if time > 180 //ends after 180 seconds elapse
{
    exit(0);
}

else if (at('M')) //ends if one of two SPHERES are at station
{
    exit(0);
}
float target[3];
float diff[3];
else //otherwise shoot at earth
{
    target[0] = 0;
    target[1] = 1;
    //target[2] = 0;
    ZRSetPositionTarget(target);
    int a;
    for(a = 0;a <2 ;a++)
    {
        diff[a] = target[a] - myState[a];
    }
    ZRSetAttitudeTarget(mathVecNormalize(diff,2))
    while abs(diff[0])> .05) && abs(diff[1]) > .05)
    {
        int a;
        for(a = 0;a <2 ;a++)
        {
            diff[a] = target[a] - myState[a];
        }
        ZRSetAttitudeTarget(mathVecNormalize(diff,2))
        ZRSetVectorTarget([(diff[0],diff[1],0])
    }


}