PD Phase Functional Requirements

PD Requirements Review Phase II - March 2010


The NGAO project will finalize the System and Functional requirements over the course of the next week, starting Monday March 1, 2010.

The Systems Engineering team, the three NGAO institutional leads, and those leading the preliminary design of each major NGAO system are requested to meet each afternoon for intensive editing and review of specific sections of the requirements. The pace will be fast and subsystem leads will be expected to undertake a few subsequent hours of 'homework' in resolving TBD's/TBC's not rapidly addressable. Completion of this homework will be requested within 48 hours of each review session.

The goal of these working meetings is a complete set of NGAO requirements that can be released during the week of March 8. At the same time, we will place key interface, error budget and related flowdown spreadsheets under formal version control:

  • System Configuration
    • KAON 550 NGAO System Configurations Spreadsheet Updated 2/19/10 - P. Wizinowich
    • KAON 682 NGAO Master Device List v1.1 - C. Neyman (E. Wetherell revisions)
    • KAON 705 AO-Level Control Loops Updated 2/19/10 - P. Wizinowich
    • KAON 636 OOCD - P. Wizinowich (J. Lyke revisions)
  • Peformance Budgets
    • Wavefront Error Budget Tool v2.0 - R. Dekany
    • High-Contrast Error Budget Tool v2.0 - R. Dekany
    • Performance Flowdown Requirements Spreadsheet v2.0 - R. Dekany
      • Includes transmission, background, non-correctable WFE, NCP tip-tilt, observing efficiency (acquisition, dither, instrument switch), and system uptime budgets
    • KAON 716 NGAO Preliminary Design Wavefront Error Budgets v1.0 - R. Dekany
  • Other budgets
    • KAON 709 Power Consumption and Cabling - C. Neyman (E. Wetherell revisions)
    • Heat dissipation budget
    • Mass budget
  • Interface Control
    • Pupil Mapping to DM's (Keck Drawing 1410-CM0010 Rev1) - P. Wizinowich
    • ICD's (including DAVINCI ICD v1.2)
  • To be placed into configuration control
    • A definitive version of the optical design file (.ZMX format) - P. Wizinowich (R. Kupke revisions)
    • SolidWorks Model v??

The Systems Engineering team will prepare subsets of the requirement database for discussion during each session. After these issues are addressed, there may be time for subsystem leads to raise additional issues / questions / or suggestions.

By March 12, changes to the database or controlled budget documents will follow the version control guidelines given in KAON 638, “Keck NGAO Functional Requirements Approval and Change Processes”, by Erik Johansson.

Dial-in #: (877) 280-4645 ID: 540030

Because we will be referencing the Contour database extensively, we request that individuals arrange to meet in one location having both phone and on-line computer access to Contour (only these accounts are enabled for the week Keck: Neyman, Wizinowich, COO: Dekany, UCSC: Gavel).

(Note, discussion of the Interface Requirements will be done with the associated subsystem)

Date Session Time Sections Participants
Monday, March 1 Noon - 2p PST System Requirements Dekany, Gavel, McGrath, Neyman, Wizinowich
2p - 4p PST AO System FR thru AO Relay FR-2609 Dekany, Gavel, Kupke, McGrath, Neyman, Wizinowich
Tuesday, March 2 Noon - 2p PST LGS WFS FR-2884 Dekany, Neyman, Wizinowich, Velur
2p - 4p PST NGS WFS FR-2828
Wednesday, March 3 Noon - 2p PST LGSF FR-781 Dekany, Neyman, Chin, Wizinowich
2p - 4p PST Remaining AO System FR's (excluding LOWFS) Dekany, Gavel, Neyman, Wizinowich, Tsubota
Thursday, March 4 Noon - 2p PST LOWFS FR-2816 Dekany, Gavel, Neyman, Roberts, Wallace, Wizinowich
2p - 4p PST Controls FR-3269 Dekany, Gavel, Max, Neyman, Roberts, Wizinowich, Tsubota
Friday, March 5 Noon - 2p PST Science Instruments FR-3144 Adkins, Dekany, Gavel, Max, Neyman, Roberts, Wizinowich
2p - 4p PST Clean-up by Systems Eng Team Dekany, Gavel, Roberts, Neyman, Wizinowich
Tuesday, March 8 10:30a - 1p PST Science Ops Tools FR-3110 and Data Server FR-3121 Dekany, Gavel, Max, Neyman, Wizinowich, Tsubota
1p - 2:30 PST General Cleanup, Homework Review Dekany, Neyman, Wizinowich

Requirements for Review Phase I, to be completed 3/31/09 - Superceded

-- ErikJohansson - 12 March 2009

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf 0-General.pdf r1 manage 63.1 K 2009-03-12 - 21:54 ErikJohansson General NGAO Requirements
PDFpdf 1.2-Opto-Mech-General.pdf r1 manage 49.9 K 2009-03-12 - 23:16 ErikJohansson AO System General Opto-Mechanical Requirements
PDFpdf 1.2.3-Rotator.pdf r1 manage 46.5 K 2009-03-12 - 21:55 ErikJohansson Rotator Requirements
PDFpdf 1.2.4-Wide-Field-Relay.pdf r1 manage 60.1 K 2009-03-12 - 21:55 ErikJohansson Wide Field Relay Requirements
PDFpdf 1.2.5-Narrow-Field-Relay.pdf r1 manage 58.1 K 2009-03-12 - 21:57 ErikJohansson Narrow Field Relay Requirements
PDFpdf 1.2.7-LGS-WFS-Assembly.pdf r1 manage 78.2 K 2009-03-12 - 21:57 ErikJohansson LGS WFS Assembly Requirements
PDFpdf 2.1-Laser-Enclosure.pdf r1 manage 62.4 K 2009-03-12 - 23:19 ErikJohansson Laser Enclosure Requirements
PDFpdf 2.4.4-Laser-Launch-Facility.pdf r1 manage 58.0 K 2009-03-12 - 23:19 ErikJohansson Laser Launch Facility Requirements
PDFpdf 2.5-Laser-Controls.pdf r1 manage 45.2 K 2009-03-12 - 23:20 ErikJohansson Laser System Controls Requirements
PDFpdf 2.6-Laser-Safety-System.pdf r1 manage 43.5 K 2009-03-12 - 23:21 ErikJohansson Laser Safety System Requirements
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Topic revision: r24 - 2010-03-17 - RichardDekany
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