The picture series shows how each Integrated Threat Assessment (ITA - the HITF is
currently working on ITA-7) considers
the effect of exposure time and the self-shadowing characteristics of
station during assembly. Because penetration risk is a function of
surface area and exposure time, the elements launched early in the build
sequence will have different shielding requirements than those sent up
later.
|
This stage adds the US Z1 truss, Russian Service Module,
Progress-M & Soyuz-TM.
|
The ISS has now grown to include the US Lab module & Airlock,
plus the Russian Docking Compartment.
|
When assembly reaches this stage, the ISS will have added the
central truss, the Russian Universal Docking Module, & the Solar Power
Platform.
|
The US Node2 and Japanese Experiment Modules are included in
this stage.
|
The US Hab module, the Russian Life Support modules, the
Docking/Stowage module, and the European module are added.
|
Finally, the US Centrifuge module & Crew Transfer Vehicle are
added, along with the Russian Life Support modules. For clarity, the
solar arrays have been omitted.
|
Notices: What You Need to Know About NASA JSC Web Policies
