Hi Mal ! ORBITRON (rev 3.71) is still working well, you can still download TLEs and integrate new satellites, and I have no problems under Win7/64. Have been using it from the start up to now. Via th
Orbitron is still available. However my favourite is Nova for Windows. www.nlsa.com. It's a bit old now but it has a nice map display and is free. 73 David On Wed, 12 Dec 2018 19:57 Tobias DG3LV <DG3