kOS.Suffixed.VesselTarget.GetOrbitAtUT C# (CSharp) Method

        public override Orbit GetOrbitAtUT(double desiredUT)
        {
            // After much trial and error this seems to be the only way to do this:

            // Find the lastmost maneuver node that occurs prior to timestamp:
            List<ManeuverNode> nodes = Vessel.patchedConicSolver == null ? new List<ManeuverNode>() : Vessel.patchedConicSolver.maneuverNodes;
            Orbit orbitPatch = Vessel.orbit;
            for (int nodeIndex = 0; nodeIndex < nodes.Count && nodes[nodeIndex].UT <= desiredUT; ++nodeIndex)
            {
                orbitPatch = nodes[nodeIndex].nextPatch; // the orbit patch that starts with this node.
            }

            // Walk the orbit patch list from there looking for the lastmost orbit patch that
            // contains this timestamp, or if this timestamp is later than the end of the last
            // patch, then just return the last patch (this can happen because a patches' EndUT
            // is one period of time and we might be predicting for a point in time more than one
            // period into the future.)
            while (!(orbitPatch.StartUT < desiredUT && desiredUT < orbitPatch.EndUT))
            {
                // Sadly the way to detect that you are at the end of the orbitPatch list is
                // messy and inconsistent.  Sometimes KSP's API gives you a list that ends
                // with null, and other times it gives you a list that ends with a bogus
                // dummy orbit patch that is not null but contains bogus data and will crash
                // KSP if you try calling many of its methods.  The way to detect if you have
                // such a bogus patch is to check its activePath property:
                if (orbitPatch.nextPatch != null && orbitPatch.nextPatch.activePatch)
                {
                    orbitPatch = orbitPatch.nextPatch;
                }
                else
                {
                    break;
                }
            }

            return orbitPatch;
        }