... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Flights Chronology . ... ISS Russian Segment . ... 1987 - Yuri Romanenko (326 days 11 hrs 38 min) . 1988 - Vladimir Titov, Musa Manarov (365 days 22 hrs 39 min) . ... In 1995 Valery Polyakov also became an absolute world record-breaker in total on-orbit stay time (678 days 16 hrs 33 min for 2 flights), in 1999 his achievement was exceeded by Sergey Avdeev (747 days 14 hrs 12 min for 3 flights). ...