Statement of Work - Lunar Exploration Ground Sites (LEGS) SAM.pdf

National Aeronautics and Space Administration

GRC-LEGS-SOW-002

Revision: NISS-0

Effective Date: 09/21/2026

Research and Technology Mission Directorate (RTMD) / Space Communications and Navigation (SCaN) NASA John H. Glenn Research Center Cage Code No.: 1QFP5 21000 Brookpark Road, Cleveland, Ohio 44135

Lunar Exploration Ground Sites (LEGS)

Public Private Partnership (PPP) Statement of Work iv

Preface

The objective of the Lunar Exploration Ground Sites (LEGS) Public Private Partnership (PPP) is to provide direct-to-earth (DTE) communication and navigation services for missions operating from 36,000 kilometers (km) in Geostationary Orbit (GEO) to cis-lunar and other orbits out to 2 million km, inclusive of lunar surface missions. The project plan is to have at minimum six (6) lunar DTE sites strategically located around the Earth to provide continuous coverage. The lunar DTE sites will provide uplink / downlink at X and Ka-band frequencies. The primary focus of these sites will be to support NASA’s Artemis and Moonbase initiatives. As a part of the PPP, NASA will provide two 20-meter antennas as GFE. One of the NASA GFE antennas is installed and prepared for Site Acceptance Testing (SAT) at NASA’s White Sands Complex in Las Cruces, New Mexico. The second NASA GFE antenna has been manufactured and is being placed in storage until a suitable location is determined. Installation of the second antenna subsystem, and integration of the supporting communications infrastructure for both NASA-provided antennas and all work associated with providing at minimum an additional four (4) lunar DTE sites to complete the redundant subnet will be provided by the Contractor in accordance with this contract. At minimum, three (3) lunar DTE ground sites must be fully operational by October 15, 2027, to support NASA missions, with full redundancy – six

(6) antennas – operational by October 15, 2028.

The purpose of this Statement of Work (SOW) is to define the specific tasks, deliverables, and timelines associated with the PPP.

This document is under configuration control. Changes to this document will be made by change request or by complete revision. Proposed changes to this document must be submitted along with supportive material justifying the proposed change. Any proposed changes to this document shall be approved by an authorized procurement official from NASA prior to SCaN Capability Development Control Board approval.

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Change Information Page

Document Revision Effective Date Description

NISS-0 09/14/2026 Notice of Intent to Sole Source vi

Contents

Preface .......................................................................................................................... iv

Section 1 Introduction Overview Requirements Scope of Work

1.3.1 Facilities and Infrastructure

1.3.2 Deployment

1.3.3 Operations and Maintenance

1.3.4 Usage/Scheduling

Execution of SOW

Section 2 Program Management General Applicable Documents Reference Documents Project Milestones Project Schedule Security Plan Monthly Project Status Meetings Weekly Management Tag up Technical Interchange Meeting (TIM)

Deliverables Government Furnished Equipment

2.11.1 Government Furnished Equipment (GFE) will include the

following:

Section 3 Requirements Description General Requirements

3.1.1 NASA

3.1.2 Partner ......................................... Error! Bookmark not defined.

Technical Requirements

3.2.1 Monitor and Control Subsystem

3.2.2 Signal Processing Subsystem

3.2.3 Site Installation and Integration

3.2.4 Systems Engineering Database

3.2.5 Operations, Training, and Maintenance

3.2.6 Safety and Mission Assurance

vii

Section 4 Verification and Validation

4.1.1 LEGS 1 Antenna SAT

4.1.2 Capability Validation Milestones

4.1.3 Operational Readiness Reviews (ORRs)

Section 5 Appendices

Appendix A. Contractor Safety Program

Appendix B. LEGS 1 WSC Installation

Appendix C. Working at WSC

Appendix D. Integrated Master Schedule Description

Appendix E. Risk

Appendix F. Capability Validation Milestones (CVMs)

Appendix G. Operational Readiness Reviews

Appendix H. Abbreviations and Acronyms

Appendix I. Glossary viii

List of Figures Figure 1: LEGS 1 layout

List of Tables Table 2-1: Applicable Documents Table 2-2: Reference Documents Table 2-3: Project Milestones Table 2-4: Deliverables Table 3-1: Cameo Systems Modeler Compliant Formats Table 5-23. Physical Security Interface Specifications

Section 1 Introduction

Overview The purpose of this Statement of Work (SOW) is to define the specific tasks, deliverables, and timelines associated with the PPP.

The Contractor will leverage best commercial practices for the development, integration, and test of the Lunar DTE ground stations. The NASA LEGS project does require insight into the Contractor’s processes to ensure the NASA LEGS team can satisfy the NASA internal requirements for both the Agency as well as the user community. The Capability Verification Milestone (CVM) method will be used to conduct appropriate engineering reviews and project insight throughout the project lifecycle. The key points of the partnership that relate to NASA’s usage of these assets are:

NASA will be the highest priority user of these assets NASA will have approval authority over who uses these assets when not being used by

NASA

NASA has approval authority over where the second NASA GFE will be located

Lunar Exploration Ground Sites (LEGS) are space communication ground stations built primarily for lunar services in support of NASA’s Artemis and Moonbase initiatives. These ground stations may provide DTE communications service to both Human Spaceflight (HSF) and non-HSF missions in cis-lunar space, provided the service is deemed suitable for the particular mission.

