LargeSynopticSurveyTelescop
    CharacterizationMetric
    PipelinesVersion12.0
    JohnSwinbank,JimBosch,andSimonKrughoff
    DMTR-14
    LatestRevision:2016-03-08
    Abstract
    Thisbriefreportdescribemeasurementsofinterestthat
    v12.0oftheSciencePipeline.
    ThereportforthepreviousversioncanbefoundinDMTR-11.
    LARGESYNOPTICSURVEYTELESCOPE

    LARGESYNOPTICSURVEYTELESCOPE
    V12.0CharacterizationRepoDMTR-14rtLatestRevision2016-03-08
    Contents
    1PhotometricRepeatabilityMeasurements1
    2AlgorithmicPerformanceMeasurements2
    3SummaryofComputationalPerformanceMeasurements2
    ii

    LARGESYNOPTICSURVEYTELESCOPE
    V12.0CharacterizationRepoDMTR-14rtLatestRevision2016-03-08
    CharacterizationMetricReport:Science
    12.0
    1PhotometricRepeatabilityMeasurements
    SubmittedbyJimBosch
    Thisdatasetisaselectionof?-bandHyperSuprime-Camengineeringdat
    Stripe82region.Thisdatasetconsistsof30sexposures,
    LSSTdataindepth.Ourcurrentcalibrationapproachhas
    weultimatelyplantoimplementforLSST:
    •There’scurrentlynorelativecalibrationbeingrunat
    •Wehaveonlylimitedcorrectionforchromaticeffects.
    •There’scurrentlynoallowanceforzeropointvariations
    •WealsouseamuchsimplersampleselectionthanthatproposedSRD.
    AJupyternotebooktocomputethemetricscanbefoundat
    https://github.com/lsst/afw/
    blob/tickets/DM-3896/examples/repeatability.ipynb
    Metric Characterized
    Metric Ref Target
    Measured
    Value
    Measurement
    Method
    Photometric
    repeatability
    (procCalRep)
    DLP-307
    ≤ 13
    mmag
    10.6
    mmag
    DM-3338
    (
    ?
    band)
    Photometric
    repeatability (PA1gri)
    DLP-315
    ≤ 13
    mmag
    10.6
    mmag
    DM-3338
    Photometric
    repeatability (PA1uzy)
    DLP-316
    ≤ 13
    mmag
    10.6
    mmag
    DM-3338
    (
    ?
    band)
    1

    LARGE SYNOPTIC SURVEY TELESCOPE
    V12.0 Characterization RepoDMTR-14
    rt
    Latest Revision 2016-03-08
    2 Algorithmic Performance Measurements
    Submitted by John Swinbank
    The
    ?
    -band HSC engineering data (described above) was used
    caveats apply. Consult the tickets in the Measurement Method
    Metric Characterized
    Metric Ref Target
    Measured
    Value
    Measurement
    Method
    Residual PSF
    Ellipticity
    Correlations (TE1)
    DLP-290
    ≤ 5 ×
    −3
    10
    6 × 10
    −5
    DM-3040
    Residual PSF
    Ellipticity
    Correlations (TE2)
    DLP-290
    ≤ 5 ×
    −3
    10
    2 × 10
    −5
    DM-3047
    Relative
    Astrometry
    DLP-310
    (AM1)
    < 60
    mas
    12.49
    masDM-3057
    Relative
    Astrometry
    DLP-311
    (AM2)
    < 60
    mas
    12.19
    masDM-3064
    3 Summary of Computational Performance Measurements
    Submitted by John Swinbank and Simon Krughoff
    At this point of Construction, the computational performance
    tion of precursor data processing and extrapolation from
    DECam/HITS data was used for the OTT1 estimate and for the
    surement of the Alert Production Computational Budget in
    3rd Data Challenge
    .
    For the Data Release Production of the computational budget,
    estimating diffim performance, HSC-I for assembling and measuring
    measurement, estimates from FDR for multifit, and data from
    SDQADocument-26217
    [
    ]. Calculations for the DRP
    computational
    this iPython
    budget
    notebook
    .
    2

    LARGE SYNOPTIC SURVEY TELESCOPE
    V12.0 Characterization RepoDMTR-14
    rt
    Latest Revision 2016-03-08
    Metric
    Characterized
    Metric Ref Target
    Measured
    Value
    Measurement
    Method
    OTT1
    DLP-328
    ≤ 240
    sec
    200-250DM-3724
    sec
    AP
    Computational
    Budget
    DLP-329
    ≤ 231
    TFLOPS 34-39
    TFLOPS
    DM-3267
    DRP
    Computational
    Budget
    DLP-314
    ≤ 645
    TFLOPS 318
    TFLOPS
    DM-3083
    References
    [1]
    [DMTR-11]
    , Economou, F., Swinbank, J., Bosch,
    Characterization
    J., Krughoff,
    ric Report: Science Pipelines
    ,DMTR-11,URLhttps://ls.st/
    Version 11.0 (Summer
    2015)
    DMTR-11
    [2][LPM-17],Ivezić,Ž.,TheLSSTScienceCollaboration,2011,LSSTScienceRequirements
    ument,LPM-17,URLhttps://ls.st/LPM-17
    [3][Document-26217],Kantor,J.,2010,DataChallenge3bPerformanceTest,Document-
    26217,URLhttps://ls.st/Document-26217
    3

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