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  1. LSST Verification and Validation
  2. LVV-18339

DMS-REQ-0359-V-18: Outlier limit on zero points

    Details

    • Type: Verification
    • Status: Not Covered
    • Priority: Undefined
    • Resolution: Unresolved
    • Component/s: DM
    • Labels:
    • Requirement ID:
      DMS-REQ-0359
    • Requirement Text:

      Specification: The DMS shall include software to enable the calculation of the photometric performance metrics defined in OSS-REQ-0387.

    • Requirement Parameters:

      [GhostAF = 1[percent] Percentage of image area that can have ghosts with surface brightness gradient amplitude of more than 1/3 of the sky noise over 1 arcsec., PF1 = 10[percent] The maximum fraction of isolated non-saturated point source measurements exceeding the outlier limit., PA1gri = 5[millimagnitude] The RMS photometric repeatability of bright non-saturated unresolved point sources in the g, r, and i filters., PA3 = 10[millimagnitude] RMS width of internal photometric zero-point (precision of system uniformity across the sky) for all bands except u-band., PA4 = 15[millimagnitude] The zero point error outlier limit., PF2 = 10[percent] Fraction of zeropoint errors that can exceed the zero point error outlier limit., PixFrac = 1[percent] The maximum fraction of pixels scientifically unusable per sensor out of the total allowable fraction of sensors meeting this performance., PA1uzy = 7.5[millimagnitude] The RMS photometric repeatability of bright non-saturated unresolved point sources in the u, z, and y filters., PA6 = 10[millimagnitude] Accuracy of the transformation of the internal LSST photometry to a physical scale (e.g. AB magnitudes)., Xtalk = 3[sigma] The maximum local significance integrated over the PSF of imperfect crosstalk corrections., PA5u = 10[millimagnitude] Accuracy of absolute band-to-band color zero-point for colors constructed using the u-band., ResSource = 2[unitless] Maximum RMS of the ratio of the error in integrated flux measurement between bright, isolated, resolved sources less than 10 arcsec in diameter and bright, isolated unresolved point sources., PA2uzy = 22.5[millimagnitude] Repeatability outlier limit for isolated bright non-saturated point sources in the u, z, and y filters., SensorFraction = 15[percent] The maximum allowable fraction of sensors with PixFrac scientifically unusable pixels., PA3u = 20[millimagnitude] RMS width of internal photometric zero-point (precision of system uniformity across the sky) in the u-band., PA2gri = 15[millimagnitude] Repeatability outlier limit for isolated bright non-saturated point sources in the g, r, and i filters., SBPrec = 1[percent] The maximum error in the precision of the sky brightness determination., PA5 = 5[millimagnitude] Accuracy of absolute band-to-band color zero-point for all colors constructed from any filter pair, excluding the u-band.]

    • Requirement Discussion:

      Discussion: The relevant metrics are listed in the table photometricPerformance below. The values in the tables are the target values for LSST but are not verified as part of this requirement.

    • Higher Level Requirement:

      OSS-REQ-0387: 01 Photometric Performance

    • Verification Method:
      Undefined
    • Success Criteria:
      Hide

      Undefined

      Show
      Undefined
    • Percentage of Test Passing:
      0.0%
    • Sub-Component:
      Science

      Description

      The distribution width (rms) of the internal photometric zero-point error (the system stability across the sky) will not exceed PA3 millimag, and no more than PF2 % of the distribution will exceed PA4 = 15 millimag. (This VE is for PA4.)

