# Orbit of a satellite Calculator

## Calculates the orbital radius and period, and flight velocity from the orbital altitude.

 Orbital altitude h km  from Earth's surface 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit Orbital radius r km Flight velocity v km/s Orbital period P (hh:mm:ss)
 $\normal flight\ velocity:\ v=\sqrt{\large\frac{398600.5}{6378.14+h}}\hspace{10} {\small(km/s)}\\orbital\ period:\ P=2\pi{\large\frac{6378.14+h}{v}}\hspace{10} {\small(sec)}\\$
Orbit of a satellite
 [1-10] /64 Disp-Num5103050100200
[1]  2018/11/13 05:53   Male / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Researching the GOSAT program of JAXA for a university assignment
[2]  2018/10/22 20:42   Male / 20 years old level / An engineer / Very /
Purpose of use
Another person quickly determining the orbital period of the proposed Chinese satellite. 300ish miles sounded ridiculously low and this confirms it. Silly news is silly.
[3]  2018/10/22 11:09   Male / 60 years old level or over / A retired person / Very /
Purpose of use
Finding the orbital period of the proposed Chinese artificial moon. If reported altitude of 310 miles is correct I don't see how this moon is going to stay put long enough to do any good.
[4]  2018/10/22 02:36   - / 50 years old level / Self-employed people / Very /
Purpose of use
Researching about how feasible is a "Chinese artificial moon" to provide dusk/twilight illumination for a fixed spot of 50km radius for city of Chengdu.
[5]  2018/09/23 22:19   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
Purpose of use
Fast and simple calculation while developing a simulator of the motion of bodies under gravitational forces
[6]  2018/07/30 10:18   Male / 60 years old level or over / High-school/ University/ Grad student / Useful /
Purpose of use
Calculating orbital altitudes and velocities for a satellite - for T19V TOS mission.
[7]  2018/07/26 08:51   Male / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Writing tool.
[8]  2018/05/21 08:55   Female / 20 years old level / High-school/ University/ Grad student / A little /
Purpose of use
Find orbital period of a satellite
Comment/Request
Does not take eccentricity into account? Cannot input the apogee and perigee.
from Keisan
This calculator assumes a circular orbit.
[9]  2018/05/12 21:26   Male / 20 years old level / An engineer / Useful /
Purpose of use
curiosity
[10]  2018/05/11 07:55   Female / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Acceptable orbits for artificial suns.

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