Exhibit 5 - L10 Spacecraft Specifications Fill-in.pdf
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- Attached to
- Landsat 10 Spacecraft _ DRAFT RFP
- Solicitation number
- 80GSFC26D0015
About this file
This document is a Spacecraft Technical Specification Fill-In template designed to capture detailed technical requirements and capabilities for spacecraft bus systems proposed as solutions to federal contracting opportunities.
The template is organized into comprehensive subsystems covering spacecraft design across multiple functional areas. Key subsystem categories include: SC Bus Top Level Information (design life, mass, launch vehicle compatibility); Power (system design life, generation capacity, storage, voltage, solar array specifications, battery characteristics); Propulsion (delta-V capability, thruster specifications, propellant type, de-orbit reliability); Thermal (heater circuits, heat pipes, power consumption); Mechanical Structure and Mechanisms (release actuators, modal frequency, separation interfaces); Attitude Control (control modes, bandwidth, actuators, momentum bias); GNSS (receiver and antenna redundancy, frequency bands); Sensors (star trackers, gyros, magnetometers); Attitude Flight Software (processing rate, parameters, fault monitoring); Communications (command link security, encryption, transceivers, antennas, data rates for command and science links); Command and Data Handling (power consumption, processor specifications, memory storage, EDAC schemes); and Flight Software (development environment, implementation languages, operating system, software reuse metrics). The template includes columns for proposed specifications, product line specifications, units of measure, and notes sections to identify customization requirements or deviations from standard product line capabilities. An example fill-in is provided for the NCC-1701 Constitution Class spacecraft bus, demonstrating how to complete the form with specific technical parameters and noting areas requiring customization, such as bus voltage conversion from 70VDC to 28VDC and battery chemistry change from NiCAD to LiPo.
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Spacecraft Technical Specification Fill-In
Name of Bus Product Line for Proposed Solution:
Subsystem Proposed Spec/Capability Product Line Spec/Capability Units Notes SC Bus Top Level Information
Bus Design Life yr Launch Vehicle Compatibility (list) N/A
Mass SC Bus Dry Mass kg Proprellant Tank Capacity kg SC Wet Mass (excluding Instrument) kg
Power Power System Design Mission Life yr Power System Generation per Orbit W Power System Storage Capability per Orbit Ah Bus Voltage VDC Bus Regulation (Reg or Unreg.)
Bus type - Direct Energy Transfer (DET), Peak Power Tracker (PPT) Total Solar Array Area Solar Array EOL Power W Solar Array BOL Power W Number Solar Array Wings Number Solar Array Panels/Wing Solar Array articulation - Fixed, Single Axis, Two Axis Number of batteries Battery Capacity, Nameplate Ah Battery Capacity, EOL Ah Battery Capacity, BOL Battery Cell Management Required? Y/N Battery Qualified No. of Charge/Discharge Cycles Battery Cell Type Battery Chemistry
Electrical Instrument Power Capability, Orbital Avg W Instrument Power Capability, Max. Peak W SC Power Consumption, Orbital Avg. W SC Power Consumption, Max. Peak W Total unswitched services Total switched services
Propulsion Total delta-V Capability m/s System Type (Chemical or Electrical) System Regulation (Regulated or Blowdown) Propellant Type (Monopropellant or Bipropellant) Number of Thrusters Thruster Nominal Thrust N Thruster EOL Thrust N De-orbit Reliability, Components % Surge suppression device(s) used? Y/N Pressure Transducer EOL Full Scale Accuracy %
Thermal Heater Circuit Control (Software, Hardware or Both?)
