Status Report

Changes to Russia’s Contribution to the ISS Under Evaluation

By SpaceRef Editor
January 30, 2002
Filed under , ,

Note: The following is an excerpt from CR 6291 USOS Core Complete Development Guidelines/Questions, 19 December 2001 [SSCB Baseline of Assembly Sequence Rev. C], (Powerpoint), NASA MSFC

Russian Configuration Changes

  • Augmented Service Module solar arrays
  • No DC2

    – the DC1 is relocated from the SM nadir to the SM zenith using the SSRMS

  • SPP is a simplified structure with only 4 solar arrays

    – There is no pressurized compartment or centralized heat rejection system

    Delivered on 2 carriers and assembled on-orbit (The first carrier is installed on the relocated DC1 using the SSRMS)

    -The ERA is used for the final deployment of SPP

  • The Multi-Purpose Module (also called the MTsM) is launched on Flight 9A.1 together with the SPP carrier
  • The UDM will be based on the FGB design

    – Articulating solar arrays and a deployed radiator

    – Provides distribution of SPP power to the Russian Segment

    – Only 2 mechanisms provided for the Research Modules

  • No change in Russian Segment Specification


  • Budget constraints have forced the Russians to develop a new Russian Segment configuration
  • This configuration concept is very preliminary

    – For example, there are 3 SPP concepts still under consideration

  • This is a courtesy delivery of the Russian Segment configuration for the US to identify any high level issues or constraints

    Isometric View from Starboard Side

    Zenith View

    VERY Preliminary Russian Segment EVA Plan

    Details of EVA, flight, and configuration interdependencies are preliminary

    — These are estimates based on concepts and will change

    Deferred EVAs

    Solar Array augmentation – 4 EVAs (may or may not happen)

    DC1 relocation – 4 EVAs

    MPM – 3 EVAs

    SPP-U installation – 5 EVAs

    UDM – 4 EVAs

    SPP-U – 4 EVAs

    RM1 – 4 EVAs

    RM2 – 4 EVAs

    Additional EVAs may be required during Shuttle flights

  • SpaceRef staff editor.