(This page should ultimately be replaced by a JIRA query against the envisioned future JIRA reimplementation of the change request database, using labels to represent "DM is interested in this". At the moment it is manually maintained.)
Items with a RED state value are ones being considered in the current CCB cycle.
| LCR | Title | State | Documents Affected | Summary and comments | Related Issues | CCB meeting for decision |
|---|---|---|---|---|---|---|
| (TBD) | LSE-209 Software Component Document Reformat and Reqs Refresh | PROPOSED | LSE-209, likely LSE-72 | This is mostly a cleanup pass on a key OCS middleware definition document. The DM-to-OCS interface depends on its contents, so it's likely that some consequential changes to LSE-72 will be needed. | ||
| (TBD) | Withdraw LSE-77, "Infrastructure Interfaces Between Data Management and the Base Facility" | PROPOSED | LSE-77, possibly LSE-239 | In 2015, the project shifted from the then-existing DM-to-T&S ICD LSE-77 to a new "Base Data Center Requirements" document, LSE-239, to capture the needs of DM for data center space at the Base. LSE-77 became effectively a dead letter in the process. This change request is intended to just clean that up. | ||
| LCR-974 | Update Network Requirements in LSE-61 | LCR ASSIGNED | LSE-61 | One new requirements, modifications to 3 others. | ||
| LCR-964 | Summit Computer Room Requirements Document | LCR ASSIGNED | LSE-299 (new) | Consolidates all planned compute hardware needed on the Summit (except what is actually in the domes). | ||
| LCR-963 | Summit - Base ITC Design Document | LCR ASSIGNED | Product of Jeff Kantor's Summit-Base Tiger Team Touches on almost all DM's interfaces with the other systems. | |||
| LCR-962 | Flowdown LSE-163 (DPDD) to LSE-61 (DMSR) | LCR ASSIGNED | LSE-163, LSE-61 | Includes a handful of unrelated requirements changes/additions. Some text updates to DPDD. | ||
| LCR-943 | Minor updates to LSE-63 | FULLY IMPLEMENTED | LSE-63 (Data Quality Assurance Plan) | LSE-63 has not been updated since 2011. This update includes some minor modernizations based on current best practice and removes mention that we are currently in R&D phase. | ||
| LCR-924 | Duplicate LSR Data Performance Metrics in OSS for DM Flow Down | LCR ASSIGNED | LSE-30 (OSS) | Flows LSR-REQ-0093, LSE-REQ-0094 and LSR-REQ-0097 to OSS so that DM can include them in DMSR for verification of the performance metrics (via LIT-276 - Getting issue details... STATUS ). | ||
| LCR-921 | DM to Provide Service for Publishing Predicted Visit Sequence | LCR ASSIGNED | LSE-61 (DMSR) | Publish telescope position and predicted schedule to the community (via LIT-215 - Getting issue details... STATUS ). | ||
| LCR-908 | Keep all Data Releases loaded in databases | LCR ASSIGNED | LSE-30 (OSS) and many subordinate documents | Adopt the following requirement: "The LSST project shall maintain user access to the contents of all Data Releases. This facility may be provided with reduced performance and capacity for Data Releases older than the most recent one, but be qualitatively identical otherwise." in place of the current policy of maintaining access only to the two most recent data releases. | RFC-325 - Getting issue details... STATUS | |
| LCR-900 | DM S17 Mid Cycle Replan | FULLY IMPLEMENTED | (PMCS) | Implement S17b plans for NCSA, SQuaRE, and AP with some small tweaks to other subsystems. | ||
| LCR-899 | Scheduler Requirements Control | STUDIED | LTS-347, possibly LSE-62 | Promote the scheduler requirements in LTS-347 to project-level change control, moving them to an LSE-* document. | ||
| LCR-888 | Proposed Meta-data header client for LSST images | LCR ASSIGNED | LSE-72, LDM-230, probably numerous others | Proposes that a common Summit-Base service be created that extracts all observation metadata (from published telemetry or the EFD) intended to be packaged with the image files, storing an artifact containing all this metadata as "headers" for later retrieval. | Q: Does this have anything to do with the reformatted EFD database? -XW | |
