Computer Science – Performance
Scientific paper
Aug 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..835g&link_type=abstract
Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 835-838
Computer Science
Performance
4
Scientific paper
ESA is supporting an industrial study aimed at preliminary assessment of some critical aspects of the GAIA mission implementation: hereafter, our study approach is presented. The Fizeau interferometer of GAIA features a strict correlation between the conventional telescope and interferometer concepts and problems. The wide angle measurement concept is based on the stability of the basic angle between two macroscopic structures: the implementation is challenging. An experiment will address feasibility and performance of metrology at sub-nanometer level, over 0.5 m distance, controlling displacement and relative orientation (`tip-tilt') of two platforms, simulating optical elements of GAIA. System definition is based on the scientific rationales of GAIA; however, trade-off among competing requirements, if needed, should neither descope the mission nor push any critical parameter to its limiting values. Most of the critical aspects which arose in the Cambridge 1995 workshop on GAIA are being addressed, and some viable solutions seem to be taking shape: microarcsecond global astrometry is becoming closer to implementation.
Bertinetto F.
Bisi Mario
Canuto Enrico
Carollo Daniela
Cesare Stefano
No associations
LandOfFree
GAIA Feasibility: Current Research on Critical Aspects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GAIA Feasibility: Current Research on Critical Aspects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GAIA Feasibility: Current Research on Critical Aspects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1879445