Grubbs, Rodney

Lippincott, Jeff

NASA Technical Reports Server

NASA MSFC
Mission Operations Laboratory
MSFC
MSFC
NASA MSFC
Mission Operations Laboratory
NASA DTN Overview
MSFC Roles & Responsibilities for ISS DTN
MSFC Approach & Plans for DRTS Testing
Rodney Grubbs
MSFC Mission Operations Lab
Marshall Space Flight Center
Alabama, USA
NASA/JAXA DTN DRTS TIM
https://ntrs.nasa.gov/search.jsp?R=20130001811 2019-08-30T23:39:44+00:00Z
MSFC
JSC
JPL
APL
GSFC
SN DSN NEN
ISS 
Payload 
Users
Objectives: NASA Space DTN Project 
1. Mature DTN via ISS testing and use results 
to automate ISS Payload and Core 
operations (AES)
2. Continue Core Protocol development 
(SCaN)
3. Increase automation of current and 
upcoming point‐to‐point LEO and deep 
space mission operations
4. Lay DTN foundation for future 
internetworked space operations
Reduce Mission Operations costs
Increase 
mission data 
return
ISS International Lab
Mission Support
Networks
ESA
JAXA
Enhance international
interoperability
Enable 
repurposing of 
spacecraft for 
future  DTN 
relay support
Provide  secure, 
accountable end‐end 
data transfer with 
multiple Qualities of 
Service
Facilitate 
networked 
sensor webs
DTN Core Team 2
• The Project will be managed and executed jointly by the SCaN Technology Program 
and by the Advanced Exploration Systems office (AES) at NASA-HQ:
• SCaN’s role in FY13 will  be to continue to support the protocol development 
and international standardization aspects of the DTN suite for NASA:
• SCaN will fund the DTN Core Team activities
• CCSDS Blue Books: ‘LTP for CCSDS’; ‘BP for CCSDS’ – the  core DTN protocols - are nearly 
complete
• Solar System Internetworking Architecture document is complete
• Key elements of the full DTN suite (routing, network management, security, key management, 
etc.) required to operate a space network are in early stages of development and their 
development will be funded by SCaN
• DTN Project Focus in FY13 is Network Management and Security
• Draft CCSDS Green Book on ‘Network Management Concept of Operations’ in work
• AES will  take over the ISS test, demonstration and infusion activities for 
Human Space Flight:
• All DTN flight test and demonstrations using the ISS or Human Space Flight Systems
• MSFC will gradually assume responsibility for interfacing with payload customers and 
conducting flight development and demonstration activities
• The University of Colorado will be retained in a consulting role during and after this transition.
NASA DTN Project for FY13
3
Public Affairs/Communications
Legislative Affairs
General Counsel
Int’l/Interagency Relations
Chief Engineer
Safety & Mission Assurance
Chief Health & Medical Officer
Chief Scientist
Chief Technologist
Human Exploration and Operations Mission Directorate Organization
Mission Support 
Services Office  
CI       
Resources 
Management 
Office             
CH
Strategic Analysis
& Integration
Division 
CL
• Architecture studies  & analysis
• Mission analysis
• Risk and requirements 
coordination
• HR
• E & PO
• IT
• Mgt processes & 
internal controls
Associate Administrator 
Deputy Associate Administrator 
Deputy AA for Policy & Plans   
CAO00
Space 
Comm & 
Navigation 
Division
CG
Launch 
Services 
Office
CF
ISS
• System O&M
• Crew & Cargo 
Transportation 
Services
CJ
Advanced 
Exploration 
Systems
• AES 
• Robotic 
precursor 
measurements
CQ
Exploration     
Systems 
Development
• SLS      
• MPCV
• 21st Century 
Ground 
Systems 
CM
Human 
Spaceflight 
Capabilities
• Core Capabilities
• RPT 
• SFCO
• MAF
• MOD
• EVA
• CHS
CN
Commercial 
Spaceflight
Development
• Commercial 
Crew
• COTS
CP
Space 
Shuttle
CK
Space Life & 
Physical 
Sciences 
Research & 
Applications
• HRP
• Fund. Space Bio
• Physical Sciences
CR
ISS Nat’l Lab Mgt.
DTN’s home in AES
DTN’s home in SCaN
4
SCaN Organization Chart
DTN’s home in SCaN To HEOMD org. chart
5
Advanced 
Exploration Systems 
Division
Director: J. Crusan
Deputy Director: C. Moore
Admin Support : L. Drayton
SBIR 
Manager
M. King
AES Integration 
Manager
J. Joshi
Crew 
Mobility 
Systems
Lead: M. Lee
Vehicle 
Systems
Lead: J. Warren
Habitat 
Systems
