CRE Details

• CRE Identifier:

  CRE-068

  Title of CRE:

  IPO requirements update

  CRE Class:

  Status

  Implemented and Closed

  CRE Owner

  Anna MacIver

  Sharepoint Link

  CRE Folder (SharePoint)

  
  

  Affected Documents listed in CRE

  Resource Identifier	Version	Document Name	Main Author	Status	More Info	PDF Link
  HRM-00178	2	IFS Pre-Optics Requirements Specification	Hermine Schnetler, UK ATC	Released

  
  

  New/Updated Documents listed in CRE

  Resource Identifier	Version	Document Name	Main Author	Status	More Info	PDF Link
  HRM-00178	3	Not found in the Database

  CRE Notes

• 03/23 : Discussed briefly at CCB on 30/03/23. Need feedback from sub-system teams.
• 11/23 : Feedback from Elvio. Waiting for Miguel too. Changed owner from Hermine->Anna
• 12/23 : Miguel accepted
• 12/23 : Waiting feedback from Stephen
• VFW 02-24: Still waiting for Stephen Todd
• VFW 2024-03-04: FCL chasing Stephen Todd
• FC 2023/03/11: Stephen Todd approved. Moved to accepted for implementation
• VFW 2024-07-24: WCS questions to Fraser on updated distortions requirement changed from 2% to 0.5%. FCl: 2% to 0.5% came from previous IFS SE, reallocation proved unnecessary once it was better understood how the IFU was reporting its distortion numbers.
• VFW 2024-07-24: Phil thinks 0.5% is not necessary and thinks this change should be removed.
• VFW 2024-09-04: Anna - There is this budget of 0.5% in the tech budget requirement. Which is also flown to IFS req spec.
• VFW 2024-09-23: Anna proposed way forward - update IPO requirements, update to tech budget, opne new CRE to flow down pre-calibration requirement to IFS, distribute and update the IFS sub-system specs.
• VFW 2024-09-23: Fraser will draft a clarification and send to James to put into his working draft. This CRE should now be moved to In-progress
• VFW 2024-10-14: Anna to update budget later.
• 2024-10-15 VFW: Calum endorses Anna's plan (as per 12 Sep). Update Tech budgets, WCS analysis and associated requriements later building on James Stevenson's work.
• 2024-10-15 VFW: Calum endorses Anna's plan (as per 12 Sep). Update Tech budgets, WCS analysis and associated requriements later building on James Stevenson's work.
• 2024-10-23 VFW: Anna updated rationale 0.5% is the pre-calibration distortion requirement is as specified in AD2 section 18.3. Meenu updated in DOORS. VFW uploaded updated draft to HRM SP. Requested Anna to send updated draft to IPO Team.
• 2024-11-19 VFW: Anna circulated draft to IPO Team. VFW requested to do PA/QA check.
• 2024-11-20 VFW: Phil completed QA/PA check and this CRE has now been implemented and is closed.