7th International LISA Symposium – Barcelona, Spain / June 16-20, 2008 Albert Einstein Institute Hannover, Germany LISA Group AEI Hannover, Germany LTP Data Analysis, 17/06/2008 Albert Einstein Institute www.lisa.aei-hannover.de Max Planck Institute for Gravitational Physics Hannover The First LTP Mock Data Challenge Anneke Monsky for the LTP Team
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7th International LISA Symposium – Barcelona, Spain / June 16-20, 2008 Albert Einstein Institute Hannover, Germany
LISA Group AEI Hannover, Germany LTP Data Analysis, 17/06/2008
Albert Einstein Institute
www.lisa.aei-hannover.de Max Planck Institute for Gravitational Physics
Hannover
The First LTP Mock Data Challenge
Anneke Monsky for the LTP Team
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Outline
• Organisation
• Model of LTP Dynamics
• Prediction of simulated IFO Data
• Prediction of TM acceleration
• Calibration of IFO Data to TM acceleration
• Summary and Outlook
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Two teams for the LTP mock data challenge:
3
Data GenerationTeam
Organisation
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Two teams for the LTP mock data challenge:
3
Data GenerationTeam
Organisation
Model LTP Dynamics
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Two teams for the LTP mock data challenge:
3
IFOMock Data
Data GenerationTeam
Organisation
Model LTP Dynamics
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Two teams for the LTP mock data challenge:
3
Data AnalysisTeam
IFOMock Data
Data GenerationTeam
Organisation
Model LTP Dynamics
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Two teams for the LTP mock data challenge:
3
Data AnalysisTeam
IFOMock Data
Data GenerationTeam
Organisation
Model LTP Dynamics
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Two teams for the LTP mock data challenge:
3
Data AnalysisTeam
IFOMock Data
Data GenerationTeam
Analysis Result(TM acceleration)
Organisation
Model LTP Dynamics
UTN (Trento) - simulated
IFO output data using
Mathematica
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
IFO/DMU
x
A
A 1
A2
x2
k1x1
k3x2
AN AT
Csus
CdfTM 1
TM 2
r =
0.3
m
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
r =
0.3
m
x
x1
x2
IFO/DMU
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
• TM1:
r =
0.3
m
x
x1
x2
IFO/DMU
TM 1
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
• TM1:– drag free
– S/C follows TM1
r =
0.3
m
x
x1
x2
IFO/DMU
TM 1
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
• TM1:– drag free
– S/C follows TM1
– drag free control loop
r =
0.3
m
x
x1
x2
IFO/DMU
CdfTM 1
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
• TM1:– drag free
– S/C follows TM1
– drag free control loop
• TM2: r =
0.3
m
x
x1
x2
IFO/DMU
CdfTM 1
TM 2
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
• TM1:– drag free
– S/C follows TM1
– drag free control loop
• TM2:– position electrostatically
relative to TM1
r =
0.3
m
x
x1
x2
IFO/DMU
CdfTM 1
TM 2
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (operation mode)
• TM1:– drag free
– S/C follows TM1
– drag free control loop
• TM2:– position electrostatically
relative to TM1– electrostatic control loop
r =
0.3
m
x
x1
x2
IFO/DMU
Csus
CdfTM 1
TM 2
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (Input force noises)
TM 1
r =
0.3
m
IFO/DMU
TM 2
Cdf
Csus
x
A
x1
x2
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (Input force noises)
• AT - thruster forceTM 1
r =
0.3
m
IFO/DMU
TM 2
Cdf
Csus
x
A
x1
x2
AT
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (Input force noises)
• AT - thruster force
• AN - additional force noisesTM 1
r =
0.3
m
IFO/DMU
TM 2
Cdf
Csus
x
A
x1
x2
AN AT
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (Input force noises)
• AT - thruster force
• AN - additional force noises
• - k1 x1 and -k3 x2 coupling between TM and S/C
TM 1
r =
0.3
m
IFO/DMU
TM 2
Cdf
Csus
x
A
x1
x2
AN AT
k1x1
k3x2
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Dynamical Model (Input force noises)
• AT - thruster force
• AN - additional force noises
• - k1 x1 and -k3 x2 coupling between TM and S/C
• A1, A2 - force noises on TM1 and TM2
TM 1
r =
0.3
m
IFO/DMU
TM 2
Cdf
Csus
x
A
x1
x2
AN AT
A1
A2
k1x1
k3x2
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Definitions
• Dynamics– stiffness
• TM coordinates
• Force noises
• IFO output data
D =[
s2 + ω21 0
ω2∆ s2 + ω2
3
]=
[Sω1 0ω2
∆ Sω3
]
!q =[
x1
x∆
]
!o =[
o1
o∆
]
!gn =[
AN −A1
A2 −A1
]
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Equations of motion
• Result of Euqations of motion in Laplace domain:
• Relating IFO data to TM coordinates:
• Combining equations:
!o = S!q + !on
[DS−1 + C]!o = D!on S−1 + !gn
a_calibrated→ a_predicted→
D!q = C!o + !gn
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Prediction of simulated Interferometer output data
The First LTP Mock Data Challenge
Albert Einstein Institute Hannover, Germanyhttp://www.lisa.aei-hannover.de/
LISA Group AEI Hannover, Germany Anneke Monsky, 17/06/2008
Prediction of simulated X1 and X12 Interferometer Data