The primary mission of EXACT is to accurately measure the time of arrival of hard X-ray (HXR) and soft γ-ray photons from pulsars to test and validate new techniques for clock synchronization (i.e. time-transfer) in Low Earth Orbit (LEO) in GPS/GNSS-denied conditions.
The secondary mission of EXACT is to measure solar X-ray photon energies and arrival times to study electron acceleration in solar flares which are major drivers of space weather events. Data from EXACT will be post-processed to validate pulsar-based clock synchronization techniques and theoretical models behind space weather events.
1. EXACT Overview
2. Mission Statement
3. Research Significance
4. Mission Objectives
5. Organization
6. Timeline
7. Current Status
8. Collaborators
9. Subsystems