PLATO Core Project Plan Presentation to the Independent
The M3 PLATO Mission - Agency, Industry and research institution collaboration in science projects
Presentation for ESA Industry Space Days
PLATO Team Thomas Walloschek, PLATO Spacecraft Engineering Manager
ESTEC, 12 September 2018 PTO-EST-MA-HO-0145 ESA UNCLASSIFIED - For Official Use Agenda
1. Science Objectives and Mission Overview 2. Mission Definition Status and System Description 3. Industrial Setup and Procurement approach
ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 2 PLAnetary Transits and Oscillations of stars
Science Objectives and Mission Overview
Presentation for ESA Industry Space Days, ESTEC, 12 September 2018 PTO-EST-MA-HO-0145 ESA UNCLASSIFIED - For Official Use PLATO Scientific Questions
PLAnetary Transits and Oscillations of stars (PLATO) is a mission to detect and characterise exoplanets and study their host stars
Focus on Earth like planets in the habitable zone of bright Sun-like stars to address 3 main questions: 1. How do planets and planetary systems form and evolve? 2. Is our Solar system special or are there other systems like ours? 3. Are there potentially habitable planets?
ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 4 Science Objectives
Determination of bulk properties (mass, radius, mean density) of exoplanets, including terrestrial planets in the habitable zone of solar-like stars Planet evolution with age Internal structure of stars Architecture, formation, and evolution of planetary systems Identification of good targets for spectroscopic follow-up of planet Super-Earth exoplanets with known radius and mass (1 ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 5 PLATO versus TESS, CHEOPS, K2 Although TESS and CHEOPS will detect and characterise small planets in the habitable zone of M dwarfs, the habitable zone of Sun-like stars is the main objective of PLATO. ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 6 Additional Science Other topics in planetary science: • Circumbinary planets • Exo-moons • Rings/comets • Misaligned planets • Planets around young and evolved stars Complementary science (e.g.): • Stellar and Galactic evolution: Gaia synergy • Gaia: radius, distance, proper motion, luminosity, Teff, log g • PLATO: stellar masses, ages • Accretion physics near compact objects ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 7 PLAnetary Transits and Oscillations of stars Mission Definition Status and System Description Presentation for ESA Industry Space Days, ESTEC, 12 September 2018 PTO-EST-MA-HO-0145 ESA UNCLASSIFIED - For Official Use PLATO Mission Status: key milestones Feb. 2014 SPC selects PLATO as M3 mission in ESA Cosmic Vision 2015-2025 June 2017 SPC adopts PLATO, with the procurement approach presented at the IPC in June 2017. Apr 2018 IPC approves placing a contract for the Design, Development and Support to Launch and Post Launch Operations (Phase B2, C/D and E1) of the PLATO spacecraft with OHB System AG (DE) and its Core Team (TASinF, TASinUK and RUAG Space System) 13 July 2018 Co-engineering and negotiations are completed ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 9 PLATO Components and Mission Segment Four main elements: 16 Dec 2026 1. Space Segment, 2. Ground Segment, 3. Launch Segment, 4. Ground follow-up data Special of PLATO: follow-up ground observations for final data products (Ground Based Observation Program – GOP) ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 10 PLATO Observations Uninterrupted high precision photometric measurements (in the visible band) of large samples of stars during long periods (typically 2 years) • Core sample: ~15,000 stars of mV < 11 to be complemented with radial velocity ground-based observations • Statistical sample: >245,000 stars of mV <13(16) Step-and-stare measurements are possible but not baselined yet Two main types of data products at Level 0: • (i) light curves consisting of time series of photometric data for each selected target, • (ii) ‘imagettes’ or raw cut-outs of selected targets for processing on-ground. Example: Kepler-10b (Batalha et al. 2011) Rp = 1.416 ± 0.03 RE, Mp = 4.6 ± 1.2 ME ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 11 PLATO Mission Summary PLATO Mission Summary Scientific Objectives To provide uninterrupted high precision photometric measurements of large samples of stars and generate light curves data in order to: • Identify, monitor and characterise extrasolar planetary systems • Characterise terrestrial habitable planets (radii, mass, composition) • Study the seismicity and irradiation of stars Reference Payload