ACS3_-_Statement_of_Work.pdf

Table of Contents

1. Introduction

1.1. Scope of Work

1.2. Documents

1.2.1. Compliance Documents

2. Description of Tasks / Technical Requirements

2.1. Task 1: Requirements Phase (ATP – Requirements Review)

2.1.1. ATP Kick‐Off Meeting

2.1.2. Requirements Review

2.2. Task 2: Design Phase (Post Requirements Review – Design Review)

2.2.1. Post Requirements Review

2.2.2. Design Review

2.3. Task 3: Build, Test, & Deliver Phase (Post Design Review – Spacecraft Bus Delivery)

2.3.1. Post Design Review

2.3.2. Acceptance Review

2.3.3. Flight Spacecraft Bus Delivery

2.4. Task 4: Spacecraft (Bus and Payload) Integration and Test Support

2.5. Task 5: Mission Operations Support

2.6. Task 6: Bus Engineering Development Unit

2.7. Option 1: Additional Spacecraft (Bus and Payload) Integration and Test Support

2.8. Option 2: Additional Spacecraft (Bus and Payload) Integration and Test Support

2.9. Option 3: Additional Mission Operations Support

2.10. Option 4: Additional Mission Operations Support

2.11. Option 5: Integration of cameras, UHF transmitter, and payload controller card by bus vendor prior to bus environmental testing

3. Period of Performance

4. Required Meetings

5. Deliverables

5.1. Hardware Deliverables

5.2. Recurring Deliverables

5.3. Support to Project Deliverables

5.4. Contractor Data Deliverables

6. Acronyms

7. List of Attachments

A final objective of the ACS3 experiment will be to assess the fundamental structural dynamic properties of the deployed solar sail structure. This will be attempted through a combination of videogrammetry of low frame‐rate camera data and analysis of attitude sensing and control data. After completion of all priority demonstration objectives, the ACS3 solar sail will be oriented to a maximum drag attitude to accelerate de‐orbiting.

The ACS3 project is funded through NASA’s Small Spacecraft Technology Program (SSTP), whose primary objectives are to identify and support the development of new subsystem technologies to enhance or expand the capabilities of small spacecraft; support flight demonstrations of new technologies, capabilities, and applications for small spacecraft; and use small spacecraft as platforms for testing and demonstrating technologies and capabilities that might have more general applications in larger‐scale spacecraft and systems.

1.1. Scope of Work

NASA is procuring a spaceflight‐qualified 12U CubeSat bus to host a NASA‐developed solar sail payload, and equipment, documentation, and services to support that bus. The bus shall be delivered no later than 16 months after contract award. Mission operations will be developed, managed, and executed through an ARC support service contract, with oversight from NASA and coordination from the ACS3 contractor (Options 3 and 4). A notional ACS3 Concept of Operations document is provided for reference (Attachment C). Additional documents and requirements are listed in Section 1.2.1 and provided as attachments and shall be complied with during contract performance. A complete list of the required tasks and options can be found in Table 1.

This Statement of Work defines the required technical content, documentation, meetings, and deliverables.

1.2. Documents

1.2.1. Compliance Documents

Included below are compliance documents the Contractor shall follow which are attachments to this document:

A) ACS3 Payload to Spacecraft Bus ICD B) ACS3 Spacecraft Bus Requirements C) ACS3 Concept of Operations D) ACS3 Attitude Control Supplement E) ACS3 Ground Supplement F) ACS3 Safety and Mission Assurance Plan G) GSFC‐STD‐7000A, General Environmental Verification Standard (GEVS) H) NASA‐STD‐6016A, Standard Materials and Processes Requirements for Spacecraft

2. Description of Tasks / Technical Requirements

A summary of the tasks and options presented in this SOW can be found below in Table 1 and Figure 2.

upon before the conclusion of the meeting as well as a date for the Requirements Review or a plan for scheduling a date.

2.1.2. Requirements Review

The Requirements Review is an opportunity for NASA and the Contractor to layout the driving requirements for the bus to ensure the requirements are understood and the delivered bus meets the project’s needs. It is a chance for face‐to‐face discussion of the requirements to ensure the delivered bus meets the project’s needs. Table 2 lists NASA’s expectations for a successful Requirements Review.

The Contractor shall support the integration of the bus to the NASA solar sail payload at NASA ARC. Time on‐site at NASA ARC is estimated to be seventy‐five (75) hours, and may include such activities as bus handling, assembly to the payload, and flight system checkout post environmental testing. On‐site versus remote support for these activities is negotiable. Travel and labor costs should be included in the price quoted. In addition, the Contractor may be asked to provide additional support in excess of the aforementioned seventy‐five (75) hours (see Option 1 and 2).

2.5. Task 5: Mission Operations Support

The Contractor shall support the early stages of the mission operations phase, location is TBD near NASA Ames Research Center. Time on‐site is estimated to be seventy‐five (75) hours, with activities centered on successful commissioning of the bus. Services could include aid with command load simulations and verification, on‐orbit bus and payload calibration, on‐orbit payload characterization, and fault management and anomaly resolution. Bus health and status (H&S) telemetry analysis may be required in the event of anomalous or unexpected bus behaviors. The contractor’s monthly report shall provide a summary of work performed for Mission Operations Support. Travel and labor costs should be included in the price quoted.

In addition, the Contractor may be asked to provide additional support in excess of the aforementioned seventy‐five (75) hours (see Option 3 and 4).

