December Monthly Status Review (MSR)SCaN Testbed

David Irimies, Project ManagerJanuary 18, 2013

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GRC Project Manager: MSC/David IrimiesChief Engineer: DT/Josh FreehSafety & Mission Assurance Lead: Q/Rick PlastowNASA Customer: SCaN Program/John RushKey Contractor(s): SpaceDOC/ZIN, GESS/Vantage

Project Mission Statement:• SCaN Testbed is an advanced communications lab facility

installed on ISS, which provides the opportunity to develop and advance communications, navigation, and networking technologies in the dynamic operational environment of space

• Develop and demonstrate experiments on ISS that will advance the TRL of Software Defined Radios (SDR) and the Space Telecommunications Radio Standard (STRS) in support of future NASA missions

Project Life Cycle Schedule (Governing NPR 7120.5)

HTV Docked to ISS

Flight System in TVAC

SCaN Testbed Project

Milestones SRR IVR PDR CDR Ph III Safety

SAR ORR Launch Ops On-Orbit Expts

Return Final Report

Actual/ Baseline

5/2008 10/2008 9/2009 4/2010 08/2011 10/2011 6/2012 7/2012 Inc. 32=> 01/2013 N/A N/A

Installedonto ISS ELC

GRC Scope:¨ The SCaN Testbed project is defined as the development,

integration and on-orbit execution of experiments, as well as the operations and maintenance of the SCaN Testbed.

¨ Project closeout will occur no earlier than 2018, or upon Program direction, with SCaN Testbed decommissioning, disposal, and final documentation.

Rev 12/31/13

SCaN Testbed Master Schedule Overview

Rev 1/13/13

On-Orbit Accomplishments

• TDRS HIJ Auto-tracking Issue Resolved

• Antenna Pointing System (APS) Commissioning Re-started, made significant progress– The ops team averaged over three events a day and the APS algorithm

appears to be robust.– APS ops to continue thru January

• STB has proven value in advancing TRL of SDR technology

• STB has proven value in vetting operational SN assets (TDRS HIJ auto-track)

• STB plans to further prove value in vetting operational SN assets – TDRS-K, then TDRS-L and TDRS-M and SGSS in out-years

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• Experiments 1a and 1b (GD and JPL S-band SDR Technology Advancement)– 1a (GD):

• 1st BER Curve completed on ISS - looks great! (see next chart)• Completed Verification Test Review (VTR) for GD Commissioning on 12/11/12

– 1b (JPL): • Completed ~40 S-band captures in support of JPL EM characterization report.

Still working on the post-processing algorithm.

• Experiment 2 (S- and Ka-band SDR Technology Advancement)– Completed Verification Test Review (VTR) for Harris Commissioning on

12/11/12– Drafted procedures for Commissioning Tests

• Experiment 3 (Baseline Networking & Routing)– Developed experiment plan and detailed execution/development schedule,

currently in Project review– Experimental Front End Processor to Experiment #3 Gateway Interface

drawings completed and distributed for review

Experiments Status

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First On-Orbit GD BER Curve

• Good replicate of ground data

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• Experiment 6 (Bandwidth Efficient, High-Rate WF at Ka-Band)– Constructed interface (connectors, cabling and a few parts) for

Experiment 6 to connect to the Harris breadboard in the Technology Verification Lab (SDR lab)

– Creating an experiment plan to address future development and operations

– Placed several procurements for experiment development support equipment.

– Precursor to Cognitive Expt #15 in out years

• SBIR Experiment 8 (SBIR Phase 2)– CommLargo awarded a SBIR-2 to continue developing

scintillation-hardened GPS for STB (open source GPS)

Experiments Status

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General Experiment Support Activities

• Experiment Support for JPL GPS Experiment #4– JPL PI reviewed initial Ground Integration Unit (Engr. Model) L5 GPS captures

and has identified a concern on the L5 signal – appears lower than expected. – The GRC STB team troubleshot the L5 signal level on the GIU GPS

• L5 GPS signal was about 20db less than the L1 and L2 GPS signals at the GIU

– JPL PI specified alternative L5 antenna and support equipment, which STB generated work order, process plan and CR