Requirements The LEGS PPP requirements have been developed at Level 3 by NASA SCaN and the LEGS Project team. The Level 2 parent requirements are from the SCaN-SRD Revision 7 and Moon to Mars M2M-30002 SCaN appendix documents. The International Communication System Interoperability Standards (ICSIS) and LunaNet Interoperability Specification (LNIS) are also referenced were applicable. These requirements define the expected common architecture for the DTE subnet created by the partnership.

The LEGS Level 3 requirements are provided in GRC-LEGS-REQ-001 LEGS PPP SRD for the subnet development, integration and test.

These requirements are configuration managed using Model Based Systems Engineering (MBSE) tools and best practices. Model Based Systems Engineering (MBSE) is covered in Section 3.2.4

Scope of Work The LEGS subnet will include six ground stations distributed geographically to provide continuous coverage of spacecraft in both cis-lunar orbit and lunar surface operations. Each LEGS ground station will consist of a 20-meter class dual band (X/Ka) and associated back-end electronics providing signal processing as well as user data receipt and delivery. Three (3) ground stations with the ability to provide full global coverage will be fully operational by October 15, 2027 to support NASA missions; with full redundancy, six (6) antennas, operational by October 15, 2028.

The lunar subnet will be designed to be extensible to support NASA’s future space communication needs in the Cis-lunar region and other near space communication needs. The antenna subsystem and the supporting communications infrastructure should be – to an extent practicable – a common architecture, design, and operations. See Section 3 “Requirements Description”, for more detail on the system design.

Below is a description of the work to be accomplished:

Base work

Using the Government provided Level 3 system requirements and the Government furnished antennas, develop the infrastructure and ground station electronics needed to operate and maintain the antennas and provide the required services to NASA users.

Establish subnet connectivity to the operational NASA SCaN Program Operations Cloud environment (SPOC).

Complete the integration of the LEGS 1 antenna located at the NASA White Sands Complex (WSC) in New Mexico into the LEGS subnet.

o Install Fire suppression system in the LEGS 1 antenna structure and any support structures. This suppression system will be integrated into the site Building Monitoring System (BMS) for local monitoring.

o Coordinate efforts needed to complete the integration of the LEGS 1 antenna located at WSC to the local infrastructure for utilities and monitoring.

Coordinate shipping and receive the LEGS 2 antenna components at the agreed ground site location.

Perform a functional checkout of the LEGS 2 antenna after assembly.

Deploy the LEGS 2 antenna at location that supports the desired lunar coverage and is compliant with the environmental specifications of the antenna. This includes the construction of the foundation in accordance with the antenna vendor’s specifications.

Integrate LEGS 2 into the LEGS subnet.

Deploy global and full redundant LEGS subnet coverage within required timeline.

Verify that the installed LEGS ground stations meet the applicable Level 3 system requirements.

Validate the services to be provided to NASA using the Capability Validation Milestones

(CVM) process defined by NASA.

Provide operations and maintenance support of the LEGS subnet ground stations.

Provide unlimited, uninterrupted, and highest priority usage of available ground stations once global coverage is achieved at the negotiated rate.

Options There exists the possibility that the LEGS 1 antenna will not have completed SAT when the LEGS PPP is awarded. If the SAT has not been completed by the time the partnership agreement is finalized:

Complete the LEGS 1 SAT activities at WSC (reference Section 4.1.1)

1.3.1 Facilities and Infrastructure

1.3.1.1 LEGS 1

The LEGS 1 antenna has been constructed on the WSC facility adjacent to the WSC Second Tracking and Data Relay Satellite System Ground Terminal (STGT) building. The LEGS antenna is being prepared for site acceptance testing (SAT) by the antenna Contractor.

The antenna is located on WSC property and lies within its own security boundary (fence), accessible by a controlled site access road. Adjacent to the antenna is a concrete pad that can support a small structure to house equipment supporting the antenna. The power and communication interface for the antenna and the concrete pad are located within the security boundary adjacent to the concrete pad. The WSC STGT building, within its own security perimeter fence provides power, communication lines, and deionized water for humidification to this antenna interface point via underground conduits.

Figure 1: LEGS 1 layout

The Contractor will provide support to complete the installation of the utilities, security and facility monitoring at LEGS 1. This support could include coordination with the site host for running utilities to existing site infrastructure, installation of fire detection capabilities, and security infrastructure interface.

1.3.1.2 LEGS 2

The LEGS 2 antenna has completed subsystem-level factory acceptance testing (FAT) and is being placed in storage at the antenna vendor facility(s). Some of the larger antenna structural subcomponents were manufactured internationally. These may be stored at or near their point of manufacture until such time that LEGS 2 ground station location is determined. The LEGS 2 antenna is under warranty while in storage.

Once the location has been agreed to with the Contractor any unique facilities and infrastructure requirements will be finalized for that location.

The Contractor shall be responsible for site design and foundation work for the antenna. The Contractor shall be responsible for working with the antenna vendor to provide transportation to the LEGS 2 location.

1.3.1.3 SCaN Program Operations Cloud (SPOC) environment

The LEGS subnet will interface and utilize SPOC for the transport of data, data storage, and hosting of some virtual machine devices. The number and type of virtual machines will be determined as part of future technical meetings between SCaN and the Contractor. The Contractor shall connect and integrate their data delivery systems with SPOC for data transit and storage.

