• XS: Look at drawing of Nasmyth table and support structure, advise JSY of follow-up queries

This meeting took place on Friday 21 May at 14:00. Attendees: JSY, MF, ADR, CAH, DFB, EBS, XS, DMAW

• ADR & CAH: Use tolerancing results to assign image quality and stability budgets by component

• Camera Thermal Control Issues (MF)

Task Assignments

New tasks are in red.

Completed Tasks

• ADR & CAH: Layout and tolerancing of transmissive optical system
• ADR & CAH: Use tolerancing results to assign image quality and stability budgets by component
• XS: Initial studies of achievable stability
  • Replaced by new task below
• MF: Thermal analysis of camera in box
  • Follow-on task below

High Priority Tasks

• MF: Determine minimum size of camera enclosure
• MF & ADR: Use camera enclosure size to refine reflective and transmissive layouts
• ADR: Final layout/stability budgets for refined layouts: one reflective and one transmissive
• XS: Conceptual design of unadjustable dichroic mount
• XS: Model effect of temperature gradient on stability of dichroic in above mount

• DFB: Write down initial latency and frame rate requirements with brief justification
  • Calculate for 40Hz bandwidth requirement as well as 50Hz goal
• JSY: Define software components and inter-component dataflows (hardware-independent)
• JSY: Ask Chris Mayer for field rotation rate
  • Sent query, no reply yet

Medium Priority Tasks

• MF: Thermal modelling of camera enclosure to refine derived requirements
• MF: Look for missing derived requirements using N^2 diagram
• TBA: Calculate seasonal focus change

• EBS: Look for 1U or 2U computers with 2 PCI slots drawing < 150W

Low Priority Tasks

• ADR: Dialogue with OAP manufacturer re referencing to optic axis of finished component

Next Meetings

TBD

• Image Quality and Stability Criteria - Transmissive Systems (ADR)
  • Includes initial top-down error budget

• ADR & CAH: Layout and tolerancing of transmissive optical system

• Layout/tolerancing of transmissive optical system, top-down error budget (ADR)
• Camera Thermal Control Issues (MF)

Technical Meeting #4: Optomechnical and thermal conceptual design, derived requirements

• ADR: Top-down image quality and stability budgets, by component

• ADR & CAH: Layout and tolerancing of lens-based optical system

Technical Meeting #4: Optomechnical design and thermal requirements

This meeting will take place on Friday 21 May at 14:00.

Agenda

• Discussion of results from the following high priority tasks
  • XS: Initial studies of achievable stability
  • MF: Thermal analysis of camera in box
• Next steps
  • Tasks
  • Next meeting(s)

Discussion Slides

Please attach as PDF to this page.