[C#] Computing North and South Node of Moon at certain time.

[MichalNemec]

Hello,
I would need help with calculation of north and south nodes of moon at certain time.
Im using library SharpAstrology with Human design. It does the calculation twice (design and personality gates) and then outputs data. It has option to implement IEphemerides with custom calculations.
This is the result of the nodes using swissEphNet using MOSHIER.

===================
PLANET: NorthNode
Time: 03.09.1993 10:21:00
Longitude: 247,02207157187155
Latitude: 0
Distance: 0,0025032873959667974
Speed Longitude: -0,19204804668064954
Speed Latitude: 0
Speed Distance: -1,5992484384658884E-05
===================
===================
PLANET: SouthNode
Time: 03.09.1993 10:21:00
Longitude: 67,02207157187155
Latitude: -0
Distance: 0,0025032873959667974
Speed Longitude: -0,19204804668064954
Speed Latitude: 0
Speed Distance: -1,5992484384658884E-05
===================
===================
PLANET: NorthNode
Time: 03.06.1993 12:18:47
Longitude: 252,1832115173398
Latitude: 0
Distance: 0,0025079874469134023
Speed Longitude: -0,00028650200290470784
Speed Latitude: 0
Speed Distance: 1,2570701787413995E-06
===================
===================
PLANET: SouthNode
Time: 03.06.1993 12:18:47
Longitude: 72,18321151733983
Latitude: -0
Distance: 0,0025079874469134023
Speed Longitude: -0,00028650200290470784
Speed Latitude: 0
Speed Distance: 1,2570701787413995E-06
===================

And using this package i got a slight issue with the calculated values.

public static PlanetPosition CalculateNorthNode(DateTime dateTime)
        {
            AstroTime start = new AstroTime(dateTime);

            // Find the next lunar node (ascending or descending)
            var nodeInfo = Astronomy.SearchMoonNode(start);

            // Ensure we get the North Node (Ascending)
            if (nodeInfo.kind != NodeEventKind.Ascending)
            {
                nodeInfo = Astronomy.SearchMoonNode(nodeInfo.time);
            }

            // Convert the node's time to a proper ecliptic longitude
            var moonGeoVector = Astronomy.GeoVector(Body.Moon, nodeInfo.time, Aberration.Corrected);
            var ecliptic = Astronomy.EquatorialToEcliptic(moonGeoVector);

            // The North Node is defined to be exactly on the ecliptic (latitude = 0°)
            double nodeLatitude = -0.0;

            // Apply the 180-degree shift conditionally based on the Node event
            double nodeLongitude = (nodeInfo.kind == NodeEventKind.Ascending)
                ? ecliptic.elon % 360
                : (ecliptic.elon + 180) % 360;
            
            Console.WriteLine("===================");
            Console.WriteLine("PLANET: NorthNode");
            Console.WriteLine($"Time: {dateTime}");
            Console.WriteLine($"Longitude: {nodeLongitude}");
            Console.WriteLine($"Latitude: {nodeLatitude}");
            Console.WriteLine($"Distance: {moonGeoVector.Length()}");
            Console.WriteLine($"Speed Longitude: {0}");
            Console.WriteLine($"Speed Latitude: {0}");
            Console.WriteLine($"Speed Distance: {0}");
            Console.WriteLine("===================");

            return new PlanetPosition()
            {
                Longitude = nodeLongitude,
                Latitude = nodeLatitude,
                Distance = moonGeoVector.Length(),
                SpeedLongitude = 0,
                SpeedLatitude = 0,
                SpeedDistance = 0,
            };
        }
        
        public static PlanetPosition CalculateSouthNode(DateTime dateTime)
        {
            AstroTime start = new AstroTime(dateTime);

            // Find the next lunar node (ascending or descending)
            var nodeInfo = Astronomy.SearchMoonNode(start);

            // Ensure we get the South Node (Descending)
            if (nodeInfo.kind != NodeEventKind.Descending)
            {
                // Find the next descending node (14 days after the first)
                nodeInfo = Astronomy.SearchMoonNode(nodeInfo.time.AddDays(14));
            }

            // Convert the node's time to a proper ecliptic longitude
            var moonGeoVector = Astronomy.GeoVector(Body.Moon, nodeInfo.time, Aberration.Corrected);
            var ecliptic = Astronomy.EquatorialToEcliptic(moonGeoVector);

            // The South Node is defined to be exactly on the ecliptic (latitude = 0°)
            double nodeLatitude = 0;
            
            
            Console.WriteLine("===================");
            Console.WriteLine("PLANET: SouthNode");
            Console.WriteLine($"Time: {dateTime}");
            Console.WriteLine($"Longitude: {ecliptic.elon}");
            Console.WriteLine($"Latitude: {nodeLatitude}");
            Console.WriteLine($"Distance: {moonGeoVector.Length()}");
            Console.WriteLine($"Speed Longitude: {0}");
            Console.WriteLine($"Speed Latitude: {0}");
            Console.WriteLine($"Speed Distance: {0}");
            Console.WriteLine("===================");
            
            return new PlanetPosition()
            {
                Longitude = ecliptic.elon,
                Latitude = nodeLatitude,
                Distance = moonGeoVector.Length(),
                SpeedLongitude = 0,
                SpeedLatitude = 0,
                SpeedDistance = 0,
            };
        }

and the output is:

===================
PLANET: NorthNode
Time: 03.09.1993 10:21:00
Longitude: 246,6218002843869
Latitude: -0
Distance: 0,0026422716154016284
Speed Longitude: 0
Speed Latitude: 0
Speed Distance: 0
===================
===================
PLANET: SouthNode
Time: 03.09.1993 10:21:00
Longitude: 66,62179699175361
Latitude: 0
Distance: 0,002642271623749481
Speed Longitude: 0
Speed Latitude: 0
Speed Distance: 0
===================
===================
PLANET: NorthNode
Time: 03.06.1993 12:19:13
Longitude: 252,18060576707384
Latitude: -0
Distance: 0,0025084950680617055
Speed Longitude: 0
Speed Latitude: 0
Speed Distance: 0
===================
===================
PLANET: SouthNode
Time: 03.06.1993 12:19:13
Longitude: 72,20750910120299
Latitude: 0
Distance: 0,0025791331296590495
Speed Longitude: 0
Speed Latitude: 0
Speed Distance: 0
===================

As you can see its different. Based on my testing, i dont think i need the speed properties, but there is something wrong and because of that human design gates do not match. Can someone please help me with this, i could not find any good resource to figure it out.