Is my code correct to get six Keplerian parameters?

Question

Is my code correct to get six Keplerian parameters?

function calculateKeplerianParameters($angle, $speed, $mu)
{
   
   $radius = ($mu / pow($speed, 2)) * (1 / (1 + $speed * $speed / $mu * pow(cos($angle), 2)));

  
   $radialSpeed = sqrt($mu / $radius) * cos($angle);

 
   $angularSpeed = $mu / pow($radius, 2);

  
   $angularMomentum = $radius * $radialSpeed;

  
   $inclination = acos($angularMomentum / sqrt($mu * $radius));


   $altitude = $radius - $mu / $speed;



   return array(
       'Radius' => $radius,
    'RadialSpeed' => $radialSpeed,
       'AngularSpeed' => $angularSpeed,
    'AngularMomentum' => $angularMomentum,
       'Inclination' => $inclination,
    'Altitude' => $altitude
   );
}


$angle = deg2rad(45);
$speed = 1000; 
$mu = 398600; 


$keplerianParameters = calculateKeplerianParameters($angle, $speed, $mu);


print_r($keplerianParameters);