Multi telescope payload with 24 ‘ Normal’ cameras and 2 ‘Fast’ cameras based on 4 CCDs per camera (each with 4850x4850 pixels of 18 um size) on Focal Plane Unit. The cameras are mounted on an optical bench. The payload FoV is 2250 deg2 (~ 47 degree x 47 degree). Mission duration The nominal mission duration is 4.25 years; however the satellite will be built and verified for an in-orbit lifetime of 6.5 years and will accommodate consumables for 8.5 years, therefore enabling potential mission extensions. Orbit type Large amplitude free insertion halo libration orbit around the second Lagrangian point (L2) TM/TC link X-band for TT&C (up to 26 kbps) Science data downlink K-band TM selectable in steps from 16Mbps to 72Mbps; via Cebreros and Malargue with 5 passes per week of ~ 6 hours each (effective usable 5.5 h) Payload Data Level 0 and 1 under ESA responsibility (SOC); Level 2 and Level 3 performed processing by PLATO Mission Consortium and Ground Based Operations Programme team, with support of SOC and supervision of ESA Project Scientist. Data volume ~ 435 Gbits per day Launcher Soyuz-Fregat from Kourou (primary) and Ariane 6.2 from Kourou (backup). Launch service procurement is under control of ESA project. ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 12 Spacecraft Overview Modular spacecraft design: PLM and SVM separation 1 Optical Bench Assembly 2 Payload Thermal Shield 3 Payload Electronics Panel 4 Central Module (structure and propulsion) 5 Avionics and Electronics panels 6 Sunshield and Solar Array 2147 kg* Spacecraft at launch 2165 kg Launcher Performance (Soyuz as dimensioning launcher) 2100 W Generation * including 80 kg LVA and 126 kg propellant and system/ maturity margins ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 13 Spacecraft Overview: Service Module (SVM) Modular spacecraft design: PLM and SVM separation Mass Dry (w. margin) 870 kg Propellant 125 kg Structure CFRP Central Tube (1666 mm) and shear webs for primary load path (Al honeycomb core). Al Radiator panels. CFRP lightweight closure panels. Propulsion Monopropellant, blow-down system Thrusters 20 x 20 N Tank 2 x 96 l (PTD-96) COMMS X-Band: TMTC and ranging with 6 W RF power SSPA K-Band: high rate science at up to 72 Mbps Daily data Volume: 1425 Gbit X band downlink data rate: 26 kbps X band uplink data rate: 16 kbps Ka band downlink data rate: 16 Mbps - 72 Mbps Antenna 2 fixed X-Band Low Gain 1 steerable K-Band High Gain 1 steerable X-Band Low Gain AOCS 3 axis stabilized with 4 Reaction Wheels Fine Pointing Mode with Fine Guidance Sensor and High Performance Gyro CDMS On Board Computer with LEON-2 processor Mass Memory with > 2 TB EoL SSH and Solar 3 Body mounted panels with 2 deployable panels (winglets) Array Power generation EoL: 2100 W Thermal SVM equipment heat rejection via bottom radiator. Dedicated PLM electronics radiator with continuous deep space view. ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 14 Spacecraft Overview: Payload Module (PLM) Modular spacecraft design: PLM and SVM separation Mass Total (w. margin) 1061 kg Optical bench Configuration Stepped structure Material CFRP/Honeycomb Thermal FEE cooling by radiation into the optical bench, control which acts as a radiator to space. Cameras cooled by baffles, which act as individual camera radiators. Dedicated Payload Interface Unit (PLIU) for Telescope thermal control. Interfaces to CFRP bipods, rods with spherical bearings service offering a high level of iso-static decoupling Module from SVM. Electronic P/L electronic units mounted on the –x panel of boxes the SVM in combination with “waterfall” harness routing. SVM and PLM are interfacing by means of a quasi-isostatic mounting structure that allows high decoupling between the two modules. The sunshield surrounds both modules to ensure protection of the payload from sun illumination at all times. ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 15 PLATO Launcher Status Spacecraft compliant with envelope of the Soyuz-Fregat (baseline) and bottom envelope of Ariane 6.2 (back-up), thus allowing a dual launch configuration GAIA PLATO Spacecraft launched into parking orbit to protect the payload from direct sun illumination (direct injection with A6.2 under investigation) Spin-attitude profile (BBQ Mode) offered by the Soyuz-Fregat needs to be analysed and confirmed for Ariane 6.2 ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 16 PLATO Payload Overview Driving payload requirements Payload configuration Optimization of Field-of-view to maximize number of Multi-telescope configuration with 24 (4 bright stars observed simultaneously