The ESTEC Large Space Simulator is the largest test facility in Europe recreating space environment inclusive of sun and motion simulation.
The specific design and excellent performance assure that a wide variety of tests can be performed:
The Large Space Simulator consists of two vacuum chambers: in the main chamber the test item is installed on the motion system.
A variety of portholes allow the connection of lines to/from the spacecraft.
The auxiliary chamber provides the accommodation for the collimation mirror of the sun simulator.
Typical achievable vacuum
Lowest achieved vacuum
Temperature in LN2 mode
Heat Load in LN2 mode
Temperature in GN2 mode
150K - 350K
Heat load in GN2 mode
70 - 2600W/m²
Sun stability at 1 SC
In-plane uniformity at 1 SC
In-volume uniformity at 1 SC
1 SC - 10 SC*
Full cone angle
Max test object mass including adaptor
5000kg (7000kg static and 0° tilt angle)
Max moment of inertia
8000kg·m² (fast spin), 55000kg·m² (slow spin)
Unlimited (spin box), 270° (turn table and tilting joint)
0.25-2160°/min (spin box), 0.25-10°/min (turn table and tilting joint)