
	T
	TLE
	Rave
	Rmin
	Rmax
	e
	Vave
	Vmin
	Vmax
	T

Here's the instantaneous radius vector and orbital speed of the selected satellite for 1 orbit centered at the TLE epoch.
There are seven graphs that cover about 30 days (1 graph every 5 days).

Abbreviations meaning

TLE: the epoch of the TLE used (along with the SGP4/SDP4 propagator) to obtain the satellite state.

R_ave, R_min, R_max: average, minimum and maximum radius vector in kilometers. R_ave is equivalent to the semi-major axis. The values in parentheses are the shown values minus 6371 (just to show an approximate altitude).

e: eccentricity calculated as (R_max - R_min) / (R_max + R_min).

V_ave, V_min, V_max: average, minimum and maximum orbital speed in m/s. V_ave is calculated as the length of 1 orbit divided by the orbital period.

T: orbital period in minutes calculated as the time taken by the satellite to make a full revolution with respect to the mean equinox of date (this is the "true" orbital period and it is different from the period obtained from the TLE mean motion field).


The graphs show 1.6 orbits, but R_ave and V_ave are calculated for exactly 1 orbit.