caa a22 4500 606245146 CHVBK 20210128101334.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s12567-014-0070-0 doi (NATIONALLICENCE)springer-10.1007/s12567-014-0070-0 ExoMars 2016, Orbiter module bus a GNC development update [Elektronische Daten] [H. Renault, N. Sergent, M. Chevallier, N. Kutrowski, A. Bacchetta, D. Temperanza] ExoMars programme is part of a cooperation between ESA and Roscosmos. It foresees two missions to Mars that aim to searching for signs of past and present life on Mars, investigating the Martian atmosphere and surface and demonstrating the technologies needed to land on Mars and perform robotic exploration. The first spacecraft launched in early 2016 is composed of an Orbiter module (the Trace Gas Orbiter, TGO) carrying an entry descent and landing demonstration module (EDM) The Orbiter GNC design shall allow the spacecraft composite to cruise towards Mars, to accurately release the EDM, to make orbit insertion in Mars orbit with chemical propulsion system, to circularise the orbit by aerobraking and perform atmosphere observation with the four payloads instruments while relaying communication from assets on Mars surface. After a brief presentation of the ExoMars mission and constraints, the paper first provides an overview of the TGO GNC design (in term of mode and sensor/actuator), then an updated status of development is given. A special emphasis is given to the GNC level implementation of the aerobraking strategies and on specific FDIR features. CEAS, 2014 Exomars 2016 nationallicence GNC nationallicence Aerobraking nationallicence ACC : Accelerometer nationallicence AEBM : Aerobraking mode nationallicence AIT : Assembly integration test nationallicence ARD : Atmospheric rate damping nationallicence CSS : Coarse sun sensor nationallicence DM : Descent module nationallicence DSMC : Direct simulation MonteCarlo nationallicence EDM : Entry descent module nationallicence ESA : European space agency nationallicence FDIR : Failure detection isolation recovery nationallicence GNC : Guidance navigation control nationallicence HGA : High-gain antenna nationallicence GYR : GYRometer nationallicence IMU : Inertial measurement unit nationallicence ME : Main engine nationallicence MOI : Mars orbit insertion nationallicence NOMP : Nominal mode with propulsion nationallicence NOMR : Nominal mode with reaction wheel nationallicence OCM : Orbit correction mode nationallicence PCU : Power conditioning unit nationallicence P/L : Payload nationallicence PTE : Periapsis timing estimator nationallicence PUDE : Pop-up direction estimator nationallicence RCT : Reaction control thruster nationallicence RW : Reaction wheel nationallicence SA : Solar array nationallicence SADM : Solar array drive mechanism nationallicence STR : Star tracker nationallicence TGO : Trace gas Orbiter nationallicence SAM : Sun acquisition mode nationallicence S/C : Spacecraft nationallicence SGM : Safeguarded memory nationallicence SMU : Spacecraft management unit nationallicence Renault H. Thales Alenia Space, Cannes, France aut Sergent N. Thales Alenia Space, Cannes, France aut Chevallier M. Thales Alenia Space, Cannes, France aut Kutrowski N. Thales Alenia Space, Cannes, France aut Bacchetta A. Thales Alenia Space, Torino, Italy aut Temperanza D. European Space Agency, Noordwijk, Netherlands aut CEAS Space Journal Springer Vienna 7/2(2015-06-01), 105-118 1868-2502 7:2<105 2015 7 12567 https://doi.org/10.1007/s12567-014-0070-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s12567-014-0070-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Renault H. Thales Alenia Space, Cannes, France aut NATIONALLICENCE 700 1- Sergent N. Thales Alenia Space, Cannes, France aut NATIONALLICENCE 700 1- Chevallier M. Thales Alenia Space, Cannes, France aut NATIONALLICENCE 700 1- Kutrowski N. Thales Alenia Space, Cannes, France aut NATIONALLICENCE 700 1- Bacchetta A. Thales Alenia Space, Torino, Italy aut NATIONALLICENCE 700 1- Temperanza D. European Space Agency, Noordwijk, Netherlands aut NATIONALLICENCE 773 0- CEAS Space Journal Springer Vienna 7/2(2015-06-01), 105-118 1868-2502 7:2<105 2015 7 12567