public void Perigee()
        {
            //Deserialize
            using (StreamReader streamReader = new StreamReader("CelestialData\\Perigee.txt"))
            {
                BinaryFormatter binaryFormatter = new BinaryFormatter();
                Perigee         ev = (Perigee)binaryFormatter.Deserialize(streamReader.BaseStream);

                PerigeeApogee lE1 = ev.LastPerigee;
                PerigeeApogee nE1 = ev.NextPerigee;
                PerigeeApogee lE2 = data.Perigee.LastPerigee;
                PerigeeApogee nE2 = data.Perigee.NextPerigee;

                PropertyInfo[] properties = typeof(PerigeeApogee).GetProperties();
                foreach (PropertyInfo property in properties)
                {
                    var l1 = property.GetValue(lE1);
                    var l2 = property.GetValue(lE2);
                    var n1 = property.GetValue(nE1);
                    var n2 = property.GetValue(nE2);

                    Assert.AreEqual(l1.ToString(), l2.ToString(), $"Last Perigee: {l2} not expected.");

                    if (l1.GetType() == typeof(Distance) && l2.GetType() == typeof(Distance))
                    {
                        PropertyInfo[] propertiesSub = typeof(Distance).GetProperties();
                        foreach (PropertyInfo propertySub in propertiesSub)
                        {
                            var l1Sub = propertySub.GetValue(l1);
                            var l2Sub = propertySub.GetValue(l2);
                            Assert.AreEqual(l1Sub.ToString(), l2Sub.ToString(), $"Last Perigee {propertySub.Name}: {l2Sub} not expected.");
                        }
                    }
                    Assert.AreEqual(n1.ToString(), n2.ToString(), $"Next Perigee: {n2} not expected.");

                    if (n1.GetType() == typeof(Distance) && n2.GetType() == typeof(Distance))
                    {
                        PropertyInfo[] propertiesSub = typeof(Distance).GetProperties();
                        foreach (PropertyInfo propertySub in propertiesSub)
                        {
                            var n1Sub = propertySub.GetValue(n1);
                            var n2Sub = propertySub.GetValue(n2);
                            Assert.AreEqual(n1Sub.ToString(), n2Sub.ToString(), $"Next Perigee {propertySub.Name}: {n2Sub} not expected.");
                        }
                    }
                }
            }
        }
        public bool Check_Apogee()
        {
            IFormatter formatter = new BinaryFormatter();

            //Deserialize
            using (StreamReader streamReader = new StreamReader("CelestialData\\Apogee.txt"))
            {
                BinaryFormatter binaryFormatter = new BinaryFormatter();
                Apogee          ev = (Apogee)binaryFormatter.Deserialize(streamReader.BaseStream);

                PerigeeApogee lE1 = ev.LastApogee;
                PerigeeApogee nE1 = ev.NextApogee;
                PerigeeApogee lE2 = this.Apogee.LastApogee;
                PerigeeApogee nE2 = this.Apogee.NextApogee;

                PropertyInfo[] properties = typeof(PerigeeApogee).GetProperties();
                foreach (PropertyInfo property in properties)
                {
                    var l1 = property.GetValue(lE1);
                    var l2 = property.GetValue(lE2);
                    var n1 = property.GetValue(nE1);
                    var n2 = property.GetValue(nE2);

                    if (l1.ToString() != l2.ToString())
                    {
                        return(false);
                    }
                    if (l1.GetType() == typeof(Distance) && l2.GetType() == typeof(Distance))
                    {
                        PropertyInfo[] propertiesSub = typeof(Distance).GetProperties();
                        foreach (PropertyInfo propertySub in propertiesSub)
                        {
                            var l1Sub = propertySub.GetValue(l1);
                            var l2Sub = propertySub.GetValue(l2);
                            if (l1Sub.ToString() != l2Sub.ToString())
                            {
                                return(false);
                            }
                        }
                    }
                    if (n1.ToString() != n2.ToString())
                    {
                        return(false);
                    }
                    if (n1.GetType() == typeof(Distance) && n2.GetType() == typeof(Distance))
                    {
                        PropertyInfo[] propertiesSub = typeof(Distance).GetProperties();
                        foreach (PropertyInfo propertySub in propertiesSub)
                        {
                            var n1Sub = propertySub.GetValue(n1);
                            var n2Sub = propertySub.GetValue(n2);
                            if (n1Sub.ToString() != n2Sub.ToString())
                            {
                                return(false);
                            }
                        }
                    }
                }
            }
            return(true);
        }