Spécification Technique de Besoins de la Mission Euclid...Euclid France Euclid Exemple: Mesure de...
Transcript of Spécification Technique de Besoins de la Mission Euclid...Euclid France Euclid Exemple: Mesure de...
Euclid France
Euclid Consortium
Spécification Technique de Besoins
de la
Mission Euclid
Jérôme Amiaux
EC Mission System CEA / SAp
Euclid France
Euclid Consortium Euclid: en simplifié
Aller dans l’Espace Observer tout le ciel Extra Galactique
Comprendre l’accélération de
l’expansion de l’univers
Euclid France
Euclid Consortium Complexité de l’implémentation
Space Segment Ground Segment
Survey
Science Level L0 – L1 - L2
Mission Level L3
Euclid France
Euclid Consortium Complexité de l’implémentation
Space Segment Ground Segment
Survey
Science Level L0 – L1 - L2
Mission Level L3
Element Level L4
NISP VIS
Euclid France
Euclid Consortium Complexité de l’implémentation
Space Segment Ground Segment
Survey
Science Level L0 – L1 - L2
Mission Level L3
Element Level L4
Assembly Level
Component Level
NISP VIS
Euclid France
Euclid Consortium Spécifications Scientifiques
Euclid Primary Science Objectives
Level 1 Weak Lensing
Level 2 Weak Lensing Level 2 Galaxy Clustering Level 2 Survey
Level 1 Galaxy Clustering
Survey Size Galaxy Density for WL / GC Redshift distribution WL / GC
N<20
N<30
Visible Depth
Visible PSF Characteristics
Visible PSF Knowledge
NIR (Y J H) depth
NIR Relative Photometry
Sensitivity (emission line)
Completness
Redshift Accuracy
Wide Survey Coverage
Calibration Fields Coverage
Deep Survey Coverage
Science Implementation Levels: These are the levels where specific Scientific probes are selected to reach a Science Goal. For Euclid, this is the selection of Weak Lensing and Baryonic Acoustic Oscilations as primary probes driving the mission.
Euclid France
Euclid Consortium Spécifications Mission
Level 2 Weak Lensing
Level 2 Galaxy Clustering
Level 2 Survey
Visible Depth
Visible PSF Characteristics
Visible PSF Knowledge
NIR (Y J H) depth
NIR Relative Photometry
Wide Survey Coverage
Calibration Fields Coverage
Sensitivity (emission line)
Completness
Redshift Accuracy
Deep Survey Coverage
Mission Implementation Levels: These are the levels where specific Mission implementation options are selected at Space and Ground Segment Level For Euclid, this is the selection of specific Spacecraft, Instrument, Data Processing and Sky Survey options.
VIS Throughput
VIS Integration Time
Size
Ellipticity
Wings
Wavelength Variation
Geometrical Distorsion
PSF Size Calibration
PSF Ellipticity Calibration
PSF Linearity Calibration
Distorsion Calibration
CTI Calibration
NISP P Throughput
NISP P Integration Time
Detector Intra pixel
Photo Calibration
NISP S Throughput
NISP S Integration Time
NIR Spectro PSF
NIR Photo PSF
Survey Area
Survey Map
Dithering Map
L3
Reaching ~1000 requirements when arriving a level driving mission
implementation
Euclid France
Euclid Consortium Spécifications à l’AO
Sci RD L0-L1-L2
Telescope Concept
Mission Constraint
MRD L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
Consortium Industry
Requirement
Rationale
Euclid France
Euclid Consortium Spécifications actuelles
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Requirement
Rationale
Euclid France
Euclid Consortium Spécifications actuelles
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Euclid France
Euclid Consortium Spécifications actuelles
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Euclid France
Euclid Consortium Spécifications actuelles
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Euclid France
Euclid Consortium Spécifications actuelles
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Euclid France
Euclid Consortium Spécifications actuelles
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Euclid France
Euclid Consortium Spécificité d’Euclid
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
Requirement
Rationale
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Importance dès les phases amonts de la prise en compte: • Du traitement de Données • Des Calibrations • Du Survey Pour démontrer la tenue des besoins science et la faisabilité de l’implémentation
Euclid France
Euclid Consortium Exemple: Survey
First Year Period specific calibrations Sequence Type of Sequence Duration Cadence SLEW Slew to a galactic star field
Every month CALIB Take exposures with different times [V-CAL-F-005] 1 day SLEW Slew back on WS SLEW Slew to a Planetary Nebula Twice (one after
