Variable  Symbol  Value 
R.A. 1  a_{1}  290°.29484 
Dec. 1  d_{1}  +46°.51812 
R.A. 2  a_{2}  293°.03953 
Dec. 2  d_{2}  +43°.57410 
Exp. Time  Dt  5 seconds 
The apparent
angular velocity of the satellite is simply the apparent angle travelled over a
unit time, normally one second. The units are normally radians per second (rad/s). To use the Zenith Method, the apparent angular velocity (w_{app})
will need to be expressed in terms of radians pre second (rad/s) and
NOT degrees per second (°/s). w_{app} = p/180° { cos^{1} [ sin (d_{1}) sin (d_{2}) + cos (d_{1}) cos (d_{2}) cos (a_{2}  a_{1}) ] } / Dt w_{app} = 0.0123038 rad/s


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Step 2: Angular Velocity Was Last Modified On December 30, 2013 