Europa Clipper: Update to CAPS - National...

Bob Pappalardo and Dave Senske Jet Propulsion Laboratory, California Institute of Technology

Sept. 12, 2017

Europa Clipper: Update to CAPS

© 2017 California Institute of Technology. Government Sponsorship acknowledged.

Overview

Pre-decisional: for information and discussion purposes only. 9/12/17 2

• PSG #5 Recap

• Project-Level Schedule

• PDR Schedule

• Tour Update

• Instruments & Spacecraft

• Prototype Hardware

• Science Traceability and

Alignment Framework

Project-Level Lifecycle Schedule

9/12/17 3

FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 FY22 FY23

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D

NASA Milestone PDR CDR Flight Delivery Integrate Schedule Margin Critical Path Secondary Critical Path Need Date

12/25/16

Europa Multi-Flyby Mission (SLS)

PRE-PHASE A PHASE A (20 mo) PHASE B (20 mo) PHASE C (26 mo) PHASE D (18 mo) PHASE E

NASA Reviews KDP-A 2/17 KDP-B 10/18 KDP-C 12/20 KDP-D 5/22 KDP-E

Project Reviews PCR MCR 1/17 SRR/MDR 8/18 Project PDR 11/19 Project CDR 9/20

SIRPSR1/22

ORR3/22

MRR 4/22

Launch6/22

05 Payload Step 1 AO Rls Select IARs

REASON Delta IAR

9/17 I-PDRs

5/18 9/18 I-CDRs

5/19Instruments

11/20

MASPEX, PIMS, EIS11/20

Instr #1-9 Ready for Syst I&T

06 Spacecraft10/17

FS PDR11/17

Fault MgmntPDR

11/19FS CDR

12/19

Fault MgmntCDR

L3 FS Req (Baseline)

L3 FS Req (BL Rev C)

L3 FS Req (BL Rev D)

Power 11/17PDR

8/19CDR

PCDA FM 101

Mechanical 2/18PDR

5/19CDR Secondary Structures/Nadir Platform/Mag Boom

Vault

Avionics 4/18PDR

9/19CDR

SSE CDH 1 CDH 2

Telecom 3/18PDR

3/19CDR HGA

Thermal 2/18PDR CDR

HeaterBlock

Radiator IPAVault Panels

GNC 2/18PDR CDR IMU RWA CSS SRU

Prop Module 7/17PDR

3/18FREEZE

7/18CDR

Propulsion Module

PME & Solar ArrayPME PDR PME CDR PME #1 to Prop I&T

Solar ArraysSA PDR SA CDR

Propulsion SS 6/17PDR

3/18FREEZE

6/18CDR

4/20Prop S/S to APL

Avionics Test BedAVSTB1 Ready AVSTB2 Ready

FS I&T STB #1

STB #2

SI&T Start

Ship KSCLaunch Campaign

07/09 Mission System

07 MOS/ 09 GDS 5/18

MOS & MD/NAV PDR

6/19

MOS & MD/NAV CDR

FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 FY22 FY23

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D

NASA Milestone PDR CDR Flight Delivery Integrate Schedule Margin Critical Path Secondary Critical Path Need Date

12/25/16

Europa Multi-Flyby Mission (SLS)

PRE-PHASE A PHASE A (20 mo) PHASE B (20 mo) PHASE C (26 mo) PHASE D (18 mo) PHASE E

NASA Reviews KDP-A 2/17 KDP-B 10/18 KDP-C 12/20 KDP-D 5/22 KDP-E

Project Reviews PCR MCR 1/17 SRR/MDR 8/18 Project PDR 11/19 Project CDR 9/20

SIRPSR1/22

ORR3/22

MRR 4/22

Launch6/22

05 Payload Step 1 AO Rls Select IARs

REASON Delta IAR

9/17 I-PDRs

5/18 9/18 I-CDRs

5/19Instruments

11/20

MASPEX, PIMS, EIS11/20

Instr #1-9 Ready for Syst I&T

06 Spacecraft10/17

FS PDR11/17

Fault MgmntPDR

11/19FS CDR

12/19

Fault MgmntCDR

L3 FS Req (Baseline)