2.6. Task 6: Bus Engineering Development Unit

The Contractor shall deliver an engineering development unit (EDU) of the bus that is a form, fit, and function equivalent of the flight unit for use in interface verification, fit checks, and payload/bus script development and testing. Pre‐release flight software with periodic updates is acceptable. Composite solutions are also acceptable (e.g., one unit that satisfies function like a “flatsat,” and another that satisfies form and fit). Shipping and a shipping container should be included in the price.

2.7. Option 1: Additional Spacecraft (Bus and Payload) Integration and Test Support

The Contractor shall provide additional support (in excess of that provided in Task 4) of the integration of the bus to the NASA solar sail payload at NASA ARC. Time on‐site at NASA ARC is estimated to be seventy‐ five (75) hours, and may include such activities as bus handling, assembly to the payload, and flight system checkout post environmental testing. The contractor’s monthly report shall provide a summary of of work performed for Integration and Test Support. Travel and labor costs should be included in the price quoted.

2.8. Option 2: Additional Spacecraft (Bus and Payload) Integration and Test Support

The Contractor shall provide additional support (in excess of that provided in Task 4) of the integration of the bus to the NASA solar sail payload at NASA ARC. Time on‐site at NASA ARC is estimated to be thirty‐ five (35) hours, and may include such activities as bus handling, assembly to the payload, and flight system checkout post environmental testing. The contractor’s monthly report shall provide a summary of work performed for Integration and Test Support. Travel and labor costs should be included in the price quoted.

2.9. Option 3: Additional Mission Operations Support

The Contractor shall provide additional support (in excess of that provided in Task 5) of the mission operations phase, location is TBD near NASA Ames Research Center. Time on‐site is estimated to be seventy‐five (75) hours, with activities centered on successful commissioning of the bus. Services could include aid with command load simulations and verification, on‐orbit bus and payload calibration, on‐ orbit payload characterization, and fault management and anomaly resolution. Bus health and status (H&S) telemetry analysis may be required in the event of anomalous or unexpected bus behaviors. The contractor’s monthly report shall provide a summary of work performed for Mission Operations Support.

Travel and labor costs should be included in the price quoted.

2.10. Option 4: Additional Mission Operations Support

The Contractor shall provide additional support (in excess of that provided in Task 5) of the mission operations phase, location is TBD near NASA Ames Research Center. Time on‐site is estimated to be thirty‐ five (35) hours, with activities centered on successful commissioning of the bus. Services could include aid with command load simulations and verification, on‐orbit bus and payload calibration, on‐orbit payload characterization, and fault management and anomaly resolution. Bus health and status (H&S) telemetry analysis may be required in the event of anomalous or unexpected bus behaviors. The contractor’s monthly report shall provide a summary of work performed for Mission Operations Support. Travel and labor costs should be included in the price quoted.

2.11. Option 5: Integration of cameras, UHF transmitter, and payload controller card by bus vendor prior to bus environmental testing

In addition to the primary sail/boom subsystem, NASA will be incorporating three minor subsystems into the spacecraft bus: 1) cameras (4 planned) for imaging the booms and sail during and following deployment; 2) a UHF transmitter (beacon) in addition to the S‐band transceiver: and 3) the payload controller card. The Contractor shall integrate these subsystems mechanically and electrically into the spacecraft bus as part of the spacecraft bus integration and test flow prior to environmental testing.

6. Acronyms

ACS3 Advanced Composite Solar Sail System

ARC NASA Ames Research Center

ATP Authority to Proceed

CAD Computer Aided Design

CDR Critical Design Review

CDRL Contract Data Requirements List

CoFR Certification of Flight Readiness

ConOps Concept of Operations

COR Contracting Officer’s Representative

CM Configuration Management

CMD Command

EDU Engineering Development Unit

EICD Electrical Interface Control Drawing

EIDP End Item Data Package

FRR Flight Readiness Review

FSW Flight Software

GEVS General Environmental Verification Standard

GSE Ground Support Equipment

H&S Health and Safety

HW Hardware

I&T Integration and Test

IMS Integrated Master Schedule

ICD Interface Control Document/Drawing

LaRC NASA Langley Research Center

Level 1 Project‐level Requirements (e.g., The ACS3 project shall…)

Level 2 System‐level Requirements (e.g., The System shall…)

Level 3 Element‐level Requirements (e.g., The Spacecraft Bus shall…)

LSE Lead Systems Engineer

LV Launch Vehicle

MICD Mechanical Interface Control Drawing

NASA National Aeronautics and Space Administration

ODAR Orbital Debris Assessment Report

ORR Operational Readiness Review

PDR Preliminary Design Review

PM Project Manager

RF Radio Frequency

RFA Request for Action

RFP Request for Proposal

S&MA Safety and Mission Assurance

S/C Spacecraft

SCU Santa Clara University

SOW Statement of Work

SRR System Requirements Review

SSTP Small Spacecraft Technology Program

TBD To Be Determined

TBR To Be Refined

TBS To Be Supplied

TLM Telemetry

TPM Technical Performance Measure

V&V Verification and Validation

7. List of Attachments A) ACS3‐02‐005 (Rev ‐), ACS3 Payload to Spacecraft Bus ICD B) ACS3‐06‐001 (Rev A), ACS3 Spacecraft Bus Requirements C) ACS3‐02‐001 (Rev ‐), ACS3 Concept of Operations D) ACS3‐02‐007 (Rev ‐), ACS3 Attitude Control Supplement E) ACS3‐02‐008 (Rev ‐), ACS3 Ground Supplement F) ACS3‐03‐001 (Rev ‐), ACS3 Safety and Mission Assurance Plan G) GSFC‐STD‐7000A, General Environmental Verification Standard (GEVS) H) NASA‐STD‐6016A, Standard Materials and Processes Requirements for Spacecraft