3mos, the other after 6mos)
CALIB Take exposures with different times and orientations [NS-CAL-F-003] 1 day SLEW Slew back on WS SLEW Slew to a White Dwarf Twice (one after
3mos, the other after 6mos)
CALIB Take exposures with different times and positions [NS-CAL-F-006] 1 day SLEW Slew back on WS
SLEW Slew to an open cluster [NS-CAL-F-003] Once per year CALIB Take exposures with different times and positions 1 day
SLEW Slew back on WS Total Duration 17 days
For Reference Survey will be assumed in the Galactic Plane
For Reference Survey will be assumed in the Galactic Plane
For Reference Survey will be assumed in the NEP
For Reference Survey will be assumed in the Galactic Plane
Euclid France
Euclid Consortium Exemple: Survey
HST field 1 HST field 2 HST field 3
NISP S Cal
VIS cal
Deep North
Deep South Year 2
Euclid France
Euclid Consortium Exemple: Survey
Year 6
Euclid France
Euclid Consortium Exemple: Survey
Year 6
Euclid France
Euclid Consortium Survey
Sci RD L0-L1-L2
SPBD L2 – L3
Calibration Concept
Operation Concept
Telescope Concept
Mission Constraint
MRD L3
PERD L3
GDPRD L3
CCD L3
SCS L3
Requirement
Rationale
VIS L4
NISP L4
VIS EID-B
NISP EID-B
VIS EID-A
OU L4
Consortium Industry
Euclid France
Euclid Consortium Exemple: Mesure de Shear
m<2x10-3 σsys²<1x10-7
R-WL.1-4: Measurement control such to limit multiplicative and
additive bias on shear
Telescope and Instrument Stability
Telescope and Instrument Properties
In former AO Break Down Structure, it was not possible to link the lower level requirements directly to higher level Scientific needs
Verification was not feasible.
Requirements were stated as not feasible and considered as major Risk to the mission.
Euclid France
Euclid Consortium Exemple: Mesure de Shear
m<2x10-3 σsys²<1x10-7
R-WL.1-4: Measurement control such to limit multiplicative and
additive bias on shear
Telescope and Instrument Stability
Telescope and Instrument Properties
In former Break Down Structure, it was not possible to link the lower level requirements directly to higher level Scientific needs
Verification was not feasible.
Requirements were stated as not feasible and considered as major Risk to the mission.
Euclid France
Euclid Consortium Exemple: Mesure de Shear
m<2x10-3 σsys²<1x10-7
R-WL.1-4: Measurement control such to limit multiplicative and
additive bias on shear
Telescope and Instrument Stability
PSF properties PSF knowledge method bias method knowledge
Telescope and Instrument Properties
Data Processing Requirements
Calibration Requirements
Operation Requirements
Current Break Down Structure allows us to verify that proposed implementation is compliant with High Level Science Requirements
Euclid France
Euclid Consortium Exemple: Mesure de Shear
m<2x10-3 σsys²<1x10-7
R-WL.1-4: Measurement control such to limit multiplicative and
additive bias on shear
Telescope and Instrument Stability
PSF properties PSF knowledge method bias method knowledge
Telescope and Instrument Properties
Data Processing Requirements
Calibration Requirements
Operation Requirements
Current Break Down Structure allows us to verify that proposed implementation is compliant with High Level Science Requirements
Euclid France
Euclid Consortium Exemple: Mesure de Shear
m<2x10-3 σsys²<1x10-7
R-WL.1-4: Measurement control such to limit multiplicative and
additive bias on shear
Telescope and Instrument Stability
PSF properties PSF knowledge method bias method knowledge
Telescope and Instrument Properties
Data Processing Requirements
Calibration Requirements
Operation Requirements
Current Break Down Structure allows us to verify that proposed implementation is compliant with High Level Science Requirements
Euclid France
Euclid Consortium Euclid: un Projet Scientifique
• Science: • Les besoins scientifiques justifient l’intérêt de la mission
• Project: • L’expression claires des besoins justifient la faisabilité d’une mission
Le Consortium intervient à 2 niveaux sur Euclid: • Au niveau Scientifique • Au niveau instrument Importance dans le consortium de la collaboration étroite au niveau mission entre:
Instrument / Ground Scientist:
Garant des besoins Sciences
Instrument / Ground system:
Garant de l’implémentation
Mission System: Garant de la bonne propagation des besoins Science au niveau
Mission
Requirement ESA ECSS Standard a. Traceable b. Unique c. Single d. Verifiable e. Unambiguous f. Necessary
ESA