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Satellite Program

1. SPACE ​PROGRAM

The following provide an overview of classification of work required for a successful satellite program.

  1. Satellite
  2. Ground Station – mission control and operation
  3. Launch
  4. Data Analysis
  5. SaRC Activities

2. SATELLITE MO​DU​LES

Since the setup of SaRC, the centre has designed, built, tested, launched and operated 7x satellites (dated July 2018). Nanosatellites with non-space grade chips have been flight proven for more than 2 years. The actual operational data has given SaRC futher understanding of the design and performance requirement of satellite.

The modules required in a Satellite system are:

  1. On Board Computer
  2. Communication module (UHF/VHF/S/X Band or etc)
  3. Attitude Determination and Control System (ADCS)
  4. Power system (Solar Panel)
  5. Payload (eg Camera, sensor…etc)

3. SATELLITE ​PROG​RAM ORGANIZATION

In order to execute a program, organisation of the team to enable efficient execution is important. Different expertise are request to be coordinated in a satellite program.

 

4. DEVELOPMENT FLOW AN​​D TESTING

 

The sub systems in a satellite have to be tested before integration.
The initial stage is the setup of flatsat (2D model), thereafter a Qualification Model (3D model) is built to be tested under a stringent specification. Once qualified, the actual flight model is built for launch. Calculation, simulation and test are done to validate and verify the operation. The following listed some of the key processes:

  • Thermal analysis
  • Structure analysis
  • Power Budget
  • Mass Budget
  • Link Budget
  • Mission Plan
  • Thermal Cycle Test
  • Thermal Vacuum Test
  • Vibration Test
  • Shock Test
  • EMC Test
  • E2E test (End to End)
  • Qualification and Flight level test
  • Mechanical Property Measurement

QM : Qualification Model
FM: Flight Model
STM: Structure Model
PFM: Proto- Flight Model

5. MISSION CONTRO​L

Mission and Satellite control have to be planned in early stage. The execution of the satellite will face issues if this is not well considered in the early implementation stage.

 

Mission control and execution is an important aspect of satellite design.
SaRC mission control centre is operating 24/7 automatically for all satellites.​​

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