groups of 6) ‘normal’ cameras with CCD- based focal planes, in the visible Photometric accuracy (signal-to-noise and resolution) wavelength range (500-1000 nm) needed to detect Earth-sized planets and photometric dynamic range (bright stars with apparent magnitude Normal cameras monitor stars of mv<11 as well as fainter stars down to mv=16) magnitude mv >8 (cadence of 25 s) Attitude performance, stability and knowledge to Two ‘fast’ cameras observe brighter reduce error in the measured light-curves stars (mv ~ 4-8) at high cadence (2.5 s) and are used as Fine Guidance Sensor Level of on-board processing to limit data volume (FGS) for AOCS (high performance) Ground segment processing requirements and algorithms for data reduction . Each group with same FoV and 9.2 degrees off-set w.r.t payload module axis, . FoV ~ 2250 deg2 (~ 47 degrees x 47 degrees), the central area being observed by all 24 cameras ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 17 PLATO Payload: The Camera Design Key Camera elements Telescope Optical Unit (TOU), containing the support structure, the optics, the barrel and the baffle* for stray-light control and thermal radiation 6-lens dioptric design with a 120 mm entrance pupil and an effective FoV of 1100 deg2 (~ 33 degrees x 33 degrees) Focal Plane Assembly (FPA) containing the CCDs Each Telescope has a Front-End-Electronic (FEE), which drives the read- out, with its own FEE support structure (FSS) to mechanically support the FEE and thermally isolate them from each other CCDs Cameras operate in white light with a focal plane made of 4 large format CCDs (4510x4510 pixels of 18 um pitch, procured by ESA and provided as CFI to the PMC) GAIA PLATO *each group of Cameras has a slightly different baffles geometry ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 18 PLATO Mission Consortium (PMC) More than 100 Institutes, Research Centres, Universities and Industries involved! ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 19 PLATO Mission Status: Planning Milestone Category Supplier Expected period SC SRR I Industry 20.11.2018 Payload PDR II PMC 12.12.2018 M-SRR Project Q2 2019 SC PDR (possibly w M-PDR) I Industry Q3 2019 Critical Milestone I PMC, Industry Q3 2021 Payload CDR I PMC Q3 2021 Payload QR I PMC Q2 2023 SC CDR I Industry Q4 2023 M-CDR Project Q4 2023 SC-FAR (w QAR) I Industry Q1 2026 Launch Industry Q4 2026 In-orbit Commissioning end Industry Q1 2027 ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 20 PLAnetary Transits and Oscillations of stars Industrial Setup and Procurement Approach Presentation for ESA Industry Space Days, ESTEC, 12 September 2018 PTO-EST-MA-HO-0145 ESA UNCLASSIFIED - For Official Use Phase B2 C/D & E1: Geographical Return Very specific PLATO case Very tight and challenging geographical return requirements to rebalance the un- even elements of the geographical return of the Science Programme; PLATO is the last major procurement action of the 2015-2019 period. 11 countries declared “critical” in terms of geographical return Industry was requested to implement in their proposals quite stringent geographical return requirements for the “critical” countries and present a number of pre-selected suppliers. In addition also targets were reserved for SMEs in Germany and Switzerland ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 22 Phase B2 C/D & E1: Industrial Consortium ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 23 The Subsystem Layer Subsystem Status Company Country Payload Module Payload Interface (PLM PLIS) Core Team OHB Germany SVM Thermal Control (SVM TCS) Core Team OHB Germany AOCS Core Team TAS France Subsystem layer ElectricalPower (EPS) Core Team OHB Germany four are retained under responsibility of the SVM Structure (SVM STR) Pre-selected SAB Aerospace Czech Republic Core Team as considered critical for the Antenna Pre-selected Kongsberg Norway Spacecraft, respectively Payload performances Control and Data Management (CDMS) Pre-selected RUAG Sweden four have been pre-selected in critical countries Spacecraft Control Software (SCSW) Pre-selected SSF Finland (includes one SME) SVM harness (SVM HAR) BP Sun-shield / Solar Array (SSH/SA) BP four are left for procurement in Best Practices ChemicalPropellant Propulsion (CPPS) BP Communications (COMM) BP ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 24 Procurement Opportunities: Electrical / TTC Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company SVM EPS SVM Antenna Battery OHB S/S Low Gain Antenna SVM HAR Kongsberg Assembly (LGAA) SVM HAR S/S OHB K-Band Signal Routing Kongsberg COMM Assembly S/S Antenna