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Outputs (14)

Optimal Low-Thrust Transfers Between Relative Planar and Spatial Quasi-Satellite Orbits in the Earth–Moon System (2025)
Journal Article
Pushparaj, N., Hiraiwa, N., Hayashi, Y., & Bando, M. (2025). Optimal Low-Thrust Transfers Between Relative Planar and Spatial Quasi-Satellite Orbits in the Earth–Moon System. Aerospace, 12(6), Article 524. https://doi.org/10.3390/aerospace12060524

This paper investigates the design of optimal low-thrust transfers between relative planar and spatial quasi-satellite orbits (QSOs) in the Earth–Moon system under the Circular Restricted Three-Body Problem (CR3BP). A key contribution is the adaptati... Read More about Optimal Low-Thrust Transfers Between Relative Planar and Spatial Quasi-Satellite Orbits in the Earth–Moon System.

Planetary sunshade for solar geoengineering: Preliminary design of a precursor system and mission (2025)
Journal Article
Coco, M., Matonti, C. L., Cappelletti, C., Chesley, B., Fuglesang, C., Governale, G., Pushparaj, N., Romano, M., Tibert, G., & Wilk, L. (2025). Planetary sunshade for solar geoengineering: Preliminary design of a precursor system and mission. Acta Astronautica, https://doi.org/10.1016/j.actaastro.2025.05.031

The increasing urgency of climate change mitigation necessitates innovative solutions beyond terrestrial efforts. Space-based solar geoengineering - particularly a Planetary Sunshade System (PSS) positioned near the photo-gravitational equilibrium po... Read More about Planetary sunshade for solar geoengineering: Preliminary design of a precursor system and mission.

Use of the Earth-Moon Lagrange Points for Improving Lunar Navigation Performance (2025)
Presentation / Conference Contribution
Cormier, L., Pushparaj, N., Blunt, P., & Cappelletti, C. (2025, January). Use of the Earth-Moon Lagrange Points for Improving Lunar Navigation Performance. Presented at 7ᵗʰ Winter Satellite Workshop with Remote Sensing Days and Space Science Workshop, Espoo Dipoli, Finland

Real-Time Contrail Monitoring and Mitigation Using CubeSat Constellations (2024)
Journal Article
Pushparaj, N., Cormier, L., Cappelletti, C., & Portapas, V. (2024). Real-Time Contrail Monitoring and Mitigation Using CubeSat Constellations. Atmosphere, 15(12), Article 1543. https://doi.org/10.3390/atmos15121543

Contrails, or condensation trails, left by aircraft, significantly contribute to global warming by trapping heat in the Earth’s atmosphere. Despite their critical role in climate dynamics, the environmental impact of contrails remains underexplored.... Read More about Real-Time Contrail Monitoring and Mitigation Using CubeSat Constellations.

Preliminary Design of a GNSS Interference Mapping CubeSat Mission: JamSail (2024)
Journal Article
Cormier, L., Yousif, T., Thompson, S., Arcia Gil, A., Pushparaj, N., Blunt, P., & Cappelletti, C. (2024). Preliminary Design of a GNSS Interference Mapping CubeSat Mission: JamSail. Aerospace, 11(11), Article 901. https://doi.org/10.3390/aerospace11110901

The JamSail mission is an educational CubeSat aiming to design, develop, and demonstrate two new technologies on a small satellite, tentatively scheduled for launch no earlier than 2026. When launched, JamSail will demonstrate the functionality of tw... Read More about Preliminary Design of a GNSS Interference Mapping CubeSat Mission: JamSail.

JamSail: A CubeSat Demonstration Mission for GNSS Interference Mapping and a Refractive Solar Sail (2024)
Presentation / Conference Contribution
Cormier, L., Yousif, T., Thompson, S., & Arcia, A. (2024, October). JamSail: A CubeSat Demonstration Mission for GNSS Interference Mapping and a Refractive Solar Sail. Presented at 52nd IAF Student Conference: Held at the 75th International Astronautical Congress (IAC 2024), Milan, Italy

The JamSail mission is an educational CubeSat aiming to design, develop, and demonstrate two new technologies on a small satellite, tentatively scheduled for launch NET 2025. When launched, JamSail will demonstrate the functionality of two new payloa... Read More about JamSail: A CubeSat Demonstration Mission for GNSS Interference Mapping and a Refractive Solar Sail.

