53P KURS-NA Checkout: 53P performed a rendezvous demo/flyby today. This demonstration was used to check out the new KURS-NA System. During today’s flyby, the closest point of approach was 1.6 km. The KURS-NA System is in development for next-generation Soyuz-MS/Progress-MS to replace the KURS-A antennas since many of the components are no longer produced. Preliminary …