L3 FS Req (BL Rev C)

L3 FS Req (BL Rev D)

Power 11/17PDR

8/19CDR

PCDA FM 101

Mechanical 2/18PDR

5/19CDR Secondary Structures/Nadir Platform/Mag Boom

Vault

Avionics 4/18PDR

9/19CDR

SSE CDH 1 CDH 2

Telecom 3/18PDR

3/19CDR HGA

Thermal 2/18PDR CDR

HeaterBlock

Radiator IPAVault Panels

GNC 2/18PDR CDR IMU RWA CSS SRU

Prop Module 7/17PDR

3/18FREEZE

7/18CDR

Propulsion Module

PME & Solar ArrayPME PDR PME CDR PME #1 to Prop I&T

Solar ArraysSA PDR SA CDR

Propulsion SS 6/17PDR

3/18FREEZE

6/18CDR

4/20Prop S/S to APL

Avionics Test BedAVSTB1 Ready AVSTB2 Ready

FS I&T STB #1

STB #2

SI&T Start

Ship KSCLaunch Campaign

07/09 Mission System

07 MOS/ 09 GDS 5/18

MOS & MD/NAV PDR

6/19

MOS & MD/NAV CDR

Earliest Launch

(Funding Dependent)

We Are Here

Pre-decisional: for information and discussion purposes only.

’Tis the Season for Preliminary Design Reviews (PDRs)

• Propulsion Subsystem 6/27-29/17 (Goddard) • Propulsion Module 7/24-27/17 (APL) • Flight System 10/17-20/17 (JPL) • Europa-UVS 11/16-17/17 (SWRI) • PIMS 12/6-7/17 (APL) • REASON 12/11-12/17 (JPL) • EIS 1/9-11/18 (APL) • SUDA 1/17-18/18 (Univ. Colorado) • Solar Array 1/22-23/18 (APL) • Power 1/24-25/18 (JPL) • E-THEMIS 1/30-31/18 (ASU) • ICEMAG 2/14-15/18 (JPL) • Guidance, Navigation & Control

2/7-8/18 (JPL) • Mechanical 2/12-15/18 (JPL) • Thermal 2/15-16/18 (JPL) • Radio Frequency Module /

Telecom 3/14-15/18 (JPL) • Radiation Monitors 4/18 (APL)

9/12/17

4

• Avionics 4/30-5/4/18 (JPL) • MISE 4/25-26/18 (JPL) • MASPEX 5/15-16/18 (SWRI) • Fault Management 5/15/18 (JPL) • Mission Design & Navigation 6/4-5/18 (JPL) • Mission Operations System & Ground Data

System 6/6-7/18 (JPL) • Project PDR 8/20-24/18 (JPL)

Spacecraft Mission System Payload Project


PSG Meeting #5 Recap May 17–19, 2017

9/12/17

5 Pre-decisional: for information and discussion purposes only.

• Discuss science actions from MDR-SRR

• Evaluate tour options for Preliminary Design Reviews

• Outline Potential Collaborative Data Products

– Quick-look and higher-level data products

• Establish foundation for Mission System plans: – Science observation planning & analysis tools – Data processing, analysis, & archiving – Feed-forward & latency

• Begin to define an Integrated Plume Search strategy

– Established a new Plumes Focus Group

– Co-Chairs: Matt Hedman & Carly Howett

• Confer on Rules of the Road development

• Discuss Project communications and remote collaborations

• Review Science Traceability and Alignment Framework for traceability from Level 1 science requirements to science observation types

• Nominate TWG Co-Chairs for rotation

– Britney Schmidt (Habitability), Julie Rathbun (Geology), James Roberts (Interior), Murthy Gudipati (Composition)

6 This document has been reviewed and determined not to contain export controlled technical data.

17F12_V2 Trajectory

9/12/17


Tour Update 17F12_v2

9/12/17


• Tweaked to include lower flybys in leading hemisphere • Now fly directly over Callanish (<100 km altitude)!

Europa Clipper Science Instruments

9/12/17 8 Pre-decisional: for information and discussion purposes only.

