The Zenit launch vehicle would deliver Zarya to a 190-kilometer reference orbit at an inclination of 51.6 degrees in the 15-tonne configuration.
NPO Energia resumed development of a Zarya-derived Assured Crew Return Vehicle in 1995 with Rockwell International and Khrunichev as partners.
The Zarya-derived Assured Crew Return Vehicle was designed to launch on the Space Shuttle and remain docked to the ISS for up to five years.
Zarya had a certified on-orbit life of at least 195 days, later increased to 270 days.
Zarya’s crew module reused Buran-derived reusable thermal protection and could be reused up to 30 to 50 times.
A satellite launched from Baikonur on a Progress that is deployed from the ISS gets the COSPAR designation based on the Zarya segment of the ISS.