The initial interface approach being considered is to connect to SPOC via regional Amazon Web Services (AWS) Direct Connect Point of Presence nearest the LEGS sites using AWS DX edge devices. The actual approach will be finalized as part of the technical exchange meetings between SCaN and the Contractor.

1.3.2 Deployment

The Contractor shall finish the deployment of the LEGS 1 and LEGS 2 antennas. LEGS 1 is installed at WSC. LEGS 2 is in storage.

Phase 1 is to have three (3) lunar DTE ground sites operational by October 15, 2027.

Phase 2 is to have six (6) antennas – operational by October 15, 2028.

The Contractor shall perform all non-recurring engineering, integration and validation to meet NASA’s mission requirements.

1.3.3 Operations and Maintenance

The O&M portion of the contract will commence following successful ORR and when global lunar DTE coverage is achieved. The Contractor shall propose the fixed rate for usage of each ground station in the subnet. This will include the unlimited and uninterrupted use by NASA as defined in the ConOps.

1.3.4 Usage/Scheduling

Any usage and schedule request interfaces with the Contractor will be via a NASA Enterprise Service Management system (ESM). Scheduling of the LEGS subnet assets will be handled by SCaN Network Operations.

Execution of SOW This SOW describes the requirements completing the installation and integration of the NASA provided LEGS-1 and LEGS-2 antennas, integration with the site facilities, deployment of additional ground stations as necessary, connection to the NASA Managing Organization and verification and validation of the services to be provided to NASA.

Text annotated with [LEGS 1] indicates language within the SOW that is specific to the LEGS 1 site or antenna.

Text annotated with [LEGS 2] indicates language within the SOW that is specific to the LEGS 2 site or antenna.

Section 2 of this SOW defines the Program Management aspects of the PPP contract.

Section 3 of this SOW defines the Requirements description for the design, fabrication, deployment and operation of the earth stations.

Section 4 of this SOW describes the Validation and Verification requirements for complete system at each location.

Systems to Security Categories to support NASA Missons. This plan and supporting documents shall be entered into the NASA cybersecurity system of record pursuant to Authorization to Operate (ATO) requirements set forth in NASA Policy Directive 2810.1, “NASA Information Security Policy” and NASA Procedural Requirement (NPR) 2810.1, “Security of Information and Information Systems.” The FIS security plan and ATO must be in place before any system may operate in the NASA environment.

When the Contractor receives, processes, stores or transmits NASA non-public information, especially Controlled Unclassified Information (CUI) including Personally Identifiable Information (PII) on a non-federal system (e.g., the Contractor’s corporate system) the Contractor must attest that the system meets the requirements for data protections detailed in NIST Special Publication 800-171, “Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations.”

This attestation may take the form of an existing authorization to operate, third-party review/audit certifying that the non-federal system meets the requirements of NIST SP 800-171 or equivalent standard of information protection, such as the ISO 27001 standard, a certification from another federal agency such as the DOD Cybersecurity Maturity Model Certification (CMMC) Level 2, or other artifacts showing that the cybersecurity controls have been tested, and the risk posture of the information system is well understood.

Monthly Project Status Meetings The Contractor shall host monthly project status meetings following the delivery of the Monthly Status Report. The monthly project status meeting is intended to be an open forum to communicate progress, challenges, as well as to provide scope, schedule, risk and budget updates.

Weekly Management Tag up The Contractor shall host Weekly Management Tag ups with NASA. This meeting is intended to be a brief discussion of emerging issues, weekly achievements, and updates on topics from the Monthly Project Status meeting.

Technical Interchange Meeting (TIM) The Contractor shall conduct TIMs as requested by the NASA or needed by the Contractor for discussion of emerging topics. The TIMs may include but are not limited to:

a) A description of any problems or delays with the corrective actions taken or to be taken.

b) Identification of concerns, risks, and mitigations where appropriate.

c) An updated schedule (IMS) identifying any changes since the previous report and applicable justification for those changes. Including critical path and 30 day look ahead.

d) A descriptive list of guidance needed from NASA.

e) Discussion of Safety and Quality Assurance issues or concerns.

f) Discussion of Model Based System Engineering formats or products.

Deliverables The Contractor shall deliver all reports and administrative documents listed in Table 2-4 to the NASA Technical POCs and project Contracting Officer Representative (COR). All deliverables shall be submitted in accordance with 52.227.14 RIGHTS IN DATA-GENERAL (MAY 2014) and applicable alternate(s) AS MODIFIED BY NASA FAR SUPPLIMENT 1852.227-14 (APR 2015). Data Item Deliverables are designated as “Approval (A),” or “Review (R),” as indicated in Table 2-4.

A –Approval: Documents in this category shall require submission to the Task Monitor within the time specified and written approval prior to Contractor implementation. NASA management will act on items requiring approval within 30 calendar days of receipt of the item.

R –Review: Documents in this category shall be submitted to the Task Monitor within the time period specified and will be subject to evaluation. These documents shall be implemented upon issuance unless otherwise noted. However, when an evaluation reveals inadequacies in a document, the Contractor shall correct the document as required.