PIMS - Upper Sensor

EIS -

NAC

EIS -

WAC

PIMS -

Lower Sensor

MISE

SUDA

MASPEX

Europa-UVS

E-THEMIS

REASON -

VHF (x4)

REASON -

HF (x2)

ICEMAG

In Situ Remote Sensing

Spacecraft Configuration Update: 4.5 Solar Panels Per Wing

9/12/17


16m REASON HF Antenna

(x2)

Solar Array Panels

(4.5 per wing)

~90 m2 area

5 m ICEMAG

Boom

Nadir-Pointed Instruments

REASON VHF Antenna

(x4)

3 m High

Gain Antenna

22 N Thrusters (x16)

Ram-Pointed

Instruments

9/12/17

10

Prototype Hardware Solar Array Panel Demonstrator


Prototype Hardware High Gain Antenna

9/12/17


Prototype Hardware REASON VHF Antenna

9/12/17


• The Project-Science Traceability and Alignment Framework (P-STAF) is a

tool for codifying how the Europa Clipper science is planned to be

achieved - Traces flow from the Level-1 Science Requirements to instrument measurements

- Permits evaluation of instrument capability synergies and areas of overlap

• This P-STAF approach permits assessment of instrument contributions

and robustness in achieving Level-1 Science Requirements, relevant to: - Deriving a decision framework to assess science impacts, when performing cost

trades as part of instrument and mission development

- Understanding implications of possible changes in instrument science scope

- Evaluating implications of faults that might disrupt instrument observations during

the science campaigns

Project Science Traceability and Alignment

Framework (P-STAF): Introduction

9/12/17



Framework (P-STAF): Taxonomy

14

Breakdown of the L1 Requirements into Science Groupings e.g. Ocean, Ice Shell

Unique Combination of Conditions and Techniques that Collect Data to Support Science e.g. VHF Sounding; Surface Color Monoscopic Images; Impact Mass Spectrometry Endogenic Particles

Grouping of Observations/Data from a Specific “Measurement Class” that Support a Specific Theme e.g. Landform Geology Visible Dataset; Landform Geology Radar Dataset

Different Ways to Address a Specific Theme e.g. Induction, Sounding, Gravity

P-S

TA

F D

om

ain

Instruments

Science Themes

Mission Science

Objectives (in L1s)

Science Datasets

Mission Science Goal

Science

Observations

Approach

Science Themes

Mission Science

Objectives (in L1s)


Approach

• STAF framework offers:

– Traceability

– Completeness

– Consistency across

instruments

• STAF provides efficiency:

– Prioritization

– Tour analysis

– Mission robustness

analysis

9/12/17


Goal

Exp

lore

Eu

rop

a to

Inve

stig

ate

its

Hab

itab

ility


Framework (P-STAF)

15 9/12/17


Baseline Approaches

Sounding

Sounding

Induction, Sounding, Shape and Gravity

Induction, Shape and Gravity

Complex Species and Units, Simple Species and Units

Complex Species and Units, Simple Species and Units

Plasma, Complex Volatile Species, Simple Volatile

Species, Particulates

Plasma, Complex Volatile Species, Simple Volatile

Species, Particulates

Morphology

Morphology, Topography

Morphology, Roughness and Permittivity

Volatiles, Particulates

Atmospheric Particulates, Atmospheric Volatiles, Plasma

Thermal Emission

Deposits, Surface Changes

Science Themes

Deep Subsurface Exchange

Shallow Subsurface Structure

Ice Shell Properties

Ocean Properties

Global Compositional Surface Mapping

Landform Composition

Atmospheric Composition

Space Environment Composition

Global Surface Mapping

Landform Geology

Local-Scale Surface Properties

Remote Plume Search and Characterization

In Situ Plume Search and Characterization

Surface Thermal Anomaly Search

Surface Activity Evidence Instruments

Science Themes

Mission Science

Objectives (in L1s)

Science Datasets


Science

Observations

Approach

Science Themes

Mission Science

Objectives (in L1s)


Approach

P-S

TA

F D

om

ain

Science Synergy & Redundancy High Level Roll-Up to Baseline Level-1 Science Requirements

9/12/17

16

Primary


Independent Supporting Enhancing

Science Themes

Full P-STAF Matrix (In Progress)

17

Science Observations by Measurement Class

L1

, S

cie

nce

Th

em

e, A

pp

roa

ch

Inve

stigMea

s.

