1PFP MSR, 11/17/2009

Particles and Fields PackageMonthly Status Review (MSR)

November 17, 2009

Dave Curtis, PFP PM

2PFP MSR, 11/17/2009

SSL Contracting Status

• Phase C/D Proposal Submitted• No Cost Extension to Phase B in place• Still waiting on final ~$70K of Phase RR contract• Continuing work using remaining Phase B $

– Completing Phase B work– Should last into November

3PFP MSR, 11/17/2009

Schedule Status

• Started work modifying PFP part of IMS– Clean up issues with 1 month acceleration since CSR– Clean up linkages so that all links outside PFP and between institutions are at

the top• Project milestones• LM REC-DELS• Internal PFP REC-DELS

– Clean up LPW work into separate LASP and SSL parts– Cleaned up SWIA schedule so it is no longer coupled to SWEA– Updating STATIC schedule to reflect work done– Moved SSL EEE Parts purchases into a separate section (Now done by GSFC)– Waiting on inputs from CESR on their part of SWEA schedule– Need to link in LM REC-DELS

• Issues with schedule– LM REC-DELs lists PFP deliver 2.5 months earlier than CSR version

• Do I take this out of my schedule margins?• LM indicates they need STATIC first – should we consider delivering that separately?

– LM EM I&T schedule is early• After EM PFDPU (less instrument interface cards) Integrated and tested• Before instruments integrate with EM PFDPU• Should be adequate for planned test

• Schedule meetings 18/19 should lock down key milestones– May impact PFP schedule

• Full time SSL scheduler planed to start up in January

4PFP MSR, 11/17/2009

Manpower

• Still in the ‘bathtub’, ~7 FTE• Plan to start ramping up December 1.

– Should be ~19FTE by January– Mostly from existing personnel– A few new hires planned

5PFP MSR, 11/17/2009

Accomplishments

• Supported SWG (and schedule splinter)• SEMP Draft in review• SWIA Instrument Spec Draft in review• STATIC, SWIA FPGA specifications complete• Selected hardware and software for GSE

– Spacecraft simulator GSE hardware in layout– PFDPU simulator hardware candidate purchased

• Requires FPGA programming

– Plan to use GSEOS software • COTS• RBSP heritage

• Updated mass requirements based on STATIC design work– Since SWIA looks like STATIC, SWIA updated also

• Provided updated STATIC, SWIA Solidworks models to LM• Updated ESC Requirements document

6PFP MSR, 11/17/2009

Ongoing Work

• Supporting Project planning process• Supporting ERD, ICD development• Supporting MAG, ESC, Payload, SDT working groups• Preliminary SSL MAIP, SDP, Parts list provided

– Waiting on comments• Work on PFP SEMP, CMP, RMP in progress (CDRLs)• Identifying staff and starting hiring process for new hires• Updating Master PFP Schedule• Level 4/5 requirements in work

– Instrument specifications (Instrument leads)• First drafts due the end of November

– Flight Software Requirements– Instrument FPGA Requirements

• STATIC, SWIA first drafts complete– Power Converter Requirements

• Draft complete• STATIC prototype in integration

– Hope to have it in the chamber next month– Determine pressure (density) danger limit

• STATIC RAM density enhancement modeling– Important in determining how low into the atmosphere STATIC can operate– Hope to be done by the end of the month

7PFP MSR, 11/17/2009

Ongoing Trades

• Second STATIC under consideration– Non-redundant, Mission critical instrument– Identical copy relatively inexpensive

• SSL should be able to stay under the $20M EVM cap threshold– If operated simultaneously, enhances science, depending on location

• Mechanical attenuator for STATIC, SWIA– Enhanced dynamic range– Science justification presented at SWG

• Faster preamps for SWIA– Enhanced dynamic range– SWIA justification presented at SWG– Adds ~0.5W for SWIA

• PFDPU processor selection trades– Heritage vs processing margins and ease of development

• LPW trades – to be discussed at LASP MSR• Software/Hardware Trades

– Determining how much of data processing done in instruments, how much by PFDPU FSW

• Science Actuator switching architecture (SEP attenuator, EUVM door, etc)