        Attachments

        Verification Siblings

        Key Summary Status Method Verification Requirement Success Criteria Test Cases % Tests Passed Verified By
         
        LVV-3401

        DMS-REQ-0359-V-01: RMS photometric repeatability in uzy

        Not Covered Undefined

        The RMS photometric repeatability of bright non-saturated unresolved point sources in the u, z, and y filters shall be less than PA1uzy = 7.5 millimagnitudes.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T1756: Verify calculation of photometric repeatability in uzy filters 0.0%
         
        LVV-9751

        DMS-REQ-0359-V-02: Max fraction of sensors with excess unusable pixels

        Not Covered Undefined

        The maximum allowable fraction of sensors with PixFrac > 1 percent scientifically unusable pixels shall be SensorFraction = 15 percent.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1847: Verify calculation of sensor fraction with unusable pixels
        0.0%
         
        LVV-9752

        DMS-REQ-0359-V-03: Max fraction of outliers among non-saturated sources

        Not Covered Undefined

        The maximum fraction of isolated non-saturated point source measurements exceeding the outlier limit shall be less than PF1 = 10 percent.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T1758: Verify calculation of photometric outliers in uzy bands,
        LVV-T1759: Verify calculation of photometric outliers in gri bands
        50.0%
         
        LVV-9753

        DMS-REQ-0359-V-04: Accuracy of zero point for colors with u-band

        Not Covered Undefined

        The accuracy of absolute band-to-band color zero-points for all colors constructed from any filter pair, including the u-band shall be less than PA5u = 10 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1846: Verify calculation of band-to-band color zero-point accuracy including u-band
        0.0%
         
        LVV-9754

        DMS-REQ-0359-V-05: Repeatability outlier limit in gri

        Not Covered Undefined

        The repeatability outlier limit for isolated bright non-saturated point sources in the g, r, and i filters shall be less than PA2gri = 15 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T1759: Verify calculation of photometric outliers in gri bands 100.0%
         
        LVV-9755

        DMS-REQ-0359-V-06: Accuracy of photometric transformation

        Not Covered Undefined

        The accuracy of the transformation of internal LSST photometry to a physical scale (e.g. AB magnitudes) shall be less than PA6 = 10 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1845: Verify accuracy of photometric transformation to physical scale
        0.0%
         
        LVV-9756

        DMS-REQ-0359-V-07: RMS width of zero point in u-band

        Not Covered Undefined

        The RMS width of internal photometric zero-point (precision of system uniformity across the sky) in the u-band shall be less than PA3u = 20 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1844: Verify calculation of u-band photometric zero-point RMS
        0.0%
         
        LVV-9757

        DMS-REQ-0359-V-08: Max cross-talk imperfections

        Not Covered Undefined

        The maximum local significance integrated over the PSF of imperfect crosstalk corrections shall be less than Xtalk = 3 sigma.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1843: Verify calculation of significance of imperfect crosstalk corrections
        0.0%
         
        LVV-9758

        DMS-REQ-0359-V-09: Repeatability outlier limit in uzy

        Not Covered Undefined

        The repeatability outlier limit for isolated bright non-saturated point sources in the u, z, and y filters shall be less than PA2uzy = 22.5 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T1758: Verify calculation of photometric outliers in uzy bands 0.0%
         
        LVV-9759

        DMS-REQ-0359-V-10: RMS photometric repeatability in gri

        Not Covered Undefined

        The RMS photometric repeatability of bright non-saturated unresolved point sources in the g, r, and i filters must be less than PA1gri = 5 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T1757: Verify calculation of photometric repeatability in gri filters 100.0%
         
        LVV-9760

        DMS-REQ-0359-V-11: Fraction of zero point outliers

        Not Covered Undefined

        The fraction of zeropoint errors that can exceed the zero point error outlier limit is less than PF2 = 10 percent.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1842: Verify calculation of zeropoint error fraction exceeding the outlier limit
        0.0%
         
        LVV-9761

        DMS-REQ-0359-V-12: Max fraction of unusable pixels per sensor

        Not Covered Undefined

        The maximum fraction of pixels scientifically unusable per sensor out of the total allowable fraction of sensors meeting this performance shall be PixFrac = 1 percent.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1841: Verify calculation of scientifically unusable pixel fraction
        0.0%
         
        LVV-9762

        DMS-REQ-0359-V-13: Max sky brightness error

        Not Covered Undefined

        The maximum error in the precision of the sky brightness determination shall be less than SBPrec = 1 percent.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1840: Verify calculation of sky brightness precision
        0.0%
         