Desi

gnatHF VHF HF VHF VHF HF, VHF NAC WAC NAC WAC NAC WAC NAC WAC NAC WAC NAC WAC NAC WAC NAC WAC NAC {Radar Support}WAC {Radar Support}WAC {Radar Support}WAC {Radar Support}WAC {Radar Support}NAC {Radar Support}NAC {Radar Support}NAC {Radar Support}MISE MISE MISE E-THEMIS E-THEMIS E-THEMIS E-THEMIS Europa-UVS Europa-UVS Europa-UVS Europa-UVS Europa-UVS Europa-UVS Europa-UVS Europa-UVS Europa-UVS Europa-UVS PIMS PIMS SUDA SUDA SUDA MASPEX MASPEX Gravity Gravity

B/T L1 Requirements Science

Themes

Codi

ng

of

Approach

Co

din

g

HF

Sounding

VHF

Sounding

HF

Reflectome

try

VHF

Reflectome

try

VHF

Altimetry

HF/VHF

Plasma

Imaging of

Crossovers

Imaging of

Crossovers

Ground Track

(Surface) Pan

(Mono)

Ground Track

(Surface) (Pan)

Stereo Deep

Sounding

Ground Track

(Surface) (Pan)

Stereo Shallow

Sounding

(Surface) Pan

(Mono)

(Surface) (Pan)

Stereo Deep

Sounding

(Surface) (Pan)

Stereo Shallow

Sounding

Day Scans Night ScansLimb High-

Phase Scans

Day or Night

Nadir StaresDay Scans Night Scans Limb Stare

Day Surface

Aurora and

Airglow

Nadir Stare

Night

Surface

Aurora and

Airglow

Surface

Aurora and

Airglow

Nadir Stare

Day Scans Night ScansScans (Any

Condition)

Stellar

Occultations

Solar

Occultations

Jupiter

Transits

Neutral

Cloud and

Torus Stare

Magnetic Waves Ions ElectronsEndogenic

Particle

Exogenic

Ring

Particle

Exogenic

Nanograin

Particle

Ambient Cryotrap FanbeamLow Gain

Antenna

Deep

Subsurface

Exchange

1 RF Probing 1

P1 P1 P1 P1 P1 B B B B B B B B B B B B B B B B B B B S1 S1 B S1 S1 B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

Shallow

Subsurface

Structure

2 RF Probing 1

P1 P1 P1 P1 P1 B B B B B B B B B B B B B B B B B B B E B S1 E B S1 B B B E E E B B B B B B B B B B B B B B B B B B B B B B

Deep

Subsurface

Exchange

1 RF Probing 1

P1 P2 P1 P2 P2 B B B B B B B B B B B B B B B B B B B E E B E E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

Shallow

Subsurface

Structure

2 RF Probing 1

P1 P2 P1 P2 P2 B B B B B B B B B B B B B B B B B B B E B E E B E B B B E E E B B B B B B B B B B B B B B B B B B B B B B

Induction 1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B S1 S1 B B B B B B B

RF Probing 1

I1 I1 B B I1 B B B B B B B B B B B B B B B B B B B S1 E E S1 E E B B B E E E B B B B B B B B B B B B B B B B B B B B B B

Obliquity, Shape

and Gravity0

B B B B E B E E E E B B B B B B B B B B B B B ?E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E E

Induction 1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B P1 B S1 S1 B B B B B B B

Shape and

Gravity0

B B B B B B E E E E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E E

Composition 0

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B P1 B B P1 P1 B B

Induction 1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B E E B B B B B B B

RF Probing 2 P1 P2 B B P1,P2 B B B B B B B B B B B B B B B B B B B E E E E E E B B B E E E B B B B B B B B B B B B B B B B B B B B B B

Induction 1B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B E E B B B B B B B