8PFP MSR, 11/17/2009

Top Risks

MAVEN PFP RISK MANAGEMENT Chg RANK ID Approach TITLE

1 P-04 Research Solar Array Magnetics

55 10 15 20 25

2 P-01 Watch SSL Manpower

44 8 12 16 20

3 P-03 Watch Technical Resource Margins

33 8 9 12 15

4 P-02 Watch SSL MAIP, SDP

22 4 6 8 10

5 P-05 Mitigate Sun in SEP FOV

11 2 3 4 5

6 P-06 Research HV Arc during deep dip

1 2 3 4 5

Criticality Approach

High

Medium

Low

LIKELIHOOD

Improved

Worsening

Unchanged

New this month

Mitigate

Watch

Accept

Research

CONSEQUENCES

L * C Trend

*

P1

P2

P4

P3P5

P6

9PFP MSR, 11/17/2009

Risk List

MAVEN PFPCURRENT RISKS

MAVEN_PF_SYS_011_RiskList_20091117ID Title Type P I Crit Risk Statement Impact Term Plan Approach Comments

P-01 SSL ManpowerProject

Execution3 3 M

Delays in RBSP leads to manpower conflicts at SSL

Schedule erosion, cost to recover

Mid Term

Hire new people to take routine tasks off key personnel

Watch Review in March 2010

P-02 SSL MAIP, SDPProject

Execution4 2 M

Disconnects between MAR and SSL MAIP or Software Development Plan result in cost increases, potential technical risk due to distraction of key personnel

Cost Mid Term

SSL MAIP, SDP review by Project

Watch Pending Project Review

P-03Technical Resource Margins

Project Execution

2 4 M

Requirements flowdown and preliminary design results in instrument resource growth

Mass, Power Mid Term

Proceed with specifications and design, watch resource requirements

Watch

P-04Solar Array Magnetics

Mission Performance

3 4 M

Proximity of MAG sensor to solar arrays results in not meeting the magnetics requriements

Magnetics [MRD84]

Far Term

Analyze Juno test panel performance. Consider ways to increase distance between MAG and cells

Research

P-05 Sun in SEP FOVMission

Performance2 3 L

Sunlight in SEP FOV can damage the detector

Loss of part of the SEP measurement

Far Term

Design sun safing into spacecraft and instrument

Mitigate Mitigation scheme not fully defined

P-06HV Arc during

deep dipMission

Performance2 3 L

HV discharge in SWEA, SWIA, or STATIC during deep dip

Potential loss of instrument

Far Term

Power off instrument HV for deep dip or when pressure exceeds threshold or in SAFE mode

Research Science justificastion for keeping STATIC on during deep dips. Schemes to automatically safe based on pressure measurement on board in review

10PFP MSR, 11/17/2009

PFP Mass

• Updated STATIC, SWIA Masses– Based on STATIC prototype actuals and CAD models– STATIC decreased, SWIA increased, no significant change in total NTE

from CSR values– Includes mechanical attenuator in STATIC and SWIA– Does not include second STATIC

• Current project NTE is 29.29kg– Was in MRD and PFP FRD, not yet in ICD

• Liens:– 0.3kg for 7m LPW booms (increase 150g/boom from 6m booms)

Instrument QuantityCBE Each

[kg]CBE

Total [kg] Cont. (%)Total [kg] (CBE+cnt)

Particles and Fields 21.19 24% 26.20LPW Total 5.15 20% 6.18

LPW Booms 2 4.850 20% 5.820EUV Assembly 1 0.300 20% 0.360

STATIC Total 2.35 30% 3.05SWEA Total 1.62 20% 1.94SWIA Total 2.06 30% 2.67SEP Total 1.23 20% 1.47MAG Total 0.65 20% 0.78PFDPU Total 4.78 20% 5.74PF Intra-Instrument Harness Total 3.36 30% 4.37

11PFP MSR, 11/17/2009

PFP Power

• SWIA increased ~0.2W since CSR– had neglected to add extra HVPS, preamps compared to SWEA– Does not include faster preamps

• STATIC increased ~0.7W – Had not included power for digital interface

• Current ICD NTE is 22.75W (compared to 23.03 CBE+AGM)• Liens: SWIA ~0.5W for faster preamps [in study]

Particles and FieldsOff (heater only) 7.61 25% 9.54

Standby 11.23 24% 13.92Nominal 18.71 22% 22.90

Peak 29.14 23% 35.82Orbit Average 18.81 22% 23.02

Orbit Average:LPW/EUV 4.37 20% 5.24STATIC 4.42 30% 5.75SWEA 0.96 20% 1.16SWIA 1.19 20% 1.42SEP 1.88 20% 2.26MAG 3.03 20% 3.63PFDPU 2.96 20% 3.56

2009-10-28

12PFP MSR, 11/17/2009

PFP Data Rate

• Per 2009-6-9 allocations from Bruce

Rate [bps]Particles and FieldsLPW/EUV 717.0STATIC 2000.0SWEA 600.0SWIA 604.0SEP 160.0MAG 660.0PFDPU 30.0

Total 4771.0

Instrument