CLIN1_VADR_LSIRD_Template_EXAMPLE.pdf

Rev. A, Date

Note: This LSIRD template includes an example of the type of spacecraft requirements that may be included as part of an

RLSP for a CLIN 1 launch service.

[Mission Name] VADR Launch Services Interface Requirements Document (LSIRD)

1 INTRODUCTION AND SCOPE

This section summarizes the SC and mission.

2 SPACECRAFT MASS

2.1 Not to Exceed (NTE) Mass

The SC NTE mass is [XX.XX] kg.

2.2 Current Best Estimate (CBE) Mass

The SC CBE mass is [XX ± XX] kg. The SC CBE mass properties are shown in Table 1.

Table 1 - SV Current Best Estimate (CBE) Mass Properties

Description Axis CBE Uncertainty

Center of Gravity (mm)

X

Y

Z

Moments of Inertia (kgm2)

IXX

IYY

IZZ

3 SPACECRAFT VOLUME

This section defines the SC’s NTE dimensions and notes any excursions below the separation plane with dimensions.

• Provide SC figures with dimensions o Top and side views

4 MISSION DESIGN

This section defines the SC orbit and separation requirements. Includes any additional requirements such as (but not limited to) thermal roll, sun-angle restrictions, or ascent duration as necessary.

• Orbital insertion requirements

• Separation and tip-off requirements

• Launch period

Rev. A, Date

5 STRUCTURAL INTERFACES

• Define the SC to LV mechanical interface requirements

• Define the separation system requirements or design details if known

• Define the SC coordinate system and origin (this can be shown in section 3)

• Define the SC to LV interface plane (this can be shown in section 3)

6 ELECTRICAL INTERFACES

• Define the electrical interfaces o Number of pins needed in the IFD(s)

▪ Power circuits

▪ Data circuits

▪ SC separation indicator loops

7 ENVIRONMENTS

This section defines the environments the SC is designed to if they are known. After the contract is awarded, the LV specific environments will be defined in the ICD.

• Dynamic Environments o Vibration

▪ Random

▪ Sine o Acoustics o Shock

• EMC-RF

• Ground Operations Temperature and Humidity

• Contamination Control requirements above and beyond ISO Class 8

8 GROUND PROCESSING

8.1 Payload Processing Facility (PPF) Requirements

• PPF occupancy duration o Pre-integration SC standalone processing

• Fueling requirements (if any)

• Lifting, handling, or orientation requirements

• SC hazards

9 ADDITIONAL MISSION SPECIFIC REQUIREMENTS

This section defines any additional mission specific requirements..