SpaceWire-based Data Acquisition Network for the Solar Flare Sounding Rocket Experiment FOXSI-4 and FOXSI-5
Shunsaku Nagasawa, Athanasios Pantazides, Kristopher Cooper, Riko Shimizu, Savannah Perez-Piel, Takahiro Minami, Yixian Zhang, Hunter Kanniainen, Shin Watanabe, Tadayuki Takahashi, Noriyuki Narukage, Juan Camilo Buitrago Casas, Lindsay Glesener

TL;DR
This paper presents a SpaceWire-based data acquisition system designed for the FOXSI-4 and FOXSI-5 solar flare sounding rocket experiments, enabling high-speed, reliable, and scalable data handling for advanced solar X-ray observations.
Contribution
The paper introduces a modular, FPGA-based SpaceWire DAQ architecture that standardizes communication, supports diverse detectors, and facilitates distributed development for solar flare experiments.
Findings
Successful observation of a GOES M1.6 class solar flare with FOXSI-4
Implementation of a scalable, reliable SpaceWire-based DAQ network
Real-time telemetry and adaptive control during flight
Abstract
We developed a SpaceWire-based data acquisition (DAQ) system for the FOXSI-4 and FOXSI-5 sounding rocket experiments, which aim to observe solar flares with high sensitivity and dynamic range using direct X-ray focusing optics. The FOXSI-4 mission, launched on April 17, 2024, achieved the first direct focusing observation of a GOES M1.6 class solar flare with imaging spectroscopy capabilities in the soft and hard X-ray energy ranges, using a suite of advanced detectors, including two CMOS sensors, four CdTe double-sided strip detectors (CdTe-DSDs), and a Quad-Timepix3 detector. To accommodate the high photon flux from a solar flare and these diverse detector types, a modular DAQ network architecture was implemented based on SpaceWire and the Remote Memory Access Protocol (RMAP). This modular architecture enabled fast, reliable, and scalable communication among various onboard…
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Taxonomy
TopicsSolar and Space Plasma Dynamics · Space Technology and Applications · Earthquake Detection and Analysis
