Gamma-ray Transients Monitor
Introduction
What is GTM?
Mission Overview
The Gamma-ray Transients Monitor (GTM) is a secondary science payload on board Formosat-8B (FS-8B), a Taiwanese remote-sensing satellite launched in 2026.Science
The goal of GTM is to monitor Gamma-Ray Bursts (GRBs) and other bright gamma-ray transients in the space.
Instrument
GTM consists of two identical modules located on two opposite sides of FS-8B. Each module has four sensor units facing different directions to cover half of the sky. The two modules will then cover the whole sky, including the direction occulted by the Earth. Each sensor unit is composed of a GAGG scintillator array to be readout by SiPM with 16 pixel-channels.
Timeline
Milestone
2020.08: Mission Start
2022.06: EM Assembly
2022.09: EQM Assembly
2023.04: FM Assembly
2023.09: Submit to TASA
2023.11: SDC Ready
2026.01: Launch
News
The Latest GRB
Satellite
Real-time Position
Altitude
Longitude
Latitude
Guide