• Completed the following documents for project review (RRB Milestones):– JPL EM Characterization Report (RPT-0952)– Harris FM Databook (RPT-0950) – see plot on next chart– GD EM Characterization Report (RPT-0954)

• Working on antenna characterization post-processing routines.• Restarted WSC SDR work

– New GSFC lead and technical team members fully staffed and on board– WSC SDRs that will be delivered at GRC and WSC will be long-term solution

to receiving direct C/No measurements– Rework schedule for the delivery of the radios to GSC and WSC – delivery to

GRC and WSC by end of FY13 8

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Harris GIU Char vs Flight

WF ID 340: 12.5 Mbps, uncoded

TDRS-K Checkout (Expt 25a)

• Completed review and baselined Experiment Plan – both STB and TDRS-K projects– TDRS-K Launch set for 1/29/13

• Expt 25a Overview:- Program track / autotrack on both STB and TDRS-K- Demonstrate that TDRS-K can acquire and successfully autotrack a Ka-band user in low

Earth orbit. - This will be the first test of autotrack service with an orbiting customer during in-orbit

checkout- Provide test-as-you-fly data not captured in the L5 autotrack test procedures executed

by Boeing- STB offers unique in-orbit Ka-band user to verify KaSA services and autotrack

requirements that are called out in TDRS-K Test Plan

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General Accomplishments & Outreach

• Briefed SCaN Program on CoNNeCT Lessons Learned and Cost Performance

• Staffed the SCaN Testbed booth at NASA Technology Days (11/28 – 11/30)

• Wireless Innovation (SDR) Forum: Keynote address, STRS subtopic, 2 technical presentations, Washington, DC – January 7-10, 2013– Rich Reinhart, Keynote Speaker– Jennifer Nappier, Paper/presentation on GD Automatic

Gain Control work– Sandra Johnson, STB / STRS sessions and staffing

STB booth 11

Technical Issues in Work

• STB Front End Processor (SFEP) Anomaly – Critical Path in Comm’n– Progress: identified root cause (interface between WSC SFEP and

WSC Low Rate Data Switch)– Verifying operational workaround– Established decision gate and timing of decision for fixing root cause

–versus– executing operational workaround

• Pre-Commissioning dry-run (on-orbit) and planning activities with WSC– Ongoing coordination of equipment logistics– STB personnel will travel to WSC to temporarily install equipment in

STB racks to obtain TDRSS/WSC received power measurement– TDRSS/WSC received power measurement is success criteria to

Commissioning

• ISS MiPROM pitch – to extend manifest (see Risk #2)12

Upcoming Events

• ISS MiPROM (Multi-Increment Payload Resupply and Outfitting Manifest) Working Group – January 23, 2013 (tentative)

– STB Presenting to extend manifest and delay decommissioning from 2015 to 2018 (see Risk chart, Risk #2)

• JPL commissioning VTR: 1/15/13

• Code Review for JPL WF Update: 1/29/13

• SDR Commissioning: thru February

Status Rev 1/15/13 Cost Schedule Technical MgmtCurrent Month G Y G Y

Prior Month G Y G Y

Stoplight Status and Explanations

CURRENT MONTH EXPLANATIONS

Mgmt Issue / Impact Action Plan Resolution

Date

Y

Workforce Shortages in RF, Comm., and Mission Ops due to lack of GRC personnel avail.

1a. Slipped FY13 schedule: baseline dates in ( ) • Antenna Characterization ops - end of Nov. (mid-Nov)• Commissioning ops - end of February (mid-Jan)• Expt 2 (Harris Ka-band) – end March (mid-March)

1b. Seeking Code D/R CS lead and support roles• Restore full-time support of existing comm. personnel • RF / Comm. Sys. SME• Experiment Principal Investigators• Waveform SW & FW (Complex Elect) devel.• Comm. Data Analysis• Project Scientist liaisons for external experimenters

1c. Project in parallel pursuing SSC lead and support roles thru existing SSC responsible for SE&I and Mission Ops

1a. Continual

1b. Continual

1c. In work (2 SSC Mission Ops backfills)