        LVV-9763

        DMS-REQ-0359-V-14: RMS width of zero point in all bands except u

        Not Covered Undefined

        The RMS width of the internal photometric zero-point (precision of system uniformity across the sky) for all bands except u-band shall be less than PA3 = 10 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1839: Verify calculation of RMS width of photometric zeropoint
        0.0%
         
        LVV-9764

        DMS-REQ-0359-V-15: Percentage of image area with ghosts

        Not Covered Undefined

        The percentage of image area that has ghosts with surface brightness gradient amplitude of more than 1/3 of the sky noise over 1 arcsec shall be less than GhostAF = 1 percent.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1838: Verify calculation of image fraction affected by ghosts
        0.0%
         
        LVV-9765

        DMS-REQ-0359-V-16: Accuracy of zero point for colors without u-band

        Not Covered Undefined

        The accuracy of absolute band-to-band color zero-points for all colors constructed from any filter pair, excluding the u-band, shall be less than PA5 = 5 millimagnitudes.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-17 (LVV-9766) satisfies the maximum RMS of the ratio of the flux measurement error between resolved/unresolved sources.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1837: Verify calculation of band-to-band color zero-point accuracy
        0.0%
         
        LVV-9766

        DMS-REQ-0359-V-17: Max RMS of resolved/unresolved flux ratio

        Not Covered Undefined

        The maximum RMS of the ratio of the error in integrated flux measurement between bright, isolated, resolved sources less than 10 arcsec in diameter and bright, isolated unresolved point sources shall be less than ResSource = 2.

        Associated element DMS-REQ-0359-V-01 (LVV-3401) satisfies the requirement on photometric repeatability in the u, z, and y-band filters.

        Associated element DMS-REQ-0359-V-02 (LVV-9751) satisfies the requirement on the maximum fraction of sensors with scientifically unusable pixels.

        Associated element DMS-REQ-0359-V-03 (LVV-9752) satisfies the constraint on maximum fraction of outliers among non-saturated point sources.

        Associated element DMS-REQ-0359-V-04 (LVV-9753) satisfies the accuracy of zero-point for colors that use the u-band.

        Associated element DMS-REQ-0359-V-05 (LVV-9754) satisfies the repeatability outlier limit in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-06 (LVV-9755) satisfies the constraint on the accuracy of the transformation from internal to physical photometric scales.

        Associated element DMS-REQ-0359-V-07 (LVV-9756) satisfies the rms width of the internal photometric zero-point in u-band.

        Associated element DMS-REQ-0359-V-08 (LVV-9757) satisfies the maximum local significance of imperfect crosstalk corrections.

        Associated element DMS-REQ-0359-V-09 (LVV-9758) satisfies the repeatability outlier limit in u, z, and y-bands.

        Associated element DMS-REQ-0359-V-10 (LVV-9759) satisfies the rms photometric repeatability in g, r, and i-bands.

        Associated element DMS-REQ-0359-V-11 (LVV-9760) satisfies the fraction of zero-point errors that can exceed the outlier limit.

        Associated element DMS-REQ-0359-V-12 (LVV-9761) satisfies the maximum fraction of unusable pixels per sensor.

        Associated element DMS-REQ-0359-V-13 (LVV-9762) satisfies the maximum allowable precision in the sky brightness determination.

        Associated element DMS-REQ-0359-V-14 (LVV-9763) satisfies the rms width of the internal photometric zero-point in g, r, i, z, and y-bands.

        Associated element DMS-REQ-0359-V-15 (LVV-9764) satisfies the percentage of the image area affected by ghosts that exceed the threshold.

        Associated element DMS-REQ-0359-V-16 (LVV-9765) satisfies the accuracy of zero-point for colors that do not include the u-band.

        Undefined

        LVV-T377: Verify Calculation of Photometric Performance Metrics,
        LVV-T1836: Verify calculation of resolved-to-unresolved flux ratio errors
        0.0%

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          aroberts Austin Roberts added a comment -

          Updated per LCR-2004.

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            People

            • Assignee:
              lguy Leanne Guy
              Reporter:
              syndeiapseuser Syndeia PSE User
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              Dates

              • Created:
                Updated:
                Resolved:

                Summary Panel