Gamma-ray Transients Monitor

GTM Image 1

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

Steps Image

News

The Latest GRB

Satellite

Real-time Position

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