The on-board scientific software of the HERMES missions

A. Guzman; P. Hedderman; M. Klawin; Y. Evangelista; R. Campana; S. Pliego-Caballero; A. Nuti; E. Marchesini; F. Fiore; A. Santangelo

doi:10.1117/12.3019145

21 August 2024 The on-board scientific software of the HERMES missions

A. Guzman, P. Hedderman, M. Klawin, Y. Evangelista, R. Campana, S. Pliego-Caballero, A. Nuti, E. Marchesini, F. Fiore, A. Santangelo

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130936I (2024) https://doi.org/10.1117/12.3019145
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The Technological and Scientific Pathfinders of the High Energy Rapid Modular Ensemble of Satellites (HERMES) are a constellation of low Earth orbit (LEO) novel CubeSats devoted to the monitoring of high energy sky. These 3U nanosatellites are equipped with miniaturized detectors specifically crafted for detecting bright high-energy transients, such as Gamma-Ray Bursts (GRBs). Their primary objective is to advance Gamma Ray Burst (GRB) science and improve the identification of Gravitational Wave (GW) electromagnetic counterparts. The overall localization performance of the constellation is directly related to the number of components and inversely proportional to the average baseline between them, therefore it is expected to improve with each new unit starting operation. This paper presents the design of the onboard scientific software that runs on the Payload Data Handling Unit (PDHU) on-board the HERMES missions. Besides serving as the main interface between the payload and the satellite bus, the PDHU manages the on-board control, monitoring and data acquisition of the HERMES detectors. This monitoring will emit a “trigger” alert when a transient is present in the data. In this work, we discuss the on-board data processing, particularly the trigger-performance. We showcase some results using flight hardware and software, albeit in a laboratory environment, and compare these results with simulated data.

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A. Guzman, P. Hedderman, M. Klawin, Y. Evangelista, R. Campana, S. Pliego-Caballero, A. Nuti, E. Marchesini, F. Fiore, and A. Santangelo "The on-board scientific software of the HERMES missions", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130936I (21 August 2024); https://doi.org/10.1117/12.3019145

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