Reflector Kongsberg Assembly (ARA) COMM S/S Lead OHB Antenna TVAC tests Kongsberg X-band Transponders COMMS lead K-band Transmitters COMMS lead K-band Travelling Wave COMMS lead Tube Amplifier ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 25 Procurement Opportunities: Data/AOCS/SW Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company SCSW CDMS S/S S/S Payload Data Storage RUAG SE ISVV SSF AOCS High Performance Gyro TAS-F (GYR) Coarse Rate Sensor (CRS) TAS-F Attitude Anomaly Detector TAS-F (AAD) Sun Presence Sensor (SPS) TAS-F Reaction Wheels (RW) TAS-F Star Tracker (STR) TAS-F Accelerometers (ACC) TAS-F ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 26 Procurement Opportunities: SSH/SA/CPPS Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company SSH - SA CPPS S/S S/S SSH/SA S/S lead OHB CPPS S/S lead OHB Photovoltaic SSH / SA Reaction/Orbit Control Assembly lead CPPS lead Thrusters SSH / SA SSH Structures lead Propellant Tank CPPS lead SSH / SA Sunshield MLI lead Fill & Drain Valves CPPS lead Sunshield Thermal SSH / SA Propellant Latch Valve CPPS lead Sensors lead Pressure Transducer SSH / SA CPPS lead Sunshield Heaters lead Propellant Filter CPPS lead Hold-Down & Release SSH / SA Mechanisms lead SSH / SA Sunshield Harness lead ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 27 Procurement Opportunities: TCS/ Structures Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company SVM TCS PLIS SVM MLI OHB PLM Tertiary Structures OHB SVM Heaters (SVM-TH) OHB PLM Thermal Sensors OHB SVM Thermal Sensors OHB (SVM-TS) PLM Heaters OHB SVM STR S/S S.A.B. Central Tube Aerospace S.A.B. CFRP Panels Aerospace S.A.B. Radiator Panels Aerospace S.A.B. Machined Parts Aerospace S.A.B. SVM STR MGSE Aerospace ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 28 Procurement Opportunities: MGSE Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company MGSE MGSE GSE Batch 1.1 GSE Batch 2 PLM DMBB Transport Container SVM & S/C Multi-Purpose Trolley OHB (DMBB-TE) (SVM S/C MPT) OHB PLM DMBB Integration Base CM & Avionic Module AIT Frame OHB Integration Stand (CM-IS) MGSE GSE Batch 1.2 Camera Handling Tool (CHT) OHB PLM and S/C Multi-Purpose Multi-purpose Assembly Plate OHB OHB Trolley+ (PLM S/C MPT Plus) (MAP) SVM & PLM Transport Container PLM Vibration Test Adapter OHB (SVM & PLM-TE) OHB PLM Thermal Test Adapter Integration Base Frame for PLM (PLM-IBF) Payload Electronics Panel Tilt OHB OHB Trolley (PEP-TT) Lifting Device for PLM IBF ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 29 Procurement Opportunities: MGSE Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company MGSE MGSE GSE Batch 2 GSE Batch 2 Lifting Device for PLM Mating S/C Vibration Adapter OHB with SVM S/C Acoustic Adapter OHB S/C Payload Electronics Panel OHB Tilting Device (PEP-TD) S/C TVAC Adapter AVM Transport Box (AVM-TE) OHB Central Module & S/C Lifting OHB Harness Support Structure for Device (CM & SC-Lift) OHB PLM Harness S/C MPT Interface Ring De-Mating Support COM Panel OHB OHB S/C AIT Adapter MGSE Test Rig for Payload Test OHB S/C AIT Clampband OHB ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 30 Procurement Opportunities: EGSE/ OGSE Issuing Issuing S/S Procurement Item S/S Procurement Item Company Company EGSE OGSE GSE Batch 1.1 GSE Batch 1.1 Camera Thermal Control System Camera alignment reference OHB EGSE cubes OHB EGSE PLIS Alignment reference cubes GSE Batch 1.2 EPS Special Check-Out TAS-UK OTMTM (Optical-to-Mechanical Equipment (EPS SCOE) OHB Transfer Mirrors) CDMS Special Check-Out TAS-UK Equipment (CDMS SCOE) TED Test GSE batch 1.1. OHB TT&C Special Check-Out TAS-UK Equipment (TT&C SCOE) OGSE GSE Batch 1.2 TMTC Front-end electronics TAS-UK (TT&C FEE) TED Test GSE batch 1.2 OHB RF Suitcase (RF-Suit) OHB ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 31 Procurement Opportunities: Services/ Test Facilities Issuing S/S Procurement Item Company Services Documentation Management and OHB Requirements Engineering Mission Analysis OHB S/C AIT Support OHB Test Facility DMBB OHB Test Facility PLM OHB Test Facility S/C STM + PFM OHB Satellite Database OHB ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 32 PLATO Industry Days (PID) When: 19-20 September 2018 Organised by: European Space Agency and OHB Gmbh (Germany) Where: European Space Research and Technology Centre (ESTEC) Keplerlaan 1, 2200 AG Noordwijk, The Netherlands Details: https://atpi.eventsair.com/QuickEventWebsitePortal/plato-industry- days/website ESA UNCLASSIFIED - For Official Use Thomas Walloschek / Presentation for ESA Industry Space Days | ESTEC, 12/09/2018 | Slide 33