Optimization of MMX relative quasi-satellite transfer trajectories using primer vector theory (2024)
Journal Article
Pushparaj, N., Baresi, N., & Kawakatsu, Y. (2024). Optimization of MMX relative quasi-satellite transfer trajectories using primer vector theory. Acta Astronautica, 225, 390-401. https://doi.org/10.1016/j.actaastro.2024.09.031

Quasi-satellite orbits (QSO) are stable retrograde parking orbits around Phobos that are currently being considered for JAXA’s upcoming robotic sample return mission Maritan Moons Exploration (MMX). During the proximity operations o... Read More about Optimization of MMX relative quasi-satellite transfer trajectories using primer vector theory.

Breaking the Cycle: Novel Capture Mechanisms for Active Space Debris Removal (2023)
Presentation / Conference Contribution
Taggart, A., Harris, J., Pushparaj, N., & Cappelletti, C. (2023, October). Breaking the Cycle: Novel Capture Mechanisms for Active Space Debris Removal. Presented at 74th International Astronautical Congress. Symposium A6. 21st IAA SYMPOSIUM ON SPACE DEBRIS, Baku, Azerbaijan

Since the launch of Sputnik 1 in 1957, over 6000 rockets and more than 11,300 satellites have been launched into space, resulting in a high number of artificial space debris in orbit around Earth. Of this debris, there are over one million objects be... Read More about Breaking the Cycle: Novel Capture Mechanisms for Active Space Debris Removal.

Frequent Deep-Space Access Strategy for Venus Aeronomic Exploration Mission using Earth-Synchronous Orbits (2023)
Presentation / Conference Contribution
Ito, D., Pushparaj, N., & Kawakatsu, Y. (2023, October). Frequent Deep-Space Access Strategy for Venus Aeronomic Exploration Mission using Earth-Synchronous Orbits. Presented at 74th International Astronautical Congress. Symposium B4. 30th IAA SYMPOSIUM ON SMALL SATELLITE MISSIONS, Baku, Azerbaijan

Geostationary transfer orbits (GTO) are earth-centric orbits widely used for kick-stage operations of satellites for deep space exploration missions. A rideshare spacecraft parked or deployed in GTOs usually requires minimal transfer cost compared to... Read More about Frequent Deep-Space Access Strategy for Venus Aeronomic Exploration Mission using Earth-Synchronous Orbits.

Quasi-solar Synchronous Orbit around the Moon based on Spatial Distant Retrograde Orbits (2023)
Presentation / Conference Contribution
Peng, L., Liang, Y., Pushparaj, N., & Shi, P. (2023, October). Quasi-solar Synchronous Orbit around the Moon based on Spatial Distant Retrograde Orbits. Presented at 74th International Astronautical Congress. Symposium A5. 26th IAA SYMPOSIUM ON HUMAN EXPLORATION OF THE SOLAR SYSTEM, Baku, Azerbaijan

The last several decades have witnessed the rapid development of lunar exploration, promoting researches on various types of lunar orbits including Distant Retrograde Orbits (abbr. DRO) that are feasible for orbiting tasks due to their stability. Man... Read More about Quasi-solar Synchronous Orbit around the Moon based on Spatial Distant Retrograde Orbits.

Optimal Transfer Trajectories between Relative Quasi-Satellite Orbits (2023)
Presentation / Conference Contribution
Pushparaj, N., Hiraiwa, N., & Bando, M. (2023, October). Optimal Transfer Trajectories between Relative Quasi-Satellite Orbits. Presented at 74th International Astronautical Congress, Baku, Azerbaijan

In recent years, there has been growing interest in space exploration, particularly in exploring the Martian system. The moons Phobos and Deimos of Mars may hold the key to understanding how the Solar system formed. As a result, space agencies like N... Read More about Optimal Transfer Trajectories between Relative Quasi-Satellite Orbits.

Design and analysis of stable differentiator-predictor (2020)
Journal Article
Wang, X. (2022). Design and analysis of stable differentiator-predictor. International Journal of Control, 95(5), 1228-1250. https://doi.org/10.1080/00207179.2020.1847326

In this paper, the phase lead by the general phase-lead compensator is analysed, and a criterion of its parameters selection is proposed. In order to get the relatively large time-interval prediction for stochastic signal, two types of differentiator... Read More about Design and analysis of stable differentiator-predictor.