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OSIRIS ASTROMETRIC INSTRUMENT
OSIRIS
provides the full metrology of the wave
front within the aperture of telescopes.
This allows light wave phase measurement
with the accuracy exceeding the one of the
optical elements manufacturing.
Among
all existing and planned projects "Astrometry"
is the only one that provides microsecond
accuracy of a single measurement. The OSIRIS
interferometer will make it possible to
solve basic astrometric problems - to obtain
high precision measurements of distances to
several thousands of stars and to define the
inertial celestial coordinate frame.
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Several versions of astrometric interferometers have been
designed. One of them is equipped with precise rotary driver
for pointing and could be mounted on a heavy space probe or on the orbital
station.
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The second version of the interferometer is designed for special
spaceprobe.
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LIDA will be launched being
packed under head fairing, and when launched, it will be unfolded into
full-dimension device with 200-cm baseline. |
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