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Attendees

Regrets

Discussion items

 ​

ItemWhoPre-Meeting NotesNotes and  Action Items
Project/Science Updates

Robert Lupton 

  • A restructuring of the Project Office and  SITCOM will be announced in the next few weeks to address the changing focus of the project towards commissioning activities and to backfill positions vacated by Steve K's departure. 
  • Camera cold system : Since early 2020  there have been problems with the cold refrigeration system (vapor compression system). It exhibited instabilities and was unable to maintain the maintain the temperature at the level needed. There was a long saga to address this though 2020 and eventually is was fixed in 2021,  ran for 10 weeks until Dec 2021 when the instabilities returned.  They shut the system down in early 2022, flushed and cleaned the system and restarted the EO testing – but the instabilities returned again. An alternative system has been developed in the meantime (pumped coolant system). Given the continued instabilities with the vapor compression system, the R&D timeline for the pumped coolant system has been stepped up. Risks in both development and operation of the pumps coolant system have been identified. Last week the project took the decision to proceed with focusing  on the alternate, pumped coolant system. The project will conduct an  external review on 28 March 2022 to review the path forward above including technical approach, risk, hazards, cost and schedule.
  • STAR-LITE: proposal for a mission to place absolutely calibrated flux source in orbit to help calibrate our data. Idea been around for a long time. A proposal is going ahead, Some Rubin folks are involved. 
  • Open position for a program officer in DOE/HEP office - responsible for telescope/astrophysics facility operations. Will be a key person for us in Operations so pass it on to anyone you know who might be interested. 
  • PST future planning - RSP talk requested in early April as a PST SC chairs talk (Leanne/Gregory) and an update on the status of difference imaging (Eric)  in August 
  • LSST@Europe starting to think about a hybrid meeting later this year, October timeframe. 
  • RHL says this is a good move, much simpler system.
  • Camera will have to be modified before shipping.
  • Impact on comcam schedule? Complicated, second order effects. Finite number of people, so might be impacted by available effort. Comcam might be on sky longer, unless that's eaten up by other schedule issues.
  • Subaru coolant was glycol, more corrosive to Al than the Dynalene planned for Rubin. Subaru coolant leak was room temperature, not -50ºC planned for Rubin.
  • RHL: calibration satellite would be lovey but not critical. Proposal, not gone in yet.
  • Is there a date for the RSP SciChairs-PST meeting? Not official yet.
    • Melissa: User's committee might benefit from being able to attend.
    • Steve: There will be another PST-SciChairs meeting for the chairs to present what they're up to, might be good for Users Committee.
Follow up on DPDD column revision 

Robert Lupton 

Leanne Guy

Following up on a discussion at 2018-11-05 DM SST F2F Agenda and Meeting notes, (DPDD Table Review) to review all columns in the Source & DIASource table and decide whether to remove or move to a different table. 

Proposed path forward will be presented  before moving to LCR

  • RHL and Leanne have reviewed this recently.
  • Wording of the diaSource detection time is ambiguous, can be tightened up.
  • Camera hasn't developed shutter timing to focal plane position model (Tony told Robert this), Steve will look in to it.
    • Steve confirms the Camera still plans to deliver this, informed by measurements that can be taken once the Camera is integrated at SLAC. Now would be a good time to confirm the details of what is needed: Andy Rasmussen will write up the plan, and DM should then confirm the plan matches the need. ETA on the plan would be early May.
    • Could measure with asteroids.
      • Steve Ritz Work with DM and Camera to develop plans for delivering a shutter position-vs-time model  
  • GPDF: In addition to this, we need some science-based proposal for what the Visit and CcdVisit tables should contain.
    • Need to write down the science drivers.
    • DP0.2 is producing outputs for these tables. Unclear if felis files exist.


Status of Compressed PVI updates

Gregory Dubois-Felsmann 

Where are we at with Requirements on compressed PVIs? -  See discussions and task at dm-sst meeting notes 2021-01-11.  I don’t thinks this was completed?
  • Big picture question on compression is already settled, just need to flow that down to requirements on the systems that need to be built to make it happen.
  • Hope to have this written by next meeting.
RSP Test Plans

