The document summarizes architecture diagrams and documents for NASA's Space Communications and Navigation (SCaN) networks. It provides an "as-is" architecture diagram capturing SCaN's legacy networks. It also details diagrams for specific missions, including Constellation Orion missions to the International Space Station and proposed lunar missions. Finally, it outlines a future integrated SCaN architecture and considerations for looking forward, such as system interoperability and developing NASA-wide architecture processes.
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1. Systems Architecture Products
Capturing SCaN Legacy Networks in
Architecture Diagrams and Documents
Constellation Orion-to-ISS Mission
NASA Lunar Mission and Communication
Networks
SCaN Future Architecture
“Architecture is a creative art, even if it is based on an existing legacy system. It is not only
for engineering or construction guidance, but it also has to provide insight, intent, and
vision, so that it can guide the system in moving forward through continual evolution.”
Dr. Yan Zhao; CGI Federal
Director for Enterprise and Solutions Architecture
1
5. Deep Space Network (DSN)
Operational Information Exchange Matrix (OV-3)
Need-line Informa-tion Information Element Producer Consumer
Identifier Exchange Name
Identifier
Sending OpActivity Name and
Receiving Op Node Name and
Sending Op Node Name and
Receiving Op Activity Name
and Identifier
Language
Accuracy
Identifier
Identifier
Identifier
Scope
1 1a Customer Spacecraft Analysis of Customer Support Service DSN Operations Support Service
Data Customer Mission Planning & Center Preparation (3)
Requirements Operations Scheduling (2)
1 1b Planning & Conflict Customer Support Service DSN Operations Support Service
Scheduling Request Resolution, DSN Mission Planning & Center Preparation (3)
Resource Operations Scheduling (2)
Allocation
1 1c Service Schedule Conflict resolution Customer Support Service DSN Operations Support Service
Updates and realtime DSN Mission Planning & Center Preparation (3)
operations Operations Scheduling (2)
2 2a Resource Specs, Customer gains DSN Operations Support Service Customer Support Service
Availability & Status understanding of Center Planning & Mission Preparation (3)
DSN assets and Scheduling (2) Operations
services
2 2b DSN Schedules Long Range DSN Operations Support Service Customer Support Service
(years), Mid Center Planning & Mission Preparation (3)
Range (8-weeks) Scheduling (2) Operations
and Short Range
(7-day)
2 2c Accountability All customer DSN Operations Assess Quality & Customer
Reports deliverables Center Performance (5) Mission
including real- Operations
time and post-
pass deliverable
12. End-to-End IP Network Architecture
The Constellation Project has established the initiative to extend communication infrastructures based on
IP protocol from ground segment to flight/space segment to achieve interoperability among its elements.
SCaN Networks can accommodate IP Service Interfaces to CxP systems.
Orion MS
IP service interface
Applications Cx Router Applications
SCaN NISN
NISN Earth
Data Exchange Networks Data Exchange
Transport SN Transport
Network IP Network IP Network IP Network IP
Data Link DL DL DL DL DL DL Data Link
PHY PHY PHY PHY PHY PHY PHY PHY
12
14. LRS
ISRU
Rover Power
Science Station
EVAs EVAs
Beacons
LSAM Habitat
CEV
LSAM
EVAs
LCT
LRS
MCC
LRS
NCC & LMOC
Lunar Communication and
Navigation Systems
LGTs
All-View Diagram
14
15. Lunar Communication and Navigation Systems (LCNS)
Operational Node Connectivity (OV-2)
Traverse
Monitors,
Voice CEV to/from Moon
Video
Coordinates MCC Data
Directs & Control LSAM Land on
Archive Monitoring Moon
Telemetry
Schedules Tracking
Ephemerides Status
Data Rovers Tracking Navigation
Tour Beacons
Manage
Networks
ENCC EVA Provide
Provide Analysis &
ephemeris services Astronauts. Status, Voice,
Robot Astronaut
Video, Data Support &
Data Data Explore
Schedules Telemetry Control
Ephemerides Status
Data Telemetry Habitat Provide
Centralized
Habitation
Manage links LMOC Facilities
Status
Ephemerides LCNS C/N Provide Local
Directives Lunar Surface
Tracking Terminal
Directives Status Communication
Data Data Timing And LRS Access
Control Telemetry
Telemetry Data
Science Analyze
Lunar Ground ISRU
Make Fuel
Antenna Terminals Power
LCNS Lunar Provide
Relay System Power
LCNS Internal
Other Users
LCNS Users
16. Lunar Communication and Navigation Systems (LCNS)
System Communications Description (SV-2)
Earth Space Lunar Surface
«operations»
«human»
MCC «human» «system» «human»
«system» 35* EVAs
• SMD EVAs Vehicles 32*
CEV 14 - S • pressurized
EVAs
• Gov Agencies
• Int’l Partners «system» • open
Beacon 36*
• 3 or more 33*
13
4 -S 37*
1 -S 4 units
3,
,4 34*
«operations» 42 «system»
LMOC «system» Robots
24 - 802.1
LSAM • science
, .16,
Optical • construction
S
Surface
02.11
a,
-K
2 Networks 38*
1, .16,
-
15
16
25 - 8
6,
12
«operations a, S , .1
11 - Ka, S
-K
7-K . 11
39
a,
» 1 02
,4
«system»
S
- 8
0,
LCNS «system» 26 LSAM
41
Network 18 - Ka, S
-S
LRS
3 Ka, S 10 - K -S
4 a, S «system» 27 29*
u
5 LCT 30*
9-K
«system» 28* 31*
LGT 1
19
«system»
-S
6 «system»
LRS 23
7 ISRU(s) -1 «systems»
20
2 1* 0G
E Wired
-S
«system» Crosslink
8 «system»
LGT 2 Habitat
*
«system» Power 22
LGT 3 Wire
*802.11, .16
*802.11, .16 16
17. Moon/Earth Space Network OV-2 diagrams
networked together to form a System View (SV-4)
Lunar Orbit
Nodal Region
Lunar Surface
Nodal Region
Scenario: Human on EVA on Moon
Conversing with Scientist at GSFC
GN Ground Station
Nodal Region
17
19. Crew Exploration Vehicle Science Capture
Functional Description (SV-4)
DV Still Headsets Microphones
Camera Camera
Sensor Analog Audio
Data Control
MPEG JPEG VoIP
Conversion
Route Space
Control Earth
Wireless VoIP
Relay
on 802.15
Data (WLAN) 802.11
Routing 1G Ethernet Wall
Tables Displays
Ethernet
Routing RF
RF Transmit
Science
Processing
Collection
Requirements
Data
Processing Science Data Collection
Science Data Transport
Storage Science
Sequence
19
25. Looking Forward
• System Interoperability
• Cross-Organizational Interfaces and Decision Making Processes
• Software Architecture and Lifecycle
• Horizontal Technical Coordination and Integration
• Architecture Cost-benefit Analysis
• Developing NASA-Wide Architecting Process
– Levels and Stages (Definition, Description and Design)
• Architecture Performance and Evaluation
• Integration of Architecture with Requirements and ConOps
• Implementation Follow-up
26. Credits
Thanks to System Concepts Integration and
Planning (SCIP) Project Management for
allowing this work to flourish
Credit to Wes Eddy, Katy Kafantaris, Jeffrey Hayden, and Eric
Knoblock for supporting this presentation package