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ARIEL: PHASE A & B1 SYSTEM STUDY (M4)

ESA Open Invitation To Tender AO8453
Open Date: 20/10/2015
Closing Date: 14/12/2015

Status: ISSUED
Reference Nr.: 15.164.16
Prog. Ref.: MP- Studies;General Studies
Budget Ref.: E/0401-01 - MP- Studies;E/0600-00 - General Studies
Special Prov.: BE+DK+FR+DE+IT+NL+ES+SE+CH+GB+IE+AT+NO+FI+PT+GR+LU+CZ+RO+PL+CA
Tender Type: C
Price Range: > 500 KEURO
Establishment: ESTEC
Directorate: Directorate of Science & Robotic Explor.
Department: Future Missions Preparation Office
Division: Advanced Payload and Missions Concepts Office
Contract Officer: Weihert, Beatrice
Last Update Date: 20/10/2015
Update Reason: Loaded a new Clarification(English version)

M4 System Studies. Parallel Phase A contracts. Parallel Phase B1 contracts for the selected M4 mission following the Phase A. The ARIEL mission will perform infrared (2-8 micron) spectroscopic observations of 500 warm/hot transiting exoplanets, to determine the chemical composition and physical conditions of exoplanet atmospheres. The spacecraft builds on the EChO M3 study heritage, with simplifications on the payload. The payload consists of: - a 3 mirror off-axis afocal telescope (1.1 m x 0.7 m M1) mounted in horizontal configuration as for EChO (a previous M3 candidate mission) and Planck (a flown mission) - a thermal shield assembly with 3 V-grooves for passively cooling the telescope to 70 K - a spectrometer covering 2-8 micron split into 2 channels - a VNIR instrument comprising 4 photometric channels (2 wide band, also used as FGS, and 2 narrow band)

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