SOW 144 eLib.pdf

Statement of Work Task: OSAM-1 GN&C Ground System Development, Test and Operations

Task Order: 144

Task Modification: 2

I. Summary of Changes in this Task Modification

• Extend the period of performance through 10/31/2024

• Update milestone and deliverables schedules

II. Summary of Work This Statement of Work (SOW) specifies work to be done and services to be provided in support of the On-orbit Servicing, Assembly and Manufacturing -1 (OSAM-1) Mission for the Guidance, Navigation and Control (GNC) Ground System (GS) Development and Mission Operations.

The GNC GS contains three subsystems:

• Flight Dynamics Subsystem (FDS)

• Attitude Ground Subsystem (AGS)

• Rendezvous and Proximity Operations Ground subsystem (RPO GS)

This task requires support of OSAM-1 Mission system and subsystem engineering, technology development, requirements definition, system design, documentation, development, integration and test for the ground system and mission operations.

Work covered under this task will focus on development of the OSAM-1 GNC Ground System architecture, requirements, interfaces, and associated technologies necessary to support the development of the flight systems as well as planning and developing a Mission Operations Concept.

III. Period of Performance The period of performance for this task will be from 11/01/2023 through 10/31/2024.

IV. Task Description The OSAM-1 Mission provides robotic on-orbit servicing capability to operational satellites located in Low Earth Orbit (LEO). The primary objective of the mission is to rendezvous, autonomously grapple and tele-robotically transfer propellant to a client satellite to extend its operational life, as well as demonstrate on-orbit manufacturing and assembly.

The OSAM-1 Mission will launch in the Feb 2026 (TBD) timeframe to provide client satellite refueling and life extension services. The OSAM-1 Mission consists of the OSAM-1 Servicing Vehicle (SV), the

Subtask 1: Ground System Development and Test Subtask Scope:

Work under this subtask includes design and delivery of the GNC GS to the OSAM-1 GE Development Lab as well as the OSAM-1 Mission Operations Center (MOC) and Backup Mission Operations Center (bMOC).

This task includes requirements management, engineering analysis, design, development, integration, and testing, as well as pre-launch and post-launch support of the GNC Ground System. This includes orbit determination, maneuvers, autonomy supervision of Payload RPO, situational awareness of orbit/attitude, ground based monitoring and validation of the SV Global Position System (GPS), and checkout and calibration of the bus and payload.

Work may include guiding requirements formulation and interface definition process and leading and overseeing engineering trades to aid in the definition of the GNC GS design, and will focus on integration of the GNC GS subsystems; developing, unit testing, and packaging software and scripting;

collaboration with the SV GNC team on operational procedures and concepts, and participation in verification and validation activities (planning, deployment to ops centers, execution, test reports).

Technical Requirements:

The GNS GS Subsystems will be designed to perform functions described below.

• The Flight Dynamics Subsystem (FDS) will:

• Conduct ground-based mission planning of maneuvers o LV dispersion clean up, Transit/Far-field Rendezvous maneuvers, Stack

Relocation, Decommissioning, Conjunction Assessment

• Monitor and validate Goddard Enhanced Onboard Navigation System (GEONS) filter

• Perform orbit determination on ground, orbit prediction for SV and L7

• Interface with FDF (Flight Dynamics Facility) to validate SV definitive solutions

• Interface with CARA (Conjunction Assessment Risk Analysis) for Collision Avoidance Maneuvers (CAM)

• Produce Orbit Planning Products: Acquisition Data (IIRVs), SN/NEN view periods, eclipse periods, etc.

• Perform maneuver evaluation (reconstruction/calibration)

• Support checkout and calibration of bus and payload

• The Attitude Ground Subsystem (AGS) will:

• Conduct ground-based attitude determination of SV/L7 o Calculate absolute attitudes of SV/L7 o Calculate relative attitude of SV/L7

• Predict attitude of SV o Plans attitude maneuvers for SV o Produce attitude planning products (constraint checking)

• Checkout and calibration of bus and payload

• Provide Free Drift Mode (FDM) Prediction Tool o Provide multiple FDM duration predictions using varying initial conditions for a given Ka Comm Pass in a human-friendly plot

• Provide FDM Real-time (RT) Prediction Tool o Determine the free drift duration to violate 30 degrees to an epoch in the future for a single FDM duration prediction for a current Ka Pass

• The Rendezvous and Proximity Operations Ground Subsystem (RPO GS) will:

• RPO sensor measurement data processing using VisPose Pose algorithm solution overlay.

o Visible and IR Camera pose (GNFIR-VIS, GNFIR-IR) o 3D LIDAR Pose (FPOSE)

• Validate onboard pose solution versus onboard imagery

• Provide visual status based on telemetry

Skill Requirements:

The following skills are required for this task:

• Systems Engineering – developing and documenting requirements and interface definitions for space missions and ground systems

• Software Engineering – architecting, designing, and development for satellite ground systems

• Domain Knowledge – orbital mechanics including orbit prediction and determination, maneuver planning, orbital events generation, attitude determination and control; and 3-D visualization.