Number of Heater Circuits Heater control bands (+/-) C Heat Pipes, Qty Loop Heat Pipes, Qty Heater, Wattage Range W Power Consumption, Orbital Avg W Power Consumption, Maximum W
Mechanical, Structure & Mechanisms Quantity of release actuators for launch locks Quantity of motors incorporated into mechanisms Minimum modal frequency, lateral and axial Hz Diameter of mechanical mating/separation interface to LV mm
Attitude Control Number of/List of ACS Control Modes E.g., earth observing, safe, Delta-V Controller bandwidth (ideally mode-by-mode) Hz Controller gain stability (ideally mode-by-mode) dB Controller rigid body phase stability (ideally mode-by-mode) deg Controller flex gain stability (ideally mode-by-mode) dB Momentum Bias Configurable? Y/N Power Consumption, Orbital Avg W Power Consumption, Maximum W
GNSS
Receiver Redundancy? Y/N Frequency Bands MHz Antenna Type Antenna Redundancy? Y/N Antenna, Qty Antenna, Coverage Sr
Actuators ACS Control Actuators, Qty (by mode) ACS Control Actuator Type, by mode ACS Steered Actuators, Qty (by mode) ACS Steered Actuator Type, by mode
Reaction Wheels, Qty Reaction Wheel/Bearing Rated Life Yr Reaction Wheel Momentum Capacity Nms Reaction Wheel Torque Ability Nm Torque Bar/rods, no. of axes controlled Torque Bar/rods, redundancy Torque Bar rating Am^2
Sensors Number of Sensors in Each Control Loop Star Trackers, Qty Gyro Sensor and Type CSS Coverage Sr Magnetometers, no. of axes sensed Magnetometers, redundancy Magnetometer, sensitivity nT
Attitude Flight Software Processing Rate Hz Ground-based calibration of ACS sensors needed Y/N Number of ground-uploadable parameters FSW provision to correct actuator and sensor polarity errors Y/N FSW updates patchable from the ground Y/N FSW reboot preserves previous parameter configuration Y/N Number of fault flags monitored
Communications Command Link Security
Encryption Type (GCM or CCM) Transmitted MAC Length bits Number of flight keys Compatible Ground Equip
Cmd & Telemetry General Parameters Transceiver Model Transceiver TRL Antenna Model Antenna TRL Estimated EIRP (boresite) dBW Estimated G/T (boresite) dB/K
Service Coding 28 kbps DTE Telemetry Service Coding 3 Mbps DTE Telemetry Service Coding 1 ksps DTE Command Service Coding 32 ksps DTE Command Service Coding 128 ksps DTE Command Service Coding
Science Link Transmitter Model Transmitter TRL High Speed Data Interface Model HPA Model
HPA TRL
HPA OBO dB HPA Power (@NOP) dBm Antenna Model Antenna TRL Antenna Diameter m Estimated Antenna Gain (boresite) dBi Gimbal Model (if applic) Gimbal TRL Estimated EIRP (boresite) dBW Total Information Rate (LHCP + RHCP) Gbps Modulation Coding (If SCCC, specify ACM mode) Baseband Filtering
Command & Data Handling Power Consumption, Orbital Avg W Power Consumption, Maximum W Instrument Interface, Bus #1
Data standard Nominal Transfer rate Gbps
Instrument Interface, Bus #2 Data standard Nominal Transfer rate Gbps
Instrument Interface, Bus #3 Data standard Nominal Transfer rate Gbps
Processor Type Clock Speed MHz Volatile Memory Capacity GB No. of FSW copies in Non-volatile memory
Mass Storage Device Memory Technology SEFI modes (list) EOL Capacity TB TID Rating Gy EDAC scheme Scrubbing rate MB/s
Flight Software
Dedicated SW Development Environment Y/N Primary Implementation Language(s) (list) Real-Time Operating System (name) Software Re-Use, Approximate Amount % Relative to standard FSW load & per Landsat 10 requirements
Name of Bus Product Line for Proposed Solution: NCC-1701 Constitution Class
Subsystem Proposed Spec/Capability Product Line Spec/Capability Units Notes SC Bus Top Level Information
Bus Design Life 10 15 yr Mass
SC Bus Dry Mass 1200 1500 kg Proprellant Tank Capacity 200 350 kg
Power Power System Design Mission Life 10 15 yr Power System Generation per Orbit 1000 1000 W Bus Voltage 28 Requires Customization VDC Product line std is 70VDC bus Bus Regulation (Reg or Unreg.) Reg Reg Solar Array EOL Power 800 900 W Battery Chemistry LiPo Requires Customization Product line std is NiCAD
Thermal Heat Pipes, Qty 5 5 Loop Heat Pipes, Qty N/A N/A LHPs are not utilized
EXAMPLE Spacecraft Technical Specification Fill-In EXAMPLE
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