Dr NISHANTH PUSHPARAJ's Outputs (16)

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.

Theoretical Framework of Orbital Transfers between Libration Point Orbits for the Avoidance of Eclipses and Solar Radiation (2024)
Presentation / Conference Contribution
Shimazaki, T., Pushparaj, N., & Kawakatsu, Y. (2024, November). Theoretical Framework of Orbital Transfers between Libration Point Orbits for the Avoidance of Eclipses and Solar Radiation. Presented at 21st Reinventing Space Conference, London, United Kingdom

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.

Roles, effects, and ramifications of in-person interactions in a digital team (2024)
Presentation / Conference Contribution
Bonfitto, F., Fayon, G., Gallucci, A., Iorga, M.-B., Nigro, F., Pushparaj, N., Alqattan, Y., Sadhukhan, D., Rümmler, L., & Soulard, N. (2024, October). Roles, effects, and ramifications of in-person interactions in a digital team. Paper presented at 75th International Astronautical Congress, Milan, Italy

The democratisation of Agile and SAFe development approach in the IT sector following the social web deployment in the second half of the 2000's led in parallel to the emergence of the digital transformation concept. In order to ease the collaboratio... Read More about Roles, effects, and ramifications of in-person interactions in a digital team.

Teleoperated Astropharmaceutical Payload for Long-Duration Space Missions: Project VITA! (2024)
Presentation / Conference Contribution
Izcan, S., Tsinidis, M., Pushparaj, N., Williams, P., & Cappelletti, C. (2024, October). Teleoperated Astropharmaceutical Payload for Long-Duration Space Missions: Project VITA!. Presented at 75th International Astronautical Congress, Milan, Italy

The VITA (Visualizing In-space Tx-Tl Astropharmaceuticals) mission is a teleoperated Astropharmaceutical cube-payload that will launch a biological experiment to the ICE Cubes Facility (ICF) on board the International Space Station (ISS) as a selecte... Read More about Teleoperated Astropharmaceutical Payload for Long-Duration Space Missions: Project VITA!.

Alternative Orbits for Improving Lunar Navigation Services (2024)
Presentation / Conference Contribution
Cormier, L., Arcia, A., Pushparaj, N., Blunt, P., & Cappelletti, C. (2024, October). Alternative Orbits for Improving Lunar Navigation Services. Presented at 75th International Astronautical Congress, Milan, Italy

With the renewed interest in missions to the Moon, key technologies are required to ensure the success of these missions. In particular, the demand for reliable, accurate positioning and navigation services will be fundamental for the