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Government Furnished Equipment

2.11.1 Government Furnished Equipment (GFE) will include the following:

Comprehensive material descriptions will be provided after contract award. This will include but not limited to where applicable; manufacturer, part number, quantity/units, version.

a) LEGS 1 and LEGS 2 Antennas as defined in SENSE-ALLEN-SPEC-001 Lunar Exploration Ground System Dual Band LEGS 1 antenna as installed at WSC. Appendix B WSC Installation covers the specific services and utilities unique to [LEGS 1 LEGS 2: FAT completed, in storage at the vendor facilities

b) Fiber Optic Transmission System (FOTS) panel (QTY 2 per antenna)

c) Antenna subsystems spares provided with the original antenna purchases. A comprehensive list will be provided after contract award.

Section 3 Requirements Description

General Requirements

3.1.1 NASA

General responsibilities will be covered in the Terms and Conditions of the subcontract. Items to be considered include:

a) NASA will provide access to work areas as required.

b) NASA will provide coordination with host site Facilities and Operations.

3.1.2 Contractor

The Contractor shall supply all materials and services as specified in this SOW, to include:

a) The Contractor shall supply all tools, assembly equipment, test equipment, machinery required, and heavy lift equipment for the assembly, installation, and testing of the antenna system.

b) The Contractor shall provide requirement allocations to each antenna.

c) The Contractor shall provide a Work Breakdown Structure (WBS) dictionary which describes the effort and products necessary to manage, design, implement, install, integrate, test, and transition the antenna to operations. The WBS shall be utilized in the IMS and delivered at kickoff.

d) The Contractor shall identify key personnel for the execution of the contract. At a minimum, the key personnel list shall include the individual with overall project programmatic responsibility and the individual with overall technical responsibility.

e) The Contractor shall submit a milestone payment schedule based off the milestones in Section 2.4Table 2-3.

f) The Contractor shall supply all materials and services required to complete this SOW other than the GFE noted in the SOW.

g) The Contractor shall complete an updated Commercial Architecture Security Questionnaire (CASQ) and submit with the proposal. The CASQ process is fully described in the Space Communication and Navigation (SCaN) commercial Satellite Communications Requirements and Approval Process.

h) The Contractor shall comply with the requirements identified in GRC-LEGS-REQ-003 LEGS Security Data Requirements Description.

i) The Contractor shall use the listed Applicable Documents (Table 2.1) or equivalent standard in the country the antenna will be located in. The Contractor shall provide list of applicable standards to be used as equivalents

j) The Contractor shall identify a primary Safety and Mission Assurance (SMA) point of contact (POC) with responsibility for leading the Contractor’s SMA activities.

k) The Contractor shall describe the tools, techniques, and processes it will utilize to develop, modify, verify, and maintain software for LEGS.

l) [LEGS 1] [LEGS 2] The Contractor shall conduct a hazard analysis for the integrated LEGS ground system and provide it as part of the CVM process.

m) [LEGS 1] [LEGS 2] Any software determined by NASA, to be safety critical shall meet safety critical requirements listed in NPR 7150.2D. Tailoring of specific requirements shall be approved by NASA.

n) [LEGS 1] [LEGS 2] Any hardware determined by NASA, to be safety critical shall meet the local or site safety critical requirements.

o) [LEGS 1] [LEGS 2] The Contractor shall provide, with adequate notice by the Government, access to the GFE antennas and their associated sites.

[LEGS 1] specific Requirements: See LEGS 1 WSC Installation for LEGS 1 specifics.

p) [LEGS 1] The Contractor shall ensure that all on-site Contractor personnel attend all NASA or site POC safety and security briefings that are required for performance of the work effort.

q) [LEGS 1] For work on secure sites, the Contractor shall abide by all security requirements levied by NASA and/or the organization responsible for the NASA work site.

r) [LEGS 1] The Contractor shall conduct a brief tag-up meeting at the beginning of each workday with NASA Site Operations for situational awareness.

s) [LEGS 1] The Contractor shall provide safety oversight of all work conducted on the sites during the installation, integration, and test of the ground station.

t) [LEGS 1] The Contractor shall remove all post-installation waste (trash). The Contractor may provide a dumpster and locate it near the installation if desired. Dumpster size and location shall be coordinated with the NASA Technical POC. The dumpster(s) shall be removed prior to payment of the final invoice.

u) [LEGS 1] The Contractor shall provide a portable toilet and locate it near the installation.

Portable toilet locations shall be coordinated with the installation site POC.

a. The Contractor shall ensure the portable toilet is cleaned and serviced weekly. The portable toilet shall be removed prior to payment of the final invoice.

v) [LEGS 1] Office space, telecommunications access, and portable storage will not be provided at the installation sites. The Contractor may provide portable office space, telecommunications, and portable storage and locate it near the installation if desired.

Portable office space and portable storage space locations shall be coordinated with the installation site POC.

w) [LEGS 2] Office space, telecommunications access, and portable storage will not be provided at the installation sites. The Contractor may provide portable office space, telecommunications, and portable storage and locate it near the installation if desired.

Portable office space and portable storage space locations shall be coordinated with the installation site POC.

x) [LEGS 2] The Contractor shall provide access to an office space for use by the Government during site visits for business calls, computer work, and meetings of up to 5 people

Technical Requirements NASA personnel will evaluate and provide final project acceptance through a formal notification process at each review. All acceptance will be subject to NASA’s written acceptance and verification the Contractor has conformed to all SOW requirements and specifications, as well as all contract terms and conditions.

a) The Contractor provided ground stations shall meet the requirements specified in GRC-

LEGS-REQ-001 LEGS PPP SRD.

b) The Contractor shall design the ground station infrastructure to support data delivery and station monitoring to a cloud service.

