Lena Okajima
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View article: ALE'S Mass Driver Experiment: Investigating Apophis Surface Dynamics for Planetary Defense and Resource Utilization
ALE'S Mass Driver Experiment: Investigating Apophis Surface Dynamics for Planetary Defense and Resource Utilization Open
Introduction: Asteroid (99942) Apophis’ Earth flyby in 2029 presents a unique opportunity to investigate how its surface material behaves under gravitational and external force influences. The ExLabs-led ApophisExL mission integrates multi…
View article: De-Orbit Maneuver Demonstration Results of Micro-Satellite ALE-1 with a Separable Drag Sail
De-Orbit Maneuver Demonstration Results of Micro-Satellite ALE-1 with a Separable Drag Sail Open
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) fo…
View article: Systemization and Development Status of Microsatellite-Friendly Multi-Purpose Propulsion System
Systemization and Development Status of Microsatellite-Friendly Multi-Purpose Propulsion System Open
This paper introduces Microsatellite-Friendly Multi-Purpose Propulsion (MFMP-PROP) we proposed as a promising propulsion system using low-toxic propellant for microsatellite, clarifies the development policy and positioning of MFMP-PROP am…
View article: A Study on PMD Device for Microsatellites Using Electrodynamic Tether
A Study on PMD Device for Microsatellites Using Electrodynamic Tether Open
A deorbit device is required for some microsatellites to meet space debris mitigation guidelines, although very challenging in terms of limited resources and reliability. The authors are conducting research on post-mission disposal (PMD) d…
View article: Design of a MEMS-Mirror-based Laser Pointing Control System of Optical Transponder for Micro-satellites
Design of a MEMS-Mirror-based Laser Pointing Control System of Optical Transponder for Micro-satellites Open
Optical communication technologies are regarded as an important breakthrough for future satellite communications. Tohoku University has been developing Adjustable beam angle Small Optical TrAnsponder (ASOTA) for micro-satellites. The desig…
View article: Evaluation of Artificial Meteor Sources with Arc Heater Wind Tunnel
Evaluation of Artificial Meteor Sources with Arc Heater Wind Tunnel Open
This paper proposes a mission for observation of the upper atmosphere using an artificial meteor released by a mass driver installed on a microsatellite. The mass driver releases the sample, which comprises definite materials and deorbits …