RF Probing 0P1 P2 B B P1,P2 B B B B B B B B B B B B B B B B B B B E E E E E E B B B E E E B B B B B B B B B B B B B B B B B B B B B B

Gravity (K2) 2B B B B B B B B B B B B B B B B B B B B B B B ?E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 P1

Obliquity and

Shape0

B B B B B B I1 ?E {or I1} E E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E E

Tidal Amplitude

(H2) and Gravity

(K2)

3

B B B B P1 B B B B B B B B B B B B B B B B B B ?E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B S1 S1

Libration 0B B B B B B E E E E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E E

Complex Species

and Units1

B B B B B B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B E E B E E? B B B B B B B B B E B B E E B B

Simple Species

and Units2

B B B B B B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B ?I2 ?I2 B ?I2 ?I2 B B B B B B B B B E B B E E B B

Complex Species

and Units1

B B B B B B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B E E B E E? B B B B B B B B B E B B E E B B

Simple Species

and Units2

B B B B B B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B ?I2 ?I2 B ?I2 ?I2 B B B B B B B B B E B B E E B B

Complex Species

and Units1

B B E E E B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B E B B B B B B B B B B B B B E B B E B B B

Simple Species

and Units2

B B E E E B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B I2 B B B B B B B B B B B B B E B B e B B B

Complex Species

and Units1

B B E E E B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B E B B B B B B B B B B B B B I2 B B I3 B B B

Simple Species

and Units2

B B E E E B B B B B B B B B B B B B B B E E B B B B B B B B P1 B B B B B B I2 B B B B B B B B B B B B B E B B I3 B B B

Plasma 1,2B B B B B E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B I2 P1 P1 B B B B B B B

Complex Volatile

Species2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B B B P1 P1 B B

Simple Volatile

Species1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B I2 B B I3 I4 E I5 E B B B B B B B P1 E B B

Particulates 1,2B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B P1 B B B B B B

Plasma 1,2B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B I2 P1 P1 B B B B B B B

Complex Volatile

Species1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B B B E P1 B B

Simple Volatile

Species2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B E B B E E E E P1 B B B B B B B E P2 B B

Particulates 1,2B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B P1 P1 E B B B

Complex Volatile

Species1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B B B P1 P1 B B

Simple Volatile

Species2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B I2 B B I3 I4 E I5 E B B B B B B B P1 E B B

Particulates 3

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B P1 B B B B B B

Complex Volatile

Species1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B B B E P1 B B

Simple Volatile

Species2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B E B B E E E E P1 B B B B B B B E P2 B B

Particulates 3B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B P1 P1 E B B B

Baseline

Produce a controlled

photomosaic map of ≥80% of

the surface at ≤100-m spatial

scale[, to map the global

distribution and relationships

of geologic landforms].

Global Surface

Mapping1 Morphology 1

B B B B B B B B E E B B B B B B E E P1 P1 E E B B B B B B B B E B B E E E B B B B B B B B B B B B B B B B B B B B B B

Threshold

Produce a controlled

photomosaic map of ≥30% of

the surface at ≤100-m spatial

scale[, to map the distribution

and relationships of geologic

landforms].

Global Surface

Mapping1 Morphology 1

B B B B B B B B E E B B B B B B E E P1 P2 E E B B B B B B B B E B B E E E B B B B B B B B B B B B B B B B B B B B B B

Morphology 1

E E E E B B B B B B B B B B B B E E P1 P2 E E B B B B B B B B E B B E B B B E B B B B B B B B B B B B B E B B E B B B

Topography 1

B B B B I5 B B B B B B B B B B B P1 P2 I3 I4 B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

Morphology 1

E E E E B B B B B B B B B B B B E E P1 P2 E E B B B B B B B B E B B E B B B E B B B B B B B B B B B B B E B B E B B B

Topography 1

B B B B I5 B B B B B B B B B B B P1 P2 I3 I4 B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

Morphology 1B B B B B B B B B B B B B B B B P2 E P1 E B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B B B B

Roughness and

Permittivity2

B B I4 I4 I4 B B B B B B B B B E E P3 E P2 E B B B B B B B B B B B B B P1 E E B B B B B B B B B B B B B B B B B B B B B B

