Structural Design and Verification of Aeronomy Study Satellite ALE-1

Tangdhanakanond, Pasith; Kuwahara, Toshinori; Shibuya, Yoshihiko; Honda, Tomoyuki; Pala, Alperen; Fujita, Shin; Sato, Yuji; Shibuya, Tomomasa; Koh, Kern

doi:10.2322/tastj.19.42

Cited by 2 publications

(2 citation statements)

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“…The entertainment aspect involves the development of a service that allows people to enjoy shooting stars from any ground position at any given time. The scientific observation aspect aims to gather data on luminous phenomena in the upper atmosphere, which can be used to investigate the characteristics of the upper atmosphere and the re-entry behavior of small objects [6][7][8][9]. In order to prevent collisions with other spacecraft in orbit, it is crucial to ensure that the pellets are carefully ejected.…”

Section: Ale-1mentioning

confidence: 99%

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De-Orbit Maneuver Demonstration Results of Micro-Satellite ALE-1 with a Separable Drag Sail

et al. 2023

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ALE-1, a micro-satellite created for the demonstration of artificial shooting stars, required orbital descent before mission execution due to safety aspects in orbit. ALE-1 utilized a drag sail called SDOM (Separable De-Orbit Mechanism) for a passive de-orbit maneuver, which was successfully completed, lowering the orbit from about 500 km down to about 400 km. This paper summarizes the detailed history of satellite operation and the results of the de-orbit maneuver demonstration during the past three years. Although the SDOM sail faced difficulty in keeping the desired deployed shape of the drag sail due to mechanical troubles, by letting the sail be a drag flag instead, it could still deliver a meaningful de-orbit performance to allow the satellite to successfully lower the orbit as planned. The de-orbit effect of the drag flag was evaluated using comparisons between orbit propagation simulations and the actual orbit transition flight data provided in the form of TLE (Two-Line Element) sets. Through this study, it is demonstrated that the SDOM can provide orbit transfer capabilities for satellites. Furthermore, the de-orbit performance of the drag flag can be evaluated, which could be an important reference for the future implementation of de-orbit devices to solve space debris problems.

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Section: Ale-1mentioning

confidence: 99%

“…A detailed description of the mechanisms and satellite subsystems of ALE-1 can be found in [7,18,19]. Each phase transition is initiated by stored commands that are uplinked from the ground station after the required status checks for each phase transition have been verified [11].…”

Section: Mission Historymentioning

confidence: 99%