J_Payment Milestones and Acceptance Criteria.pdf
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- Solicitation number
- SCAN-MSFC-0001
About this file
This document is Solicitation Attachment J, which specifies the milestone payments and acceptance criteria for the NEXUS contract across three Contract Line Items (CLINs).
CLIN 1 contains a single milestone for V&V Compliance Assessment and Preliminary Design Report, due within 3 months of award. Acceptance requires demonstration of requirement-by-requirement traceability, verification methods, planned verification timing, identification of on-orbit demonstration requirements, and an Interim Design Report with no significant findings. Payment is 30% of CLIN 1 value upon Government acceptance. CLIN 2 encompasses three milestones: Integration Checkpoint (10% payment) requiring finalized baselines for System Requirements Control Matrix, System Development and Verification Plan, Interface Control Documents, System Architecture Document, System Test Plan, and other supporting documentation at baseline maturity; Demo Ground Test Complete (10% payment) requiring system assembly, integration, ground verification, RF compatibility testing completion, and objective evidence of technical performance; and Demo Readiness Review (20% payment) requiring hardware/software readiness, all regulatory approvals and spectrum licenses, risk management documentation, and final system architecture with detailed demonstration schedule. CLIN 3 contains two milestones: Capability Launch (35% payment) requiring the payload in-orbit on or before June 30, 2028 with successful deployment; and Demo Performance Validation Complete (10% payment) requiring successful end-to-end on-orbit demonstration, backward-compatible relay service demonstration with Government users, resolution of all anomalies, validation of commercial viability, and delivery of all required data and lessons learned with all Level 1 requirements closed within 30 days of flight test completion.
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NEXUS,
Solicitation Attachment J
Milestone Payments and Acceptance Criteria
CLIN 1
Milestone 1: V&V Compliance Assessment and Preliminary Design Report
Delivery of the V&V Compliance Assessment and a mid-phase design maturity review
Acceptance Criteria:
• Government acceptance that the contractor has demonstrated:
• Requirement-by-requirement traceability
• Verification methods (test, analysis, demonstration, inspection)
• Planned timing for verification and validation
• Identification of which requirements must be demonstrated on-orbit
• Interim Design Report delivered within 3 months of award and reviewed with no significant findings that would invalidate the design for flight.
Payment: 30% of CLIN 1 value at Government acceptance.
CLIN 2
Milestone 1: Integration Checkpoint
Integration maturity review.
Acceptance Criteria:
Government acceptance that the following are at Baseline maturity:
• SRCM: Final baseline with all TBD/TBR items resolved.
• SDVP: Finalized plan with all procedures and success criteria locked.
• Updated VCNs: As applicable.
• ICDs: Final, fully frozen baseline with documented external partner agreement.
• SAD, STP, IPDRMP, SFPSD: All finalized and aligned with the mature design.
• Training Emulator: Full-featured version with complete documentation.
• CSOP: Formal baseline aligned with the final system architecture.
Payment: 10% of CLIN 2 value at Government acceptance
Milestone 2: Demo Ground Test Complete
Completion of system assembly, integration, ground verification, and RF compatibility testing.
Acceptance Criteria:
• System Realization: Hardware and software build complete.
• Integration: System fully integrated in final demonstration configuration.
• Configuration Alignment: As-built system matches final design baselines.
• Ground Testing: All required tests successfully completed with verified results.
• RF Compatibility: All RF tests passed with acceptable performance.
• Anomaly Resolution: All critical anomalies resolved and re-tested.
• Performance Evidence: Objective evidence that technical performance criteria were met
(not just documentation).
Payment: 10% of CLIN 2 value at Government acceptance
Milestone 3: Demo Readiness Review (DRR)
Delivery and acceptance of the full DRR package.
Acceptance Criteria:
• Hardware/Software/Ground Readiness: System fully integrated, tested, and ready to support the demonstration.
• Launch & Regulatory Compliance: All required regulatory approvals, safety documentation, and spectrum licenses complete.
• Risk Management: Remaining risks clearly defined with actionable mitigations.
• Architecture & Schedule: Final, stable system architecture and detailed demonstration execution schedule delivered.
Payment: 20% of CLIN 2 value at Government acceptance
CLIN 3
Milestone 1: Capability launch
Capability payload is in-orbit on or before June 30, 2028
Success Criteria:
Successful payload deployment to orbit
Payment: 35% of CLIN 3 value at Government acceptance
Milestone 2: Demo Performance Validation Complete
Execution of on-orbit demonstration and delivery of Phase 3 DRDs.
Success Criteria:
• Successful execution of end-to-end on-orbit demonstration across space, ground, network, and operations elements.
• Backward-compatible relay service demonstrated with a Government user or representative interface.
• All demonstration success criteria met with verified operational, technical, and interface performance.
• All anomalies resolved or dispositioned.
• Demonstration validates commercial operational viability and scalability.
• Required data, analyses, reports, and lessons learned delivered.
Specific DRD Criteria:
• Final VCNs (NEXUS-DRD-003): All Level 1 requirements closed with flight-proven evidence within 30 days of flight test completion.
Payment: 10% of CLIN 3 value at Government acceptance
File details come from the government source that posted it. Updated .