Threshold N/A N/A N/A N/A N/AB B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

Volatiles 1B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B B P1 I3 E I2 B B B B B B B B B B B B

Particulates 2B B B B B B B B B B P2 I4 P1 I3 B B B B B B B B B B B B B B B B B B E B B B E B B B B B B B B B B B B B B B B B B B B B

Atmospheric

Particulates1,2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B B E B B B

Atmospheric

Volatiles1,2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 P2 B B

Magnetic

Compression1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B I1 B S1 S1 B B B B B B B

Plasma 2B B B B B E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B I3 P1 P2 B B B B B B B

Surface Thermal

Anomaly Search1

Thermal

Emission1

E E E E E B B B B B B B B B E E E E B B B B B B B B B B B B B I2 B P1 P1 P1 B B B B B B B B B B B B B B B B B B B B B B

Deposits 1B B I6 I6 B B B B B B B B B B ?P3 P3 B B B B P1 ?P2 B B B B B B B B I7 B B I8 I8 I8 B B B I4 B B I5 B B B B B B B B E B B E B B B

Surface Changes 2B B E E B B B B B B B B B B B B B B B B P1 P2 B B B B B B B B I3 I4 B I5 I5 I5 B B B I6 B B I7 B B B B B B B B B B B B B B B

Volatiles 1B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B B P1 I3 E I2 B B B B B B B B B B B B

Particulates 2B B B B B B B B B B P2 I4 P1 I3 B B B B B B B B B B B B B B B B B B B B B B E B B B B B B B B B B B B B B B B B B B B B

Atmospheric

Particulates1

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 B B B B B B

Atmospheric

Volatiles2

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B P1 P2 B B

Magnetic

Compression3

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B I1 B S1 S1 B B B B B B B

Plasma 4 B B B B B E B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B I3 P1 P2 B B B B B B B

Surface Thermal

Anomaly Search2

Thermal

Emission1

B B B B B B B B B B B B B B E E E E B B B B B B B B B B B B B I2 B P1 P1 P1 B B B B B B B B B B B B B B B B B B B B B B

Deposits 1B B I6 I6 B B B B B B B B B B ?P3 P3 B B B B P1 P2 B B B B B B B B I7 B B I8 I8 I8 B B B I4 B B I5 B B B B B B B B E B B E B B B

Surface Changes 2B B E E B B B B B B B B B B B B B B B B P1 P2 B B B B B B B B I3 I4 B I5 I5 I5 B B B I6 B B I7 B B B B B B B B B B B B B B B

Radar Infrared Thermal Ultraviolet Magnetic Plasma Impact Mass Spectrometry (IMS)Neutral Mass Spectrometry (NMS) GravityRadar SupportVisible

Baseline

Threshold

Baseline

Threshold

Baseline

Threshold

Baseline

Atmospheric

Composition

Space

Environment

Composition

Space

Environment

Composition

Global

Compositional

Surface

Mapping

Landform

Composition

Landform

Composition

Global

Compositional

Surface

Mapping

Atmospheric

Composition

Characterize the surface at

≤25-m spatial scale, and

measure topography at ≤15-m

vertical precision, across ≥50

globally distributed

landforms[, to identify their

morphology and diversity].

Image the surface at ≤50-m

spatial scale, and measure

topography at ≤20-m vertical

precision, across ≥15

geographically distributed

landforms[, to identify their

morphology and diversity].

Landform

Geology

Landform

Geology

In-Situ Plume

Search and

Characterizatio

n

Remote Plume

Search and

Characterizatio

n

In-Situ Plume

Search and

Characterizatio

n

Remote Plume

Search and

Characterizatio

n

1

1

REASON EIS

VisibleRadar

MISE GRAVITY

Gravity

MASPEX

Neutral Mass Spectrometry (NMS)

PIMS

Plasma

SUDA

Impact Mass Spectrometry (IMS)

UVS

Ultraviolet

ICEMAG

Magnetic

E-THEMIS

ThermalInfrared

(Surface) Pan (Mono) (Surface) Color (Mono)

Surface Activity

Evidence

Surface Activity

Evidence

1

1

1

0

0

1

Local-Scale

Surface

Properties

Search for current activity,

notably plumes or thermal

anomalies.