Lead: B. Epstein
Robotic 
Precursor 
Activities
Lead: V. Friedensen
Scientist: M. Wargo
 Domain Integration Fire Safety
 SBIR
 MMSEV
 EVA
 Suitport
 Nuclear CPS
 Morpheus VTB
 ALHAT
 Modular Power Sys.
 Deep Space Hab
 Water Recovery
 Atmos. Recovery
 Logistics Reduction
 RadProtection
 Autonomous Mission Ops.
 DTN
 Common Avionics
 Core Flight Software
 Integ. Ground Ops.
 Goldstone NEO
Radar
 RESOLVE
 JRPA
 OCT Interface
 ISS Program 
Integration
DTN’s home in AES
Operations
Lead: R. McGinnis
r ti
: . c i is
Advanced Exploration Systems Organization Chart
6
New NASA DTN Project Management Structure: 
Jointly Managed by SCaN and AES
NASA DTN Project
NASA Core
Engineering
Team
International ISS DTN Lab Projects
AES
SCaN
Ed Birrane/APL
Kevin Gifford/CU
Phil Paulsen/GRC
Dave Leucht/GSFC
Jay Wyatt/JPL
Adam Schlesinger/JSC
Mike Kearney/MSFC
AES: oversees all NASA DTN flight test and 
demonstration activities conducted on the ISS:
• NASA formal Point of Contact:
Richard McGinnis, NASA-HQ
SCaN: oversees all NASA DTN protocol 
engineering, development and validation activities, 
including international standardization:
• NAS formal Point of Contact:
John Rush, NASA-HQ
AES Sponsor:
Rich McGinnis
SCaN Sponsor:
John Rush
DTN Project 
Development Manager:
Adrian Hooke
DTN Project
Execution Manager:
Jay Wyatt
DTN Chief 
Engineer:
Keith Scott
NASA Center 
Reps
7
8
TReK Team
9
Human Space 
Systems & 
Utilization (JEM)
• JEM flight 
experiment 
planning and 
operations
ISS Payloads Office 
(OZ)
• Payload, 
operational, 
planning, & ISS 
network impacts
NASA
Sponsorship
Letter
CU‐Boulder ISS Operations
• Test Planning
• ISS network coordination
• Support Ground testing 
• Support Flight testing by 
providing CGBA‐5 DTN 
node operation & tech 
support
• DRTS planning
• JEM resource planning
• Operation of JEM network 
system for DTN testing
• Test Planning
• Provide JAXA TKSC DTN node
• Lead and Conduct DTN Testing  by: 
‐ operating DTN node at TKSC
‐ providing and operating DRTS link
NASA ISS Payload 
planning, integration, 
and verifications 
activities:
• CGBA‐5 DTN 
Gateway resource 
planning
• Operation of USOS 
network system for 
DTN testing
• Test Planning
• Oversee NASA‐side DTN 
testing by coordinating 
with  ISS Payload Office 
and  CU
JAXA/NASA Project Relationships:
Ground and Flight Testing
JAXA NASA‐HQ
JAXA/NASA
Technical 
Understanding
Consolidated Space 
Tracking and Data 
Acquisition
JAXA/NASA 
Technical 
Framework
JAXA‐NASA 
Letter of 
Agreement
NASA Space 
DTN Project:
AES and SCaN
DTN 
Test 
Plan
DTN 
Test 
Report
NASA/JAXA 
DTN Project 
Plan
NASA Space DTN 
Testing Lead ‐
Marshall Space Flight 
Center (MSFC)
10
JAXA NASA‐HQ
JAXA/NASA
Technical 
Understanding
Consolidated Space 
Tracking and Data 
Acquisition
NASA/JAXA 
Technical 
Framework
NASA Space DTN 
Testing Lead ‐
Marshall Space Flight 
Center (MSFC)
DTN 
Test 
Plan
DTN 
Test 
Report
• Provide JAXA TKSC DTN node
• Lead Test Planning
• DRTS Planning 
• Lead and conduct DTN Ground 
Testing by:
• operating DTN node at TKSC
• providing and operating DRTS links
• Lead writing of Test Report
JAXA/NASA Project Relationships
JAXA‐NASA 
management 
authorization to 
proceed
NASA/JAXA 
DTN Ground 
Test ‐Project 
Plan
• Provide NASA TKSC DTN node
• Support Test Planning
• Support DTN Ground Testing 
by: 
• operating NASA DTN node 
at TKSC
NASA Space 
DTN Project:
AES and SCaN
11
MSFC DRTS Testing Approach
Jeff Lippincott
MSFC Mission Operations Lab
General Approach & Plans
• Work Prior to NASA/JAXA Meeting in November 2012
– Installed IOS 3.0.2.
• Worked through Tutorials.
• Modifying tutorial and example configuration files to implement single and multi‐node configurations for learning 
purposes.
• Working with DTN Apps:  bping, bpcp, bpchat, cfdptest, and bss.
– Reviewed Previous Test Plan provided by JAXA.
• Work After NASA/JAXA Meeting in November 2012
– Assist JAXA with test plan development by participating in the iterative update/review process.
– Perform any tasks necessary to procure and configure the computers to host NASA DTN Nodes.
– Develop the NASA DTN nodes at NASA/MSFC facility and conduct both NASA‐internal testing in a lab 
