Plateau d

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Plateau dArchitecture des Systèmes Orbitaux
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PASO is

• A TRANSVERSE organization within CNES Toulouse,
  in charge of preliminary studies and phases 0
• with
• An office with full time engineers ( 5 to 10
  pers)
• A nominative group of 60 affiliate part time
  agents from different specialized services
  (Technical, thematical, operation, costing,..)

PASO was created on end 2001, this organization
ensures - the sharing and focusing of
necessary human resources and competences (that
cannot be dedicated to the future) -
homogeneous study skills and reports (helping
rational projects choices) - the development of
means/tools (Concurrent Engineering) PASO was
confirmed as is within the new matrix like CNES
Toulouse organization in 2003.
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Completed studies in 2002, 2003 and 2004

• Optimum use of large and small Buses by a
  telecom operator
• Potential of space for monitoring of frequency
  Spectrum
• Small data relay for improving reactivity of LEO
  imaging systems
• Argos Evolution on Microsat
• 2 Studies SPOT5 F.O. HRS on microsat et HRG
  on mini or microsat gtgt
• Superspectral France/israel (Venus)
• Atmospheric Sounding
• Geostationary optical Imaging
• microsat Radar
• Smart2/interferometry
• Symbol X ( Formation Flying)
• Evaluation responses CNES Call For Ideas For.
  Flying
• 2 Studies Declic Inserts on ISS
• Sat 2000 Bus with high DV for mission GEO,
  Mars, Moon via GTO AR5
• Spaces Stakes on micro/nano technologies
• Potential of low flying and elliptical Orbits for
  imaging

35 h.y 350 K (excluding running charge and
tools develop)
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gt 22 studies completed in 2005

• Service de communication et Surveillance ATM
• Scenarios pour mission opérationnelle de Chimie
  atmosp.
• GMES Continental
• GMES Ocean
• Soutien réponse AO ESA Chimie Recherche
• Soutien réponse AO ESA Hydrologie Continent.
• Vol en Formation Aspics
• Vol en Formation Symbolx
• Vol en Formation Max
• Vol en Formation Pegase
• Vol en Formation Romulus
• Scenarios Post Helios et Post Pleiades
• Satellite réactif Défense
• Geocroiseur
• Dune exploration matière noire
• Sampan exploration Fond cosmique diffus
• Scénarios demport T2L2
• SENS, Krit
• Nouvelles filières de plateformes

28 H.an 1,1 M (hors fonctionnement et moyens)
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Entre 18 et 23 études demandées pour 2006

• Service de communication et Surveillance ATM
  (suite)
• Charges Utiles en bande KU/X flexibles Duales
• Système satellitaire de diffusion dalerte
• Système télécom. pour mobile post 3G
• Architecture pour service TVHD
• GMES Lego
• GMES couleur de leau
• REX IASI suite IASI
• GEO 100m
• Roue bande X
• Vol en formation SAR bande P
• OSCAR (mesure de la vitesse des courants marins)
• Roue interferométrique Oscar Romulus (ROR)
• ROMULUS (suite)
• SMESE
• SVOM
• PHARAO
• Nouvelle filiaire de plateforme (suite)

gt 5 Télécom/nav
gt 9 Observation
28 h.an 0,7 M
5 Vol en Formation (avec ONERA)
2 Defense
3 Autres Sciences
1 Génerique
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PASO Study Process

• Paso study plan is established on annual base and
  revised periodically (study subjects issued from
  programmatic needs and CNES internal Call for
  ideas)
• Studies are divided into 3 phases separated by
  Key point
• PH 01 ( 1 To 6 months duration) -gt To Identify
  the points that drive the mission needs, those
  that drive the technical difficulty and the
  costs, those that drive the future programmatic
  (brick reuse, cooperation) and to map them into a
  set of scenarios
• PH 02 (2 to 3 months)-gt To optimize, refine,
  Compare the scenarios (cost, performance,
  criticality)
• PH03 (2 to 3 months) -gt Full Pre-Sizing of the
  preferred Scenario. Optional, only if necessary
  for a correct assessment of Criticality
  /performance/Cost
• NOTA
• - Concurrent Engineering ( CDF) is used in PH 03
  and sometimes in PH 02
• - The 3 phases cannot be fully sequential (need
  of some back and forward )
• The Study report contents
• Mission requirement for Phase A entrance
• Reference technical solution/architecture
• Study limits and sensitivity factors
• Links with R/T programme (use of technologies
  being developed and/or new needs)

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PASO Processus
Consistancy/viability of scenarios
Study perimeter and drivers
Scenarios set-up
Key point
1
i
x
x
x
Programmatic.
Technical
Mission needs
Ex.
Ex.
N
Ex.
To combine drivers options into scenario that
make sens..
To Identify driving parameters, interactions and
related options
Local analysis around drivers
Study Report
Optional Overal pre-sizing
Scenario optimisation, selection
Key point
Choice justif.
Mission spec. and referencesolution

• Budgets at all levels
• Only on the prefered scenario

Study limits
Follow on (including R/T)
Ex.
Ex.
Analysis and budgets at the right level for
comparison (perf, cost, criticality)
only if necessary for correct assessment
(Criticality /performance/Cost)
To transmit to project with Everything that
justify choices and enable future revisions
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CIC Conception en Ingenierie Concourante
Payload
Input
sheet
Discipline dedicated tools
Output
sheet
Calculation
sheet
Results
sheet
Risk
Data Exchange
System
MULTIMEDIA WALL
data
Team Lead
Doc.n
Cost
System
Cost
Customer and Ad-Hoc Experts
Customer and Ad-Hoc Experts
Config.
AOCS
Subsystem n-
Risks
Sheets data exchange And quick satellites
budgets (appropriation/adaptation ESA/ESTEC)
Struct.
Progr.s
Mechanisms
Simulat.
Decentralized mode every body in his office
Integrated Session
Instruments
Thermal
AOCS
Power
Propulsion
DHS
GS Ops
TTC
Mission
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CIC Conception en Ingénierie Concourante
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Links with R/T

• PASO and R/T -gt 2 complementary processes for
  preparing the future in CNES
• R/T -gt To master the bricks (technology,..) for
  future missions
• PASO -gt To design future missions with good
  trade-offs between needs, costs, and risks.
• A PASO study must well identify the bricks
  that back the mission design and trade-offs and
  that needs R/T effort.
• A R/T action can need first a PASO study to
  identify the success conditions of a new
  technology ( perf., interfaces, cost)
• A PASO study is short (3 to 12 months), R/T
  actions can last several years.
• The TRL (Technology Readiness Level) and
  roadmap approaches consolidate the R/T- PASO
  link

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Exemple Paramètres déterminants besoins mission
(Sampan)
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Exemple Paramètres déterminants techniques
(Sampan)
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Exemple scénarios étude sampan
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Exemple de sortie Phase 02 (Sampan)
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Exemple Phase 03 (avec CIC) sur Aspics
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