Rain attenuation calculation in satellite communication

[ibrahimth]

I'm working on LEO-1200 satellite communication, where I'm trying to compute the distance between the ground station and the satellite. Moreover, I needed to calculate topographic_altitude, rain_attenuation, and elevation_angle, but I got confused between these parameters.

lat : number, sequence, or numpy.ndarray
       Latitudes of the receiver points      #  this is the Latitudes  of the ground station 
   lon : number, sequence, or numpy.ndarray
       Longitudes of the receiver points  # this is the Longitudes of the ground station 
   lat_p : number
       Latitude projection of the point P (degrees)
   lon_p : number
       Longitude projection of the point P (degrees)
   lat_grid : number, sequence of np.ndarray
       Grid of latitude points to which compute the distance (degrees)
   lon_grid : number, sequence of np.ndarray
       Grid of longitude points to which compute the distance (degrees)
    h : float
       Orbital altitude of the satellite (km)    # this can be 1200 km
   lat_s : float
       Latitude of the projection of the satellite (degrees)
   lon_s : float
       Longitude of the projection of the satellite (degrees)

I appreciate any help you can provide.