SCaN Testbed Top Project Risks

5

4

3

2

1

1 2 3 4 5

LIKELIHOOD

CONSEQUENCES

LxCTrend

Rank Approach Risk Title

1 MOut-Year Funding Profile Insufficient to Execute Project

2 M Premature STB Disposal by ISS

3 M Experimenter SW Interface (API)

ApproachM – MitigateW – WatchA – AcceptR – ResearchC – Closed

Criticality

Decreasing (Improving) Increasing (Worsening)è Unchanged

N New

L x C Trend

High

Med

Low

1

3 2

STATUS AS OF: 1/9/13

Rank Consequence(s)

1

Given an out-years (FY14+) resource shortage, there is a possibility that:

•STB Experiment integration and operations will stop

•Progress on experiment development will be slow

•Low contribution to the STRS repository

2

Given an ISS disposal schedule of April 2015, there is a possibility that

•Experiments in development will not be executed on-orbit

•Payload will be underutilized

•Low contribution to the STRS repository

3

Given a lack of an Experimenter API, there is a possibility of:

•STB unable to accommodate external Experimenters

•Increased development time for all Experimenters

Back Up

CoNNeCT Success Criteria

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Level 1 Objective

Success Criteria

3.2 SDR Technology Development

Primary Technologies: Core SDR Capabilities– STRS/SDR Development: 3 flight radios implementing STRS Std– SDR TRL Advancement: 2 radios demonstrated in space TRL 7– SDR Reconfiguration: regular operational reconfiguration, not ad-hoc– S-band Communications: standard capability for comparison

3.3 Validation of Future Mission Operational Capabilities

Secondary Technologies: Mission Applications - somewhat riskier, depends on external factors (e.g. GPS, TWTA) too

– Ka-band Communications: high speeds for SDR– GPS Navigation: L1,L2,L5 in shared platform– Networking/Routing: basic capability needed for future missions

3.1 ISS National Laboratory

Basic Test Bed Capability: Needed for Experiment Program– Ground-based SDR System for Future WF Development: needed to

develop/test future waveforms because the flight unit is in space– Avionics Software Reconfiguration: needed for experiments– Data Storage/Data Retrieval: get data to/from memory/file system

CoNNeCT Success Criteria

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Primary Technologies Secondary Technologies Basic Test Bed CapabilitySTRS/SDR DevelopmentOperate at least two STRS-compliant SDRs in the space environment to demonstrate the STRS Architecture (v1.02) has achieved TRL-7.

Ka-band CommunicationsOperate an STRS-compliant SDR in the space environment at Ka-band with TDRSS with at least 6 Mbps forward link and 100 Mbps return link…understand performance

Ground-based SDR Subsystem for future WF DevelopmentDemonstrate that the ground-based SDR system is sufficient to verify and operate flight software/firmware by successfully operating a new waveform software …

SDR TRL AdvancementOperate at least two SDRs… and understand performance of S-band or Ka-band communication links…at least two SDRs have achieved TRL-7.

GPS NavigationDemonstrate GPS/SDR/STRS receiver …in a space environment by simultaneously tracking L1, L2 and L5, generating on-board navigation solution…,

Avionics Software ReconfigurationUpload experiment software to the avionics subsystem from the CoNNeCT Control Center after launch and validate its reception and operation.

SDR ReconfigurationUpload software and/or firmware from the CoNNeCT Control Center or avionics, to at least two SDRs on-orbit, multiple times (routinely operational and CM’d)

Networking/RoutingRoute data through the avionics received from at least one SDR RF link to the avionics or SDR destination using the network layer (e.g. IP or DTN) address of the received data stream.

Data Storage/Data RetrievalStore the data received from at least one SDR RF link into memory of the avionics or an SDR and then retrieve the stored data from memory and send it over an SDR transmit RF link…

S-band CommunicationsOperate an STRS-compliant SDR …at S-band with TDRSS with at least 72 kbps forward link and 192 kbps return link and understand performance

Satisfied by Checkout & Commissioning Satisfied by Experimentation

> > We need Experiments to satisfy project criteria < <

Mission Success Criteria Assessment

Mission Success Criteria Assessment

Mission Objectives from the Level 1 Requirements

• ISS NATIONAL LABORATORY– Reconfigure SDR (e.g. OE updates, modulation, coding, framing, filtering, network)

• bit streams to arbitrary link layer protocols– Load/run/reconfigure experimenter software applications external to SDRs (flight

computer)• On-board networking (e.g. DTN), routing, and security applications• Avionics capacity (e.g. processor, memory) , access to payload information (lock state , AGCs, etc.)