environment and external (NASA<‐>JAXA) ground testing.
• NASA would like to invite JAXA to participate in the informal external ground tests identified.  (Details on following page).
– Configure the NASA DTN nodes at NASA/MSFC in preparation for tests in partnership with JAXA at MSFC in 
April 2013.
– Configure the NASA DTN nodes at NASA/MSFC for Ground Testing and conduct tests in partnership with 
JAXA over the Internet.
– Bring NASA DTN nodes to Tsukuba for conducting the DRTS space‐link testing of DTN data protocols in 
partnership with JAXA, work  with JAXA to install and configure the NASA DTN nodes at JAXA for Ground 
Testing over DRTS with DSS, conduct tests in partnership with JAXA , and bring the NASA DTN Nodes back to 
NASA after the test.
– Evaluate the DTN testing result in partnership with JAXA.
13
JAXA-NASA DRTS Test Schedule
NASA status
ISS/DRTS flight testing
JAXA preparation 
including  test configuration development and internal testing
Budget planning for  JFY2013
JAXA status 
Budget planning for USFY2013
Joint demo @MSFC
DRTS/DSS testing @TKSC
JAXA internal testing for Ground testing
Joint activities MSFC visit to TKSC
Ground testing
Ground testing (Phase‐2) & DRTS/DSS testing
2012
Apr May Jun Jul Aug Sep Oct Nov Dec
2013
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
2014
We are here now!!
JAXA internal testing for DRTS/DSS testing
Inputs from TReK
Informal ground testing (MSFC proposal)
Continuation of JFY2012 activities &
preparation for ISS/DRTS flight testing
CCSDS Tech. WG@US
CCSDS Tech. WG@Europe
Note.
End of DRTS mission life is 
foreseen in Mar. 2015 
because of the remaining 
DRTS’s fuel quantity.
14
Test #1 Test #2 Test #3
NASA preparation including DTN node development
NASA Proposed Informal Internet Ground Test Concept ‐ Summary
15
Informal Ground
Test #1
Informal Ground
Test #2
Informal Ground
Test #3
Test
Purpose
Connectivity Test (Ping)
Initial Configuration Test
Streaming
Configuration Test CGR Configuration Test
Proposed
Date
Plan: January  16, 2013
Test: January 30, 2013
Plan:  February 13, 2013
Test:  February 27, 2013
Plan:  March 13, 2013
Test:  March 27, 2013
DTN node NASA: one ground nodeJAXA: one ground node
NASA: one ground node
JAXA: one ground node
NASA: multiple ground nodes
JAXA: multiple ground nodes
Protocols CFDP/BP/LTP BP/LTP CFDP/BP/LTP
DTN Routing None None CGR
DTN App. bping, bpchatcfdptest, bpcp bssrecv, bssStreamingApp
bping, bpcp,bpchat, cfdptest,
bssrecv, bssStreamingApp
• NASA plans to perform the informal ground tests identified above prior to the joint Demo scheduled in Spring 2013.
• All of the tests are planned to be disruption free.  
• The purpose of the tests is to incrementally build confidence in test configurations and DTN Node functionality.
• NASA will develop and provide a Test Configuration prior to each test.
• NASA would like to invite JAXA to participate in these tests.  Participation would help to reduce risk for future test 
activities.
• All Tests would be conducted during the following time on the dates identified:  JAXA 8:00 a.m.– 10:00 a.m./NASA 
6:00 p.m.– 8:00 p.m.
• In the Proposed Date row, the “Plan” is the date the test configuration would be available, and the “Test” is the date 
the test would be conducted.
Test Items
Test configurationLarge file 
transfer BSS CGR
Joint demo
Conducted
with CU‐Boulder .
Apr. & Aug. 2011
Spring 2013@MSFC 
To confirm connection and basic 
DTN functions before 
commencing formal testing.
Ground 
testing
Phase‐1
Completed with 
CU‐Boulder.
Dec.‐Jan. 2012
Phase‐2, June 2013
To confirm DTN functions 
simulating S/C operation 
scenarios
DRTS/DSS 
testing
August 2013@ TKSC
To confirm DTN functions under real DRTS space‐link 
environment and DRTS operation scenarios
ISS/DRTS 
flight testing
After JEM/ICS recovery
To confirm DTN functions connecting NASA DTN node 
onboard ISS with JAXA node@TKSC through DRTS 
space‐ link.
Test Concept
16
JAXA node NASA node
JAXA nodes NASA nodes
Internet
DRTSJAXA nodes NASA nodes
DRTS
JAXA nodes NASA node
ISS


NASA/JAXA DTN DRTS TIM

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