[LEGS 1] specific Requirements: See LEGS 1 WSC Installation for LEGS 1 specifics.

c) [LEGS 1] The Contractor shall provide an interface control document (ICD) defining the interfaces with the White Sands Facility. This includes the utility and technical power, di water, and any fire, security or BMS connections. This will be used by the WSC for configuration management of the LEGS utilities. Appendix B outlines the basic interfaces with the WSC site.

3.2.1 Monitor and Control Subsystem

a) The Contractor shall supply monitor and control capability for the LEGS 1 and 2 antennas.

This is the primary interface for external users, the signal processing subsystem, and antenna subsystem.

i. The monitor and control subsystem receives and processes control directives, spacecraft acquisition data, deconflicted schedules, and in-service reconfigurations.

ii. Commands subsystem equipment such as the high power amplifiers and other forward path signal gains.

iii. [LEGS 1][LEGS 2 ] The monitor and control subsystem shall interface with the GFE antenna provided Antenna Control unit (ACU).

[LEGS 1] specific Requirements: See LEGS 1 WSC Installation for LEGS 1 specifics.

b) [LEGS 1] The Contractor shall provide facility monitoring capabilities (environmental, security, fire, off nominal conditions) for the LEGS 1 Antenna subsystem and any support structures that can be monitored by the WSC.

c) [LEGS 1][LEGS 2] The Contractor shall provide a Software Maintenance Plan, a Software Verification Procedure, a Software Version Description Document, and a Software User Manual if the local software configuration of the LEGS 1 and 2 antennas is modified from what was provided.

3.2.2 Signal Processing Subsystem

a) The Contractor shall supply signal processing capability for LEGS 1 and 2.

i. The signal processing subsystem typically performs modulation and demodulation of the forward and return signals, provides forward error correction encoding and decoding, performs baseband data encapsulation of AOS frames into VITA-49.2 packets, distributes IF signals, converts signals between analog and digital in both directions, synchronizes symbols, performs time tagging, provides IF tuning, and supports Doppler measurement and ranging through use of low-rate modems, high-rate modems, and IF switches.

b) The Contractor shall propose to the Government, as part of the CVM process, if the GFE FOTS will not be utilized. Government will provide concurrence on the Contractor proposal.

3.2.3 Site Installation and Integration

a) The Contractor shall obtain spectrum authorization for each location in accordance with

NPD 2570.5, NASA RF Spectrum Management Manual.

b) The Contractor shall connect to and demonstrate the connections to the SPOC from each

LEGS antenna

c) The Contractor shall provide all required hardware and cables to connect to the Contractor furnished equipment (CFE) to the site grounding and lightning protection.

[LEGS 1] specific Requirements: See LEGS 1 WSC Installation for LEGS 1 specifics.

d) [LEGS 1] If the Contractor uses the provided pad at LEGS 1 for a structure, the structure shall not exceed 15 feet in height.

e) [LEGS 1] Any support structure containing the ground station systems shall be designed with equipment appropriate for the local infrastructure and environmental conditions (e.g., available power, water, local weather and site-specific conditions).

f) [LEGS1] The Contractor shall integrate their equipment with the site infrastructure as required for operation. Appendix B outlines the basic interfaces with the WSC site.

g) [LEGS1] The Contractor shall test the lightning protection system IAW NFPA 780 after installation.

h) [LEGS1] The Contractor is responsible for maintenance of any facility elements added by the Contractor within the fenced area. This includes but is not limited to lighting, pavement, utilities conveyances, and any structures or systems added by the Contractor.

i) [LEGS1] [LEGS2] The Contractor shall document and configuration manage any changes to the baseline configuration of the Government provided antennas.

3.2.4 Systems Engineering Database

a) The Contractor shall describe the tools, techniques, and methods it will utilize to capture systems engineering design and development artifacts generated during LEGS development. The Contractor is encouraged, but not required, to utilize a Model-Based System Engineering (MBSE) tool to build the subsystem model.

b) The Contractor shall deliver a requirements database in Excel spreadsheet format as a minimum.

c) If the Contractor does utilize an MBSE tool, the Contractor shall coordinate with the LEGS project team regarding any plug-ins they intend to use, to ensure compatibility and availability with the LEGS project team. For reference, Table 3-1 outlines the Cameo Systems Modeler compliant file formats that are acceptable for submission, listed in order of preference for the LEGS project.

d) If the Contractor does utilize MBSE, the Contractor model shall utilize SysML diagrams, as opposed to the older UML diagrams, when possible. The LEGS model exclusively uses SysML diagrams.

c) The Contractor shall identify and provide a Quality POC and Safety POC (if different than the Quality POC) to NASA.

d) The Contractor shall implement and execute a continuous risk management process in accordance with Appendix E and risks shall be reported monthly.

Section 4 Verification and Validation

The Contractor shall conduct the following design, test, and gate reviews in accordance with their appropriate commercial practices. NASA’s intent is to use the Contractor’s practices and procedures to the fullest extent possible to satisfy NASA internal procedural requirements.

