I've been having a play with a satellite tracking program. You give it the TLE information and the Julian date and it returns the Position Vector and Velocity Vector in 3 parts for the given satellite. For instance the ISS's position and velocity vector at time of writing this are:
Position Vector:
1.43201229062465434E18
-2.13926476354018432E17
-9.0494444352008358E17
Velocity Vector:
3.191614378202316E-10
3.0853260273024627E-10
2.1811338307505537E-10
I wanted to look this up against a online tracker as a Longitude and Latitude and check that its correct. But I've no idea how to convert these to long and lat. Can any rocket scientists help me out? Is it even possible?