Banner
 

SwRI Gound and Airborne Support Equipment

SwRI's development effort included the design and implementation of sophisticated Ground Support Equipment (GSE) and Airborne Support Equipment (ASE). The GSE provides control and recording capability of the state of the spacecraft and its subsystems during many phases of integration and testing, including initial bring-up, Solar Array Simulation, Science Simulation, EMI testing, Vibration testing, Thermal Vacuum testing, Flight Software testing, mission simulations, Pegasus rocket integration testing, L1011 integration testing, CYGNSS deployment module testing, launch operations testing and during the launch itself.

gse1a.jpg

gse1b.jpg

These support systems made it possible to test the CYGNSS subsystems throughout the development process. Much like the spacecraft themselves, the GSE is made up of a diverse array of components representing just about every subsystem of the spacecraft as well as the external systems such as operational software and data logging. These support systems were assembled from SwRI custom-designed products and integrated with subcontractor provided elements and Commercial Off-The-Shelf (COTS) components. The main GSE is coordinated by custom SwRI software and is fully automated, allowing for iterative, consistent and reliable testing of the multiple CYGNSS spacecraft, the Engineering Model (EM) and additional equipment such as surrogate batteries were developed and supported the EM and FM spacecraft integration and testing process. The GSE provides interfaces for RF communications, batteries, telemetry, solar arrays, attitude control and simulation, science instrument RF simulation data, launch control, and launch management. The GSE is also capable of mission simulation thus allowing mission engineers to create and test mission operations scenarios before deploying them on the actual spacecraft.

gse2.jpg

The GSE is computer controlled and automated, using the actual mission operations software (ITOS) as a test framework; this made the transition of staff from development to operations very easy and cost-effective. The staff who would go on to operations would be very familiar with the spacecraft telemetry and operation and be comfortable commanding and monitoring the spacecraft during launch, commissioning and operations.

gse3.jpg

The GSE is computer controlled and automated, using the actual mission operations software (ITOS) as a test framework; this made the transition of staff from development to operations very easy and cost-effective. The staff who would go on to operations would be very familiar with the spacecraft telemetry and operation and be comfortable commanding and monitoring the spacecraft during launch, commissioning and operations.

gse4.jpg

The GSE are robust, compact and portable. The GSE was used extensively at SwRI, and continued to support I&T when shipped to VAFB, Cape Canaveral Air Force Station and on the L-1011 Stargazer aircraft.

gse5.jpg

Post-launch, the GSE will continue to support CYGNSS until the end of mission and beyond by allowing the CYGNSS EM to be used for ongoing testing and mission support and future research.

Related Papers

Simulators, Software and Small Satellites

 

Related Links

Southwest Research Institute

 Home
 Latest Status
 Fact Sheet
 Management
 Systems Engineering
 Structural, Thermal & Mechanical
 Communication & Data System
 Electrical Power Subsystem
 Attitude Determination & Control
 Flight Software
 Deployment Module
 Assembly, Integration & Test
 Airborne & Ground Support  Equipment
 Launch Vehicle
 Mission Operations
 Papers
 Contact Information
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Website maintained by SwRI® Space Science & Engineering Division