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LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

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LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site
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Page 1: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

LSST Schedulerrequirements

Francisco DelgadoSr. Software Engineer

Telescope & Site

Page 2: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

2

Scheduler Interfaces in OCS

SchedulerTelemetry

History

Control

Targets

Image Quality

OCS Application

communications middleware

TCSEFD DMCS

OCS Sequencer

VisitsSchedTelem

CCS

CmdVisits

Page 3: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

Scheduler Internal Block Diagram

Conductor

Slew Time

Scheduling Data

Candidates

Observation History

Scheduler

Control

Telemetry

History

Image Quality

Visits

Targets

Sched Telem

Sched Mode

Downtime

Degraded

Targets

Observatory conditions

Environment conditions

Forecast

Quality parameters

Past observations

Current observation

Sched Telem

Astronomical Sky

Sky brightness

coordinates

Science ProgramsValue functions

Cost functions

Time

Observatory Model

Kinematic model

coordinates

CandidatesEnvironment conditions

Sched Config

3

Page 4: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

4

Requirements Flow down

Science Requirements Document

LPM-17

Scheduler RequirementsDOC-16282

Observatory System Specifications

LSE-30

LSST System Requirements

LSE-29

OpSim RequirementsDOC-15320Observatory Control

System RequirementsLSE-62

Science Book

Metrics RequirementsDOC-15319

Science Collaborations

Page 5: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

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Scheduler Requirements

2.1Inputs2.1.1 Survey Parameters2.1.2 Scheduling Parameters2.1.3 System Parameters2.1.4 Internal Conditions2.1.5 External Conditions2.1.6 Performance Feedbacks

Page 6: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

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Scheduler Requirements

2.2Outputs2.2.1 Next Target2.2.2 Predicted Schedule2.2.3 Scheduling Meta Data2.2.4 Survey Progress

Page 7: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

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Scheduler Requirements

2.3 Functional Requirements2.3.1 Observatory Model2.3.2 Update Observatory Model2.3.3 Scheduler History2.3.4 Science Proposals2.3.5 Sequences in Time Distribution

Proposals2.3.6 Sky Brightness Model2.3.7 Update Sky Brightness Model

Page 8: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

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Scheduler Requirements

2.3.8 Cost Function2.3.9 Filter Swap2.3.10 Self-balancing Proposal Progress2.3.11 Deterministic Look Ahead2.3.12 Downtime Handling2.3.13 Warm start capability2.3.14 Dithering2.3.15 Operation in Event of Input Failure

Page 9: LSST Scheduler requirements Francisco Delgado Sr. Software Engineer Telescope & Site.

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Scheduler Requirements

2.4 Performance Requirements2.4.1 Speed

2.5 Attributes2.5.1 Multiple Scheduling Algorithms2.5.2 Algorithms from OpSim2.5.3 Optimizations from OpSim2.5.4 Global Survey Optimization


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