Gregory Dubois-Felsmann 


  • Have a milestone associated with readiness for DP0.2.
  • When is CET planning on for opening up DP0.2 to delegates? Not really CET's plan, but released on June 30th. Milestone is marked as September in P6, some sort of error.
  • Would like to do a formal test before opening to delegates. There was a placeholder test plan in Jira, LVVC-167. GPDF started to fill this out. Main focus of 0.2 is image services, so pulled in the image-related test cases in Jira, and none of the test cases had test scripts written for them.
  • 1:1 Requirement-to-test case-to-test script mapping is a little unrealistic, more natural to write a single test case that satisfies multiple requirements. Might have to discard the 1:1 test cases.
    • Confer with Austin and Jeff.
  • CET is looking to hire someone from SLAC to do RSP user acceptance testing.
    • More on the validation side.
AOB

Colin Slater 

Next meeting is: 2022-03-28




List of SST tasks (Confluence)

DescriptionDue dateAssigneeTask appears on
  • Robert Lupton Clarify the meaning of time in the object table. 1 sentence description in sdm_schemas, can link to a short DMTN.  Update 2022-02-09: Meeting to resolve this on 2022-02-21  
28 Feb 2022Robert Lupton2018-11-05 DM SST F2F Agenda and Meeting notes
  • Gregory Dubois-Felsmann check if SDM standardization is adequately represented in project documents, and whether DMTN-067 should be required.
31 Mar 2022Gregory Dubois-Felsmann2022-02-14 DM-SST Virtual F2F Agenda and Meeting notes
28 Feb 2023Leanne Guy2023-01-23 DM-SST Agenda and Meeting Notes
  • Leanne Guy talk to Steve R about presenting plans for the ShearObject table to PST and SciCollab chairs   
20 Mar 2023Leanne Guy2023-02-27 DM-SST Agenda and Meeting Notes
31 Mar 2023Jim Bosch2023-02-27 DM-SST Agenda and Meeting Notes
  • Leanne Guy  talk to Gregory Dubois-Felsmann to review the original intent of the AFS-related Portal requirements before deciding on a course of action  
29 May 2023Leanne Guy2023-05-01 DM-SST Focus Meeting - Brokers in Commissioning
  • Leanne Guy Prepare to consult the PST on the question of providing compressed PVIs for AP outputs, to cover the period before the data become available in a DR.  
02 Jun 2023Leanne Guy2023-03-27 DM-SST Agenda and Meeting Notes
  • Jim Bosch Incorporate 30-60 day period for raws on disk into the strawman proposal and present to KT  
26 Jun 2023Jim Bosch2023-05-08 DM-SST Agenda and Meeting Notes
  • Parker Fagrelius Patrick Ingraham  how long will it take to do a scan as described? No need to scan the whole WL range but will require additional points outside nominal lambda range.  
30 Jun 2023Parker Fagrelius2023-03-27 DM-SST Agenda and Meeting Notes
31 Jul 2023Colin Slater2023-07-10 DM-SST Agenda and Meeting Notes
  • Eli Rykoff , Leanne Guy  Develop a proposal for what calibration processing, hardware, data we actually need and what will be needed for DR1. This has implications for the ORR and for prioritisation of work in commissioning  
31 Jul 2023Eli Rykoff2023-01-30 DM-SST Agenda and Meeting Notes
  • Yusra AlSayyad will look to see if there is any effort to help on option 1  
28 Aug 2023Yusra AlSayyad2023-08-14 DM-SST Agenda and Meeting Notes
  • Jim Bosch  Provide a physical example of that a  up on cell table would look like fo the Colin Slater / DAX team to review  
31 Aug 2023Jim Bosch2023-02-27 DM-SST Agenda and Meeting Notes
30 Nov 2023Leanne Guy2023-10-23 DM-SST vF2F Agenda and Meeting Notes
  •  "What is the pathway to defining the data products that are required to meet DMS-REQ-0266" Jeffrey Carlin   
30 Nov 2023Jeffrey Carlin2023-10-23 DM-SST vF2F Agenda and Meeting Notes
30 Nov 2023Gregory Dubois-Felsmann2023-10-23 DM-SST vF2F Agenda and Meeting Notes
  • Jeffrey Carlin follow up with KT on DMS-REQ-0176 and DMS-REQ-0315 to update/disaggregate this for latest base/summit infrastructure split.  
30 Nov 2023Jeffrey Carlin2023-10-23 DM-SST vF2F Agenda and Meeting Notes
  • Jim Bosch Follow up on the possibility of investigating further the ability to process 2 collections in parallel.   
31 Jan 2024Jim Bosch2023-12-04 DM-SST Agenda and Meeting Notes
31 Jan 2024Jeffrey Carlin2023-12-04 DM-SST Agenda and Meeting Notes
Gregory Dubois-Felsmann2023-10-23 DM-SST vF2F Agenda and Meeting Notes


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