| LCR-851 | Update to LSE-151 | APPROVED | LSE-151 "Interface Control & Compliance Management Process" | Clarifies language surrounding ICDs and documents that describe or actually are the implementations of the interfaces controlled by ICD. | 2017-02-22 | |
| LCR-849 | Update LSE-78 LSST Observatory Network Design | FULLY IMPLEMENTED | LSE-78 | LCR-849 is to make LSE-78 consistent with and refer to the Network Sizing document LDM-142. Requested CCB if this can be voted on via the electronic voting process. I think it is non-controversial and was discussed at some length in the DM TCT when we last updated LDM-142. It would be good to get this done, as there are a number of more significant changes to the same documents coming very soon as a consequence of Tiger Team activities. | 2017-03-05 email vote | |
| LCR-838 | Auxiliary Telescope Scheduler | LCR ASSIGNED | LTS-187 (draft: SPT-372) | |||
| LCR-836 | Typographic correction to LSE-69 to match LSE-130 | APPROVED | LSE-69 | This is a trivial typographic correction that was requested a long time ago in LIT-183 - Getting issue details... STATUS . | DM-9336 - Getting issue details... STATUS | 2017-02-22 |
| LCR-835 | Camera Heterogeneous Sensor Focal Plane | LCR ASSIGNED | Implicitly sharpens requirements on ability to determine the correct pixel geometry upon data ingest from Camera to DM. May have an implication for the generation of difference imaging templates, at the (~annual) template-creation level and/or at the nightly template-warp-instantiation level. | 2017-03-22 (status check only) | ||
| LCR-795 | Updates to DM/EPO interface requirements (LSE-131) | PENDING REFINEMENT | LSE-131 | See substantive discussion in the DM Leadership Team Meeting 2017-03-20. | LIT-97 - Getting issue details... STATUS | 2017-03-22 (vote deferred) |
| LCR-788 | Transfer Task Framework from 02C.07 to 02C.06 | FULLY IMPLEMENTED | (PMCS) | Moves the Task class and a cluster of related classes and interfaces to be a responsibility of the SLAC group. | ||
| LCR-787 | Commissioning Re-Plan 2016 | STUDIED | LSE-79 | See also the February 2017 Commissioning Review. Awaiting the report of the review committee. | ||
| LCR-786 | Eliminate Base Network Outage Buffer; Expand Summit Camera Image Buffer | APPROVED | Kevin Long is awaiting guidance on what WBS element to use for the additional budget for the enlarged buffer. | |||
| LCR-780 | Eliminate Engineering & Facilites Database Copies in Offline Archive Centers | STUDIED | LSE-72, LDM-230 | Requires changing EFD interface with OCS to be the ingest to the Reformatted EFD. : discussed at an OCS-DM meeting. Further discussions planned for . | ||
| LCR-747 | Unified LSST Authentication and Authorization Services | FULLY IMPLEMENTED | LSE-279 | Provides unified authentication and authorization technical services to assure authorized individuals access LSST services and systems. | 2017-10-19 minutes | |
| LCR-733 | LSST CCD, CCS, and DAQ for the Auxiliary Telescope Spectrograph | APPROVED | LSE-140 and many others | Requires consequential changes to LSE-140 because of the change to direct spectrograph-to-DM image retrieval. The details of the timeline of capabilities required of DM to support the spectrograph, starting 8/2018, remain under analysis. | ||
| LCR-687 | Alternate Standard Visit with 30s single exposure | APPROVED | LSE-29 (LSR), LSE-30 (OSS) | Requires that DM be able to handle two types of standard visits: two 15s exposures, or one 30s exposure. Somewhat vague on the question of how closely the two types of visits could be interleaved. | 2016-11-16 minutes | |
| LCR-586 | Update LSE-209 Software to OCS ICD | APPROVED | LSE-209 | A further round of technical updates to the OCS-to-subsystem device interface. The draft already serves as the basis for the prototype and early integration work that is ongoing. | 2017-03-22 | |
| LCR-581 | Calibration Hardware Requirements Update | FULLY IMPLEMENTED | LSE-30 (OSS), LSE-60, LSE-140 (DM ICD) | |||
| LCR-458 | Support for "Deep Drilling" observing scenario | STUDIED |
Principal references: