CLARREO PathfinderInter-Calibration Workshop

CPF Mission Requirements,Objectives, and Status

Gary Fleming, Project Manager

November 30, 2016(757).864.6664

Gary.A.Fleming@NASA.govhttp://fpd.larc.nasa.gov/index.html

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CLARREOPathfinderProjectOverview

Ø CLARREOPathfinderisadirectedmissionthroughtheNASAScienceMissionDirectorate– EarthScienceDivision• NASALangleyhasoverallprojectmanagementresponsibility

Ø CLARREOPathfinderisariskreductionmission forapotentialfuturefullCLARREOMission• Twoprimarymissionobjectives:

1. Demonstrateonorbit,highaccuracy,SI-Traceablecalibration2. Demonstrateabilitytotransferthiscalibrationtootheron-orbitassets

Ø Projectscopeconsistsofformulation,implementation,launch,operation,andanalysisofmeasurementsfromaReflectedSolar(RS)Spectrometer,launchedtotheInternationalSpaceStation(ISS)

Ø Category3(NPR7120.5E)/ClassDMission(NPR8705.4),nominal1-yearmissionlife+1yearsciencedataanalysis

Ø TargetedforlaunchinlateCY2020– earlyCY2021Ø AuthoritytoProceedreceivedApril11,2016

CLARREO Pathfinder is not the end, it is a critical step along the way to a full CLARREO Mission.

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CLARREOPathfinder:BaselineMissionObjectives

Objective #1: Demonstrate the ability to conduct, on orbit,SI-Traceable calibration of measured scene spectral reflectance in wavelength range from 350 - 2300 nm, with an advanced accuracy over current on-orbit sensors using a reflected solar spectrometer flying on the International Space Station.

Objective #2: Demonstrate the ability to use that improved accuracy to serve as an in orbit reference spectrometer for advanced inter-calibration of other key satellite sensors across the reflected solar spectrum (350-2300 nm).

Demonstrate high accuracy SI-Traceable Calibration Demonstrate Inter-Calibration Capabilities

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DraftLevel-1RequirementsSummary

MeasurementUncertainty

DemonstrationParameter BaselineObjective*

ThresholdRequirement**

Spectrally-Resolved EarthReflectance(350– 2300nm):SI-Traceable,referencedtospectralsolarirradiance ≤0.3%(k=1) ≤0.6%(k=1)

Spectrally-IntegratedEarthReflectance(350– 2300nm):SI-traceablebroadband(350- 2300nm)spectrally-integratedEarthreflectancewithspectralaccuracyweightedusingglobalaverageEarthspectrallyreflectedenergy

≤0.3%(k=1) ≤0.6%(k=1)

On-OrbitInter-Calibration***:DemonstratetheabilitytoInter-Calibrate withCERES/RBIshortwavechannelandVIIRSreflectancebands

≤0.3%(k=1) ≤0.6%(k=1)

*BaselineObjectiveiswithinafactorof2offullCLARREOTier-1DecadalSurveyMissionRequirements**Thresholdrequirementisafactorof2(CERES)to4(VIIRS)betterthancurrentcapabilities.***Inter-calibrationuncertaintyarecontributionsfromdatamatchingnoise.

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Ø TheCLARREOPathfindermissionshalldemonstrateonorbitcalibrationaccuracyimprovementoverexistingreflectedsolarinstrumentation,andusethesedatatodemonstrateinter-calibrationwiththeseinstruments.

CLARREOPathfinderMissionSuccessCriteria

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Ø CERES/RBIandVIIRSaretherequired instrumentsfordemonstratinginter-calibrationcapability• CERES/RBIShortWaveChannel• VIIRSReflectanceBands• Inter-CalibrationpossibilitiesincludeCERES/VIIRSonSuomi NPPandJPSS-1,

andRBI/VIIRSonJPSS-2

Ø CLARREOPathfinderprojectobjective istohavethecapabilitytoacquirethedatanecessarytodemonstrateinter-calibrationwithotherEarth-observinginstruments• Theobjectiveisintendedtogetasmuchscientificvalueoutifthisriskreduction

missionaspossiblewithintheavailablebudgetandschedule• Acquisitionofdata fordemonstratinginter-calibrationwithinstrumentsotherthan

CERES/RBIandVIIRSwillbeaseventsofopportunity• Processingthedata fordemonstratinginter-calibrationwithinstrumentsotherthan

CERES/RBIandVIIRS isnotwithincurrentCLARREOPathfinderprojectscope/budget§ Wewelcometheopportunitytoworkwithotherprojectstoarrange/advocateforthenecessaryfunding

Inter-CalibrationRequirementsandObjectives

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Ø CLARREOPathfinderiscurrentlyinpre-Formulation(pre-PhaseA)

• SuccessfulMissionConceptReviewonAugust24-26,2016

• KeyDecisionPoint-A(KDP-A)gatereviewscheduledforJanuary12,2017

Ø CLARREOPathfinderisarecognizedInternationalSpaceStation(ISS)payloadandislistedontheMiPROM (MiPROM =ISSpayloadscheduleplanningtool)

• InstrumentpayloadisplannedtobeaccommodatedontheISSatExpressLogisticsCarrier#1(ELC-1)Site#3

• ISShasplannedforan18-monthoccupancyfortheCLARREOPathfinderpayload(October2020throughMarch2022)

§ Includes2-monthcommissioningperiod+12monthsprimemissionoperations

Ø ProjectiscurrentlyperformingthenecessaryworktoestablishcontractsandpartnershipsduringtheFormulationphaseoftheproject

CLARREOPathfinderProjectStatus

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Thank you for attending the CLARREO PathfinderInter-Calibration Workshop!

We appreciate and value your input.

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