Integration  Progression  Criteria  Workshop  3/28/18

Simon  CraigSystems  Engineering

What’s  it  all  about?

• This  is  a  Workshop!!!– No  Pass/Fail– Interactive  discussion  encouraged!!– Follow-­‐up  actions  identified

• SIMs  1-­‐7a  (First  Light  Initiative)– Subsequent  Workshops  for  SIM  7b  onwards

• What  is  an  Integration  Progression  Criteria  (IPCs)– Defines  an  acceptable  level  of  performance  at  a  particular  point  in  the  IT&C  activities.

Integration  Progression  Criteria  Workshop:  3/28/18 2

Systems  Integration  Modules  

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• SIMs  are  not  quite  the  same  as  the  “phases”  of  DKIST  SOWs

• SIMs  are  not  strictly  sequential

• Developed  by  engineers  and  a  scientists  

• Starting  point  is  generating  flowcharts,  working  with  subsystem  experts

• At  the  end  of  any  given  SIM,  we  may  not  have  achieved  any  end  science  goals.

Integration  Progression  Criteria  Workshop:  3/28/18

SIM  BASIS

• The  Systems  Integration  Modules  are  the  basis  for  organizing  the  SOW

• Each  of  the  15  SIMs  has  a  section  in  the  SOW

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SIM  1:  Telescope   Pointing  MapSIM  2:  M1  IntegrationSIM  3:  M1  +  M2  IntegrationSIM  4:  M1  to  M6  IntegrationSIM  5:  Coudé  Optics  Plus  FIDO  IntegrationSIM  6a:  VBI  IntegrationSIM  6b:  WFC  IntegrationSIM  7:  First  Light  Initiative,  VBI+WFCSIM  8:  GOS  IntegrationSIM  9a:  Cryo-­‐NIRSP  IntegrationSIM  9b:  DL-­‐NIRSP  IntegrationSIM  9c:  ViSP IntegrationSIM  9d:  VTF  IntegrationSIM  10:  Polarization  CalibrationSIM  11:Multi  Instrument  Verification

Integration  Progression  Criteria  Workshop:  3/28/18

IPC  Example:  Pointing  Map  

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1. SIM  1:  Obtain  a  rough  pointing  map  with  the  Target  acquisition  telescope  (no  M1  yet)

2. SIM  2:  Obtain  an  improved  pointing  map  after  M1  is  installed  and  forming  an  image  at  prime  focus

3. SIM  3:  Obtain  an  improved  pointing  map  in  the  Gregorian  focal  plane

4. SIM  5:  Obtain  an  improved  pointing  map  in  the  coudé  IT&C  wavefront  sensor's  context  viewer

5. SIM  6b:  Obtain  an  improved  pointing  map  with  the  WFCS  Context  Imager

Integration  Progression  Criteria  Workshop:  3/28/18

IPC  Example:  Pointing  Map  

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SIM  3:  7.2.3.  Nighttime  pointing  map  for  Gregorian  focal  plane  obtained.A  nighttime  pointing  map  shall  be  developed  for  the  Gregorian  focal  plane  utilizing  the  Gregorian  focus  wavefront  sensor’s  context  viewer.

Integration  Progression  Criteria:  The  pointing  map  shall  allow  for  the  acquisition  of  stars  so  that  they  fall  within  the  30  arcsec  field  of  view  of  the  coudé  IT&C  wavefront  sensor’s  context  imager.

Integration  Progression  Criteria  Workshop:  3/28/18

IPC  Development  Example:  First  Light  Initiative  (FLI,  SIM  7)

7Statement  of  Work  -­‐ NSF  PEP/CS  Review  Sep  19-­‐21,  2017

• FLI  was  loosely  defined  as  obtaining  the  first  diffraction  limited  images,  but  what  does  that  mean  in  detail?

• Integration  Progression  Criteria  must  be  detailed,  measureable,   and  unambiguous.    

• For  FLI,  the  progression  criteria  negotiated  between  SysEngand  science.

SIM  1  Telescope  Pointing  Map

SIM  1  Definition

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SIM  1:  Pointing  Map

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SIM  1:  Target  Acquisition  Telescope

• Note  1.2.3  is  not  required  for  early  SIM  2  activities.    Thermal  testing  only.

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SIM  2  M1  Integration

SIM2  Definition

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M1  Coating  IPC

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Should  be  2.2.1

M1  Coating  IPC

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Changed  following  discussion  with  TR.  Document  need  updating

M1  Assy;  M1  Aperture  plate

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GIS

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Prime  Focus  Wavefront  Error  IPC

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Prime  Focus  Pointing  Model

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SIM  3:  M1  and  M2  Alignment

M1+M2

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M1  and  M2  Optically  aligned,  Wavefront  error

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M1  &  M2  Optically  aligned  pointing  map

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TEOA  GIS  

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M1  and  M2  Thermal  Tuning

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SIM  4,  M3-­‐6  Install

M3-­‐6  install

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M3-­‐6  Thermal  Testing  and  Tuning

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SIM-­‐5  M8-­‐9(FIDO  not  covered)

M8-­‐9  Installed

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M7-­‐9  aligned

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Coudé pointing  Map,  M7-­‐9  Thermal  Tuning

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SIM  6a:  VBI

Confirm  continuing  compliance

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VBI  Install

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VBI  Alignment

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VBI  Functional  testing

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VBI  Performance  Testing

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SIM  6b:  WFC

M5  Install

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Install

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Context  Viewer  Install

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LOWFS  Install

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HOWFS  Install

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WFC  SystemTesting

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SIM  7a  First  Light  Initiative

FLI  IPC

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Thank  You!!!!