NGAO Performance Flowdown Worksheets

Version Controlled Flowdown Summary

• NGAO_PD_Phase_Flowdown_Budgets_v0_96_2003_Format.xls: For use in updating Contour functional requirements database
• NGAO_PD_Phase_Flowdown_Budgets_2003_Format.xls v0.95: For discussion at the 090902 Team Meeting

Remaining Tasks for Version 1 release (status as of 9/2/09)

• Dekany to update WFE/EE budget tool according to 'Action Items' column of the Flowdown Summary, Summary worksheet
• Dekany to confirm consistency with 'Rainbow Chart'
• Various to update Contour database to reflect requirements consistent with Version 1 reconciled flowdowns
  • Everyone to check cognizant engineer name atop each sheet for the sheets they are to interpret as updates to the Contour database functional requirements
  • Some flowdown sheets may generate new functional requirements (e.g. uptime req's?)

Remaining Flowdown Tasks for Version 2 release scheduled Feb 2010 (status as of 9/2/09)

• Reni K. to model non-correctable aberrations in the AO system and post results
• Neyman (TBC) to work on initial System Uptime MTBF flowdown
• Gavel to update HO and TT bandwidth latency model to reflect servo design choices
• Bouchez to provide perform flowdown from tip-tilt star hand-off sequence during long non-sidereal target observations
• Lu & Dekany to continue refinement of crowded and sparse field relative astrometry budgets
• Troy to implement TWFS error budget and perform TWFS sky coverage calculations

Component Flowdowns (now obsoleted - refer only the Flowdown Summary (above)