Characterize the composition

and sources of volatiles,

particulates, and plasma, with

sensitivity sufficient to

identify the signatures of non-

ice materials including any

carbon-containing

compounds, in globally

distributed regions of the

atmosphere and local space

environment.


and sources of volatiles or

particulates, with sensitivity

sufficient to detect the

signatures of non-ice

materials including any carbon-

containing compounds, in


regions of the atmosphere

and local space environment.

Map the vertical subsurface

structure beneath ≥50 globally

distributed landforms to ≥3

km depth[, to understand the

distribution of subsurface

water and processes of

surface-ice-ocean exchange].

Map the vertical subsurface

structure beneath ≥15


landforms, to ≥3 km depth[, to

understand the distribution of

subsurface water and

processes of surface-iceocean

exchange].

Threshold

Baseline

Threshold

Baseline

Baseline

Threshold

Create a compositional map at

≤10 km spatial scale, covering

≥70% of the surface[, to

identify the composition and

distribution of surface

materials].


of ≥50 globally distributed

landforms, at ≤300 m spatial

scale[, to identify non-ice

surface constituents including

any carbon-containing

compounds].

Create a compositional map at

≤10 km spatial scale, covering

≥40% of the surface[, to

identify the composition and

distribution of surface

materials].


of ≥15 geographically

distributed landforms, at ≤25

km spatial scale[, to identify

non-ice surface constituents

including any carbon-

containing compounds].

Search for, image (?), and

characterize [how?] any

current activity, notably

plumes and thermal

anomalies, in regions that are

globally distributed.

Characterize the surface at ~1-

m scale to determine surface

properties, for ≥40 sites each

≥2 km x 4 km.

1

1

1

1

0

ICEMAG

(Surface) Geodesy Pan

(Mono) Belts and

Connections

(Surface) Pan (Mono

Photometry)Terminator Pan (Mono) Limb Pan (mono)Limb Profile Pan (Mono)

1

(Surface) (Pan) Stereo

Ice Shell

Properties

Ice Shell

Properties

1

1

1

1

Confirm the presence of a

subsurface ocean, and

constrain whether the ice

shell is in a “thin” (several km)

or “thick” (10s km) regime.

Constrain the average

thickness of the ice shell, and

the average thickness and

salinity of the ocean, each to

+/-50%.

1Ocean

Properties

Baseline

1Ocean

Properties

Threshold

1

• A primary instrument

(P) is not required in

every row.

• If an approach has no

primary instrument,

then that approach is

considered less

robust.

9/12/17


Primary

Independent

Supporting

Enhancing

In Progress

?

P-STAF Analysis (Still To Come)

18

“Simple” queries to the network include:

• In how many independent ways can each Level 1 be met?

• Which Level 1s have single points of failure?

• If an instrument or observation fails, which Level 1s are not achievable?

• How many paths does an instrument or observation affect?

“Complex” queries to the network include:

• How resilient is each Level 1 to failures?

• What is the impact of a given observation or instrument?

• What is the minimum set (of instruments or observations) necessary to meet a Level 1 or a group of Level 1s?

• Which Level 1s require the most resources to meet?

Robustness

Criticality

Scope

Once the inputs are reconciled and vetted, the P-STAF can be used to determine:

Single Point

Failures

Link Density

of Nodes

Number of

Viable Paths

9/12/17


How the P-STAF Can Inform

Decisions that Affect Science

• P-STAF approach provides a standard format from which Level-1 Science

requirements can be traced, via science themes, to instrument

measurements

• Permits assessment of the contribution (Primary, Independent, Supportive,

and Enhancing) of individual instrument measurements to each Science

Theme, and thus each Level-1 Science requirement

• Provides a decision-tree structure that can aid assessment of the science

impact when considering modifications to the instrument capabilities or

complement

• In making capability trades as may be necessary for cost control, P-STAF

provides a simple and concrete means to evaluate the potential impact to

achieving Level-1 Science Requirements

19 9/12/17


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