4.1.1 LEGS 1 Antenna SAT

The LEGS 1 antenna has been constructed on government owned property adjacent to the WSC Second Tracking and Data Relay Satellite System Ground Terminal (STGT) building. The LEGS 1 antenna is being prepared for site acceptance testing (SAT) by the antenna Contractor. There exists the possibility that the LEGS 1 antenna will not have completed SAT when the LEGS PPP is awarded. If the SAT has not been completed by the time the partnership agreement is finalized, the work needed to complete the antenna installation and SAT testing may become part of the scope of the partnership agreement. The expected status of the LEGS 1 antenna at time of PPP award is projected as follows:

Factory Acceptance Testing (FAT) has been successfully completed by the antenna manufacturer.

The antenna is installed, fully functional.

The antenna has been installed in accordance with design specifications and is mechanically complete.

The utilities and supporting infrastructure, including electrical power, grounding, communications, and environmental controls, required to conduct SAT are operational and available for testing.

NASA will provide a report identifying current configuration of site and SAT review readiness to the Contractor as soon as possible, but no later than October 7, 2026, or contract award date, whichever occurs later. NASA will provide timely access to the site, required approvals, and availability of designated Government personnel to support gap analysis.

Contractor shall provide gap analysis using NASA-provided SAT readiness report along with Contractor assessment of the state of the antenna.

4.1.2 Capability Validation Milestones

The Capability Validation work shall be completed in a methodical series of steps (milestones).

a) The Contractor shall utilize a CVM process to demonstrate the completion of these activities to NASA. NASA recommends the Contractor combining CVM steps where possible. NASA recommends utilizing a 4 step process as outlined in Appendix F.

b) The Contractor shall propose a combination of CVM steps based on previous work completed and the maturity of the systems being used. NASA reserves the right to accept or reject Contractor-proposed CVM steps as part of contract negotiation.

c) The CVM tailoring shall be presented as part of the kickoff/ part of the proposal.

4.1.3 Operational Readiness Reviews (ORRs)

It is NASA’s intention to hold an Initial Capability ORR to evaluate the readiness of the lunar subnet when the first three ground stations are brought online, and a Redundant Capability ORR to evaluate the expansion of the subnet when it expands from 4-6 ground stations. The ORRs will be a NASA led review. The ORR is covered in Appendix G.

a) The Contractor shall assist the government in preparing for the ORRs by providing the necessary artifacts

b) The Contractor shall participate in the ORR reviews with NASA

4.1.4 Mission support

During the mission design and testing phases, the missions will need to understand system design and will require artifacts to design and test too. These include: ICDs, ConOps, points of contact, service. Onboarding of missions to the lunar subnet will be through other contracts.

a) The Contractor shall coordinate with the SCaN Network to facility network anomaly resolutions to assist in the resolution of the anomaly.

b) The Contractor shall support testing with user missions for use of the lunar subnet and associated interfaces with the SCaN network.

c) The Contractor shall coordinate with the SCaN Network to provide a means to coordinate emergency support for the mission. This includes facilitating communications to prevent the mission from loss of their platform and to return to normal operations.

d) The Contractor shall support SCaN Mission-to-network interfaces as identified in an Interconnection Security Agreement (ISA).

Section 5 Appendices

Appendix A. Contractor Safety Program

This section applies to LEGS 1 and any other LEGS antenna that may be located on US government property.

The Contractor shall provide an overall safety program that directs activity appropriate to the risk associated with all foreseeable hazards. The safety program shall be implemented as part of the Contractor’s overall occupational health and safety management system. Such a plan shall demonstrate compliance with all applicable local, NASA, and Country regulations and consensus standards. Safety plan requirements shall flow down to all sub-contractors utilized on the project.

Electrical Safety

a) The Contractor shall provide Lock Out / Tag Out (LOTO) procedures to safe the system for maintenance and repair activities. LOTO is a fundamental requirement when working around, on, or near hazardous energy sources.

b) Contractor personnel shall follow, use, and practice the approved LOTO policy and procedures.

c) Contractor personnel shall communicate any concerns of the approved LOTO policy and procedures to their NASA project point of contact.

d) Contractor personnel shall provide evidence their employees have the required training and equipment to successfully perform LOTO according to the approved LOTO policy and procedures.

e) Energized electrical work safety is a fundamental requirement when working around, on, or near live electrical sources. A NASA approved Contractor Energized Electrical Work policy, procedure, and training shall be followed for all Contractor personnel exposed to, working on, or managing electrical sources and equipment. These policies and procedures are in place to protect and maintain a safe environment for all personnel.

f) Contractor personnel shall follow, use, and practice the approved Energized Electrical Work policy and procedures.

g) Contractor personnel shall communicate any concerns of the approved Energized Electrical Work policy and procedures to their NASA project point of contact.

h) Contractor personnel shall provide evidence their employees have the required training and equipment to successfully perform Energized Electrical Work according to the approved Energized Electrical Work policy and procedures.

i) Failure to meet any of the above requirements could result in injury and possible death for personnel working around on, or near energized electrical sources and equipment. Therefore, violations of the approved policy and procedures for Energized Electrical Work will result in a work stoppage and/or removal from site.

j) Method of Procedure (MOP) - Shall be developed by the Contractor and approved by NASA for all energized electrical work or other high-risk work, such as switching activities.

k) The Contractor shall provide qualified personnel to perform electrical work.

l) The Contractor shall provide documentation affirming the qualifications of each employee that is responsible for performing energized or potentially hazardous operations such as voltage testing, troubleshooting, switching, hazard identification and LOTO.

m) All Contractor employees performing electrical work shall be licensed journeyman/master electricians or be working under the direct supervision of a licensed journeyman/master electrician, in the case of helpers/apprentices.

n) The Contractor shall document and upon request, provide said documents that each qualified employee has received training required by NFPA 70E to include Electrical Safety Training, Lockout/Tagout Training and Emergency Response Training.

o) The training requirements shall apply to employees exposed to an electrical hazard when the risk associated with that hazard is not reduced to a safe level by the applicable electrical installation requirements.

p) Such employees shall be trained to understand the specific hazards associated with electrical energy.

q) Employees shall be trained in safety-related work practices and procedural requirements, as necessary, to provide protection from the electrical hazards associated with their respective job or task assignments.

r) Employees shall be trained to identify and understand the relationship between electrical hazards and possible injury.

