From ISS On-Orbit Status Report for 16/12/2010.
Soyuz 25S Flight:
TMA-20/25S is performing nominally during its chase after the station, and its crew is reportedly feeling fine. Docking is scheduled tomorrow afternoon at ~8:12 PM GMT. [TMA-20 is one of the older Soyuz versions, without the digital technology used in the new TMA-M generation (like TMA-01M/24S), which Russian experts have called "a Leap into the 21st Century". The analog motion, power & temperature control systems have been replaced in TMA-M with digital subsystems. A new onboard computer has taken the place of the 30 year old analog computer, and telemetry/comm. equipment was also upgraded. All together 36 outdated systems were eliminated and replaced with 19 modern units. The work-over results in less power consumption and faster manufacturing flows.]
• Flight Day 2 (16/12):
After the crew went to sleep this morning at ~2:53 AM GMT, today's schedule calls for the following sequence of activities: Crew wake-up at 11:36 AM GMT, post-sleep activities; prepare BO (Orbital Module) workstation; uplink data for DV3 burn; crew tests RUO-2 & RUD-2 rotational and translational hand controllers; crew establishes DV3 attitude with hand controllers; execute DV3 burn (~7:49 PM GMT) using the SKD engine; Soyuz goes back to ISK "barbecue" attitude; crew swaps LiOH CO2 (carbon dioxide) filters in BO (~8:49 PM GMT); crew sleep (1:45 AM GMT Friday 17/12).
• Flight Day 3 (17/12):
Crew wake-up at ~11:26 AM GMT; post-sleep activities; DV4; KURS-A heaters activated; data for automated rendezvous uplinked; crew dons Sokol pressure suits; SOA deactivated in BO and activated in SA (Descent Module); crew ingresses SA, closes BO-SA hatch and dons harnesses for docking; DV5 burn; automated rendezvous & docking at MRM-1 via KURS-P in ISS & KURS-A in Soyuz; docking (~8:12 PM GMT); pressure equalized between Soyuz and ISS; crew transfer to ISS.
