Orbit of a satellite Calculator

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

Orbit of a satellite
Orbital altitude h
    1. km
    2.  from Earth's surface

Orbital radius r
    1.  
    2. km
Flight velocity v
    1.  
    2. km/s
Orbital period P
    1.  
    2. (hh:mm:ss)
    Orbit of a satellite
    [1-10] /90Disp-Num
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    [1]  2019/08/20 01:31   Male / 60 years old level or over / A retired person / Useful /
    Purpose of use
    answering hypothetical 'how fast must earth spin to levitate oceans?', hence zero altitude
    Comment/Request
    ability to change units would be handy. see http://www.calctool.org/CALC/phys/astronomy/earth_orbit
    However, your site is nicely instructional by including the formulas.
    [2]  2019/08/16 13:14   Male / 40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Wanted to check the orbital period of a 7000 km high satellite
    [3]  2019/08/09 02:27   Male / 30 years old level / High-school/ University/ Grad student / A little /
    Purpose of use
    rough estimate of orbit with desired period
    [4]  2019/07/11 07:13   Male / 60 years old level or over / A retired person / Very /
    Purpose of use
    Writing a story about asteroid mining, need lots of background information. Lots of fun!
    Comment/Request
    Thanks for this helpful tool. Asteroid mining in near-earth orbit is pretty complicated.
    [5]  2019/07/05 17:31   Male / 20 years old level / An engineer / A little /
    Comment/Request
    Orbital eccentricity missing
    [6]  2019/07/03 03:23   Female / 20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Astronomy homework
    [7]  2019/06/26 11:21   Male / 60 years old level or over / An engineer / Very /
    Purpose of use
    Orbital period calculation
    [8]  2019/06/23 06:38   Male / 20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    Trying to figure out how often a spy satellite would be able to take pictures of a particular region for a work of fiction.
    [9]  2019/05/25 09:06   Male / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Attempt at calculating the time of a Starlink pass.
    [10]  2019/05/24 12:57   Male / 40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Attempting to calculate when to look for Starlink satellite cluster during first few orbits, before orbital elements are posted.

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