Work at Heights (Fall Protection)

Contractors performing any work at elevated heights over 4 feet (48 inches) on sites shall:

a) Comply with current OSHA, ANSI Z359 series, and fall protection standards.

i. OSHA 29 CFR 1910 Subpart D.

ii. OSHA 29 CFR 1910.140.

iii. OSHA 29 CFR 1926 Subpart M Fall Protection (when applicable).

iv. ANSI Z359 series fall protection standards.

b) Submit a copy of their fall protection program to NASA.

c) Submit a site-specific hazard analysis to NASA prior to performing work where Personal Fall

Arrest Systems (PFAS) will be used.

d) Receive formal training and be qualified through their company. Contractors or other similarly affiliated teammates (e.g., universities) shall submit their fall protection qualification from their employer to the Environmental Health and Safety (EHS) POC prior to working onsite.

e) Provide fall protection equipment needed for work on sites. The Contractor shall not utilize equipment unless approved in writing from NASA.

Lifting Devices and Equipment

Contractors using any powered lifting devices and equipment (cranes, forklifts, MEWPs, etc.) for work on sites shall:

a) Comply with current OSHA, ANSI, and standards for training, certification, and safe use of lifting devices and equipment, including but not limited to:

i. OSHA 29 CFR 1910.178 Powered Industrial Trucks.

ii. OSHA 29 CFR 1910.179 Overhead and Gantry Cranes.

iii. OSHA 29 CFR 1910 Subpart F Powered Platforms, Manlifts, and Vehicle-Mounted Work Platforms.

iv. OSHA 29 CFR 1926.453 Aerial Lifts.

v. ANSI/SAIA A92 Series for Mobile Elevating Work Platforms (MEWP).

vi. ANSI/ASSE Z359 Series for Fall Protection.

b) Submit a copy of their relevant safe use plan to both the Primary Contractor EHS POC and the

NASA EHS POC for the equipment which will be operated onsite, including but not limited to:

i. Plans for pre-use and worksite inspections.

ii. Copies of current documented periodic/frequent inspections (as applicable).

iii. Copies of current crane certifications and load testing certificates (as applicable).

iv. Documented manufacturer approval for any attachments that will be used during the operation.

v. Environmental spill containment plan for all equipment containing fuel, oil, lubricants, and/or hydraulic fluids.

c) Receive formal training and be qualified through their company. Contractors or other similarly affiliated teammates (e.g., universities) shall submit their LDE qualification from their employer to both the Primary Contractor EHS POC and the NASA EHS POC prior to working onsite. Qualification documentation must state the class, group, and/or type of equipment that each operator is certified to operate.

d) Submit Lift Plan(s) to both the Primary Contractor EHS POC and the NASA EHS POC, as applicable, per NASA Lifting Standard 8719.9. Lift Plans are required 14 business days prior to lift.

e) Comply with the work-rest cycles as noted for critical positions to maintain ground safety (NPR 1800.1, NASA Occupational Health Program Procedures, Section 2.5).

f) Review site rescue plans and risk assessments and communicate information to workers and operators under their direction.

Appendix B. LEGS 1 WSC Installation

This Appendix is intended to give the Contractor an understanding of the physical interfaces at the WSC site for LEGS 1. The Contractor shall provide documentation to NASA documenting the final physical interfaces.

LEGS 1 GFE

The following GFE will be provided at WSC complex for support of the integration at the LEGS 1 antenna site:

Antenna

- NASA provided Antenna

- All Antenna to Ground station interfaces terminated at the Antenna demarcation panel.

Physical

- Deck Shelter foundation - a concrete pad designed to support two 40’ x 10’ Conex boxes with appropriate walkaround area.

- A demarcation point at the edge of the concrete pad where all utilities and conveyances terminate.

- Duct banks and conveyances connecting the Antenna demarcation to the concrete pad site demarcation for all interfaces.

Communication

- Antenna FOTS panel

- Back end electronics FOTS Panel

LEGS Facility Interfaces

Power and Grounding Interfaces

- Construction power available for antenna support structures

- The site utilities will be brought to a demarcation power fence or power panel at the antenna and concrete pad. These utilities will be brought to the demarcation in buried, concrete protected duct banks.

Appendix C. Working at WSC

The NASA White Sands Complex is a secure US Government facility. The Contractor shall comply with the requirements and procedures identified in this appendix.

