Operation Modes
The FASTRAC satellites have been designated with 15 unique operational modes within four distinct regimes of flight: pre-launch, launch, pre-separation, post-separation. However, since the satellite will be powered down until after ejection from the launch vehicle and the CAPE canister, the majority of the satellite operational modes deal with the pre-separation and post-separation phases of flight.
- Ground Diagnostic
The purpose of the ground diagnostic is to check the satellite status via telemetry and direct data link while on ground. - Launch
The main purpose of the launch operational mode is to ensure that the satellite complies with NASA Shuttle launch requirements. - Pre-Separation
The separation phase of flight begins after the CAPE canister is ejected from the Shuttle and the FASTRAC satellite pair is ejected from the CAPE canister. This signifies the official start of FASTRAC mission. Satellite inhibits are released at time of ejection from CAPE and illumination by sun. - Post-Separation
The separation phase of flight signifies the beginning of the FASTAC science mission. At this point, the checkout phase has been completed and all systems are ready for final implementation.