• Experience Developing Existing GN&C Tools – FreeFlyer scripts, GEONS, AGS, Matlab

• Experience with GNC GS Software Development Tools

• Experience in satellite operations

Subtask 2: Mission Operations Support Subtask Scope:

Flight Operations Team activities will commence this year and will include documentation and operational planning in preparation for Ground Readiness Tests, Mission Readiness Tests, and the Mission Operations Review (MOR); operational product maturation and development; as well as preparation for and execution of initial End-to-End tests. The GNC FOT will continue to develop GNC Ground System Software, document algorithms, and document a training plan.

MOR Oct 2024

MRT 1 Oct 2024

VI. Management Approach

a. Staff Allocation, Expertise, and Skill Mix

The contractor shall staff this task with the appropriate skill mix and staffing level for the work.

b. Configuration Management

Systems and documents will be covered under the OSAM-1 Ground Element (GE) Configuration Management Plan (OSAM1-GS-PLAN-0045).

c. Facilities

Appropriate Information Technology devices to support the analyses, specification development, and testing development are required. NASA will provide and set up local workstations and network connections at NASA GSFC facilities as required. NASA will install any required tools and utilities on the provided equipment.

d. Risk Management and Best Practices

The contractor shall manage schedule, cost, and technical risk through monitoring and reporting of progress and performance metrics, identifying issues well in advance of negative consequences, recommending corrective action to the TM, and implementing corrective actions with the compliance of the TM. The contractor shall comply with the OSAM-1 Risk Management Plan (RL-MGMT-PLAN- 0090).

VII. Technical Evaluation The TM will evaluate the contractor’s performance based on the deliverables and schedule shown in Section V. Technical evaluation of the task performance is a subjective combination of technical quality of deliverables, cost control, significant events, innovations and meeting requirements set forth in the SOW.

VIII. Government Furnished Facilities, Equipment, Software and Other Resources The Government will provide account and passwords to government-furnished workstations where existing versions of various relevant software packages shall be maintained. It shall be the contractor’s responsibility to complete any GSFC required security-related training courses.

IX. Travel Local and non-local travel may be required for this task. Travel requirements may include, but are not limited to, spacecraft bus vendor in Palo Alto, CA, VAFB Launch Site, as well as travel to local contractor facilities. Additional travel may be required and will be evaluated by TM as needed.

X. Work Location This work shall be performed primarily on-site at the Goddard Space Flight Center, but the contractor may be required to perform some work at the contractor’s facility.

XI. Reporting Requirements Weekly Status Reports

The contractor shall generate status reports weekly. The report shall include, at a minimum, a summary of the week’s highlights, accomplishments, milestones, schedule, deliverables, and risks.

Monthly Status Reports

The contractor shall report status in person or via teleconference to the TM or designated alternates on a monthly basis. Reports shall include informal presentation of interim results, status of development activities, and action item status. The contractor shall provide all reports at least one day in advance of the monthly meeting via email and maintain an email distribution list with the concurrence of the TM. The contractor shall also support the TM in the preparation of status reviews for internal and external funding agencies. The contractor shall comply with any and all additional requests for status meetings and reports. The contractor shall deliver all documents in a format as directed by the TM.

XII. Security Requirements This task shall comply with IT security requirements as documented in the OSAM-1 Ground System Security Plan (OSAM1-GS-PLAN-0042).

XIII. References In the performance of this task, the contractor shall comply with the following documents:

1. NPR 7123.1D NASA Systems Engineering Processes and Requirements (w/ Change 2)

2. NPR 7150.2D NASA Software Engineering Requirements

3. NPR 7120.8A NASA Research and Technology Program and Project Management Requirements

4. OSAM-1 Systems Engineering Management Plan (SEMP), OSAM1-SYS-PLAN-0003

5. OSAM-1 Configuration Management Procedure, RL-MGMT-PROC-0110

6. OSAM-1 Risk Management Plan (RMP), RL-MGMT-PLAN-0090

7. OSAM-1 Mission Assurance Requirements (MAR), RL-SMA-REQ-0006

8. OSAM-1 Work Breakdown Structure (WBS) and WBS Dictionary, RL-MGMT-WBS-0002

9. OSAM-1 Mission Level 2 Requirements, document number OSAM1-SYS-REQ-0003

10. OSAM-1 Ground Element Level 3 Requirements, document number OSAM1-GS-REQ-0008

11. OSAM-1 Ground Element (GE) Configuration Management Plan, document number OSAM1-GS-

PLAN-0045

12. OSAM-1 Mission Project Security Plan, document number RL-MGMT-PLAN-0002

13. OSAM-1 Ground Element Software Development Plan, document number OSAM1-GS-PLAN-