- Jul 2020
The Kick-Off meeting defines the scope of work, work packages and formal system requirements between all partners.
- Q4 2020
Preliminary Design Review
The PDR will confirm that all subsystems, and their enabling building blocks have been defined appropriately, and will satisfy mission requirements. It will also present an opportunity to ensure risks have been identified and appropriate mitigation plans are in place.
- Q2 2021
Critical Design Review
The CDR will ensure that all specifications, drawings and documentation have been appropriately defined and captured. Analysis of designs will be re-verified following any changes from the PDR. The successful completion of the CDR will permit manufacture, assembly and programming of the hardware that will be launched into space.
- Q1 2022
Test Readiness Review
The Test Readiness Review will be a necessary stage-gate, to ensure that all sub-systems, and the system as a whole is ready to undergo rigorous testing. The meeting will require all test plans, test specifications and procedures to be in place before the Test Manager will sign off on Test Readiness.
- Q2 2022
Flight Readiness Review
The Flight Readiness Review will assess the status of the spacecraft systems prior to delivery to the launch provider.
- Q3 2022 (L=0)
The all important launch will send SpIRIT into a Sun Synchronous Orbit around Earth.
The first few hours after launch are critical to ensure the spacecraft will be ready to begin communicating with the ground. First any spinning is slowed, and then initial communications and basic spacecraft checkout can begin.
Checkout & Commissioning
SpIRIT will go through sequential checkout and commissioning of the spacecraft and then each payload. This will ensure all instruments and scientific experiments are calibrated and functioning correctly.
The main operational phase of SpIRIT will see the TheMIS, Hermes, Mercury, and NAIGS modules alternately function, ensuring all modules receive sufficient operational time and use of resources on-board. Additionally, the Thruster module will undergo brief but regular periodic checkouts to establish the long-term stability of the module.
Once the main operational phase of the SpIRIT mission is complete, the Thruster Module will undergo extensive testing to establish its potential for orbital manoeuvres, as well as stress-testing the spacecraft’s power system.
In accordance with international agreements, the SpIRIT spacecraft will be safely disposed of into the atmosphere, where it will gradually burn up, keeping Earth’s orbit clear for future explorers.