• SDR TECHNOLOGY DEVELOPMENT – SDR platform hardware & waveform firmware/software compliant to STRS, TRL-7– Promote development and Agency-wide adoption of NASA’s SDR Standard, STRS– Separate SDR HW, SW performance from space/link effects (e.g. SEE)

• VALIDATION OF FUTURE MISSION OPERATIONAL CAPABILITIES– Capability representative of future missions

• Data rate, performance, networking/routing, GPS frequencies, timing– Understand SDR performance (reliability, SEE, telemetry, instrumentation)– Multiple and simultaneous RF Links (Ka-band, S-band, L-band/GPS)

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Level 1 Requirement Assessment

• SCaN Testbed has 27 Level 1 Reqs - science type “wills” and “shalls”

• 19 requirements can be met with current funding – Basic S-band connection to TDRS and direct to ground– Basic Ka-band connection to TDRS– GPS L1, L2, and L5, etc . . .

Level 1 Requirement Assessment

• 8 Requirements (Experiments) need additional $ to meet the Level 1 Reqs– Delay Tolerant Networking (DTN)and Internet Protocol (IP) routing: More experiment

development, SW and Expt Integration– Testbed capabilities available to industry: More SW, Expt Integration, and Expt Dev– Demonstrate various levels of compliance with STRS: More Expt development– Develop library of software devices that have legacy value: More Experimenters, SW

and Comm support – Demonstrate Comm, Nav, and networking technologies: More than a single

experiment– Ground based system used for testing and upload of new waveforms: More

Experiment Development System support– TDRS Augmentation Service for Satellites (TASS): Funded in FY15/16 at JPL

• Additional funding needed to develop experiments and the infrastructure (SW and integration) to support them.

Risk TypeSub Risk

Type1 2 3 4 5

 Safety

PersonnelMinor injury not

requiring first aid treatment.

Minor injury regarding first aid

treatment.

Medical treatment for a minor injury,

illness.

Permanent or major injury, illness or incapacitation.

Death

Flight Systems N/A N/AMinor damage to

flight systems.Major damage to

flight systemsLoss of flight assets.

Ground Facilities/

Equipment

Negligible damage to Non-Critical

ground facilities or systems.

Minor damage to Non-Critical

ground facilities or systems.

Moderate damage to critical ground

facilities or systems. -Or-

Loss of Non-critical

Major damage to critical ground

facilities or systems

Loss of critical ground facilities or

systems.

Technical

Requirements

No impact to meeting

performance and/or other mission

objectives.

L4 requirements and/or other

mission objectives cannot be met.

L3 requirements and/or other

mission objectives cannot be met.

L2 requirements and/or other mission objectives cannot be

met.

L1 requirements and/or mission

objectives cannot be met.

OperationsNegligible impact to mission objectives/

operations

Minor impact to mission objectives/

operations -workarounds

available.

Moderate impact to mission objectives/

operations.

Major impact to mission objectives/

operations -workarounds not

available.

Unable to achieve major mission

objective/operations.

Cost   <$50K $50K - $100K $101K - $250K $251K - $500K >$500K

 Schedule  2-4 week delay to

major project milestone.

1-3 month delay to major project

milestone.

3-4 month delay to major project

milestone.

4-6 month delay to major project

milestone.

>6 month delay to major project

milestone.

LIKELIHOOD RATINGLikelihood Value RangeVery High 5 76% - 99%

High 4 51% - 75%Moderate 3 26% - 50%

Low 2 11% - 25%Very Low 1 0% - 10%

TIMEFRAME

Time to Initiate Handling Strategy

Near 0 to 1 Month

Mid 1 to 3 Months

Far >3 Months

SCaN Testbed Risk Scorecard