Physical Security at WSC

a) All Contractor personnel shall be citizens of the United States of America. Dual citizenship is not accepted without a valid security clearance. Foreign nationals will NOT be allowed access onto the site. Prior to entrance into the facility, the Contractor shall provide the appropriate visit request forms to the White Sands Complex (WSC) Security office at least 2 weeks in advance, faxed to 575-527-6948. No visits will be authorized until all security requirements are met. The WSC security office can be contacted at wsc-dl-security@mail.nasa.gov or 575-527-6903/6904.

b) Contractor personnel shall possess identification documents complying with the REAL Identification (ID) Act of 2005 for access to the site. Most federal IDs such as federal employee badges, passports, and military ID cards are acceptable. Some state-issued driver’s licenses and IDs are non-compliant and will not be accepted. Direct all questions to the WSC security office.

c) No Personal Electronic Devices (PEDs), such as mobile devices are permitted inside the buildings on the site. Cell phones may be used in the parking lots and other areas exterior to the buildings. Laptops may be approved if Wi-Fi is disabled, and camera function is disabled or covered by the security force and a pass will be provided if approved.

d) No cameras are permitted on site. Any required photographs shall be provided by WSC personnel in accordance with the WSC-SOP-0009, WSC Security Standard Operating Procedures. Cell phones with cameras are permitted outside of the buildings, however, the camera function cannot be used anywhere on the site. If photography is permitted, images shall not be posted to any web site unless approved by the WSC Facility Security Officer (FSO), the NASA Program Security Officer (PSO), and GSFC Code 240. Images shall not be used in any promotional material or advertising without the express approval of the entities.

e) No pets or animals are permitted on site.

f) No weapons are permitted on site.

g) On the initial site visits the Contractor personnel shall be required to receive a Security and Safety briefing/orientation to familiarize them with the site’s security and safety policies and procedures. Contractor’s personnel shall comply with all site security and safety policies while working on-site.

h) Physical Security requirements for all NASA facilities will adhere to NASA NPR 1620.3, Physical Security Requirements for NASA Facilities and Property.

Applicable Documents

v. Safety Vests.

Fire Alarms

The Contractor escort shall:

a) Escort Contractor personnel to the designated assembly area if fire alarm sounds.

b) Report to NASA’s project manager or another key project team member at the assembly area. A NASA project team member will report to the security guards for accountability.

Computer and Information Technology

a) IT Security is mandatory for this application. The Contractor shall strictly adhere to guidelines specified in the current version of NPR 2810.1F, Security of Information and Information Systems.

b) No Contractor data processing equipment or devices are connected to a NASA system without prior authorization and proper processes.

Appendix D. Integrated Master Schedule Description

1. Schedule Requirements The Contractor shall provide one authoritative Integrated Master Schedule (IMS) covering the entire contract scope, including all WBS elements, subcontracted work, Government furnished property/information (GFP/GFI) interfaces, Capability Validation Milestones, artifact deliveries, and contract milestones.

The Contractor shall develop and submit a Schedule Management Plan identifying:

o Responsible schedule maintaining position o Schedule update cadence o Systems used for schedule management o Schedule change control/approval process o Method for managing schedule risks o Contract/project milestones and deadlines

The Contractor is responsible for full schedule integration of all sub-contractors schedules at no higher than intermediate level, including all milestones, deliveries, receivables, and interfaces.

For the most effective IMS, The Contractor is highly encouraged to use NASA best practices as presented in the NASA Schedule Management Handbook Rev. 2 (2024), NASA Space Flight Program and Project Management Handbook SP-20220009501 (2022) and Project Planning & Control Handbook SP-2016-3424 (2016).

2. Schedule Baseline Requirements The Contractor shall deliver the proposed Baseline IMS + Basis of Schedule (BoS) within 30 calendar days of incorporation for the Schedule Baseline Validation Review (SBVR).

SBVR will occur within 30 calendar days of baseline IMS delivery; The Contractor shall disposition findings within 10 business days. Rebaseline may require a delta-SBVR. Baseline is set after written Government concurrence.

Baseline changes affecting dates, durations, logic, or scope mapping require a Baseline Change Request and appropriate Government concurrence. Changes to control milestones require modification or CO direction.

3. Schedule Maintenance and Monthly Status Requirements The Contractor shall maintain the IMS as the official record of planned and actual schedule performance.

IMS must record actual dates and remaining durations for all in-progress work.

The Contractor shall status the IMS monthly to a single month-end status date. Deliver the IMS and Monthly Status Report within 10 business days after month end.

The Contractor shall deliver monthly:

o IMS (native file) o IMS cumulative change log o IMS margin log o IMS status and performance report

Monthly Status Report shall include:

o Health-check against IMS acceptance criteria o Schedule slips impacting critical path (with cause/impact/action) o Critical path reporting (primary/secondary/tertiary) o Total float/margin burn-down o Required performance metrics; "Watch" breach requires narrative disposition "Corrective

Action" breach requires written recovery plan o Milestone performance reporting (baseline/forecast/actual)

Government may reject any nonconforming schedule deliverable within 5 working days; The Contractor shall correct and resubmit within 3 working days.

Repeated nonconformance (2 consecutive or 3 within 12 months) requires a root-cause corrective-action plan and may affect CPARS and trigger contractual remedies.

4. IMS Acceptance Criteria Requirements The Contractor’s IMS shall meet the following criteria:

1. <5% tasks missing predecessor/successor (target 0)

2. Logic on summary tasks = 0

3. Hard constraints = 0 without concurrence; all constraints 5%

4. Leads = 0; lags 5%, each justified

5. Finish-to-start relationships 90%; Start-to-finish = 0

6. Negative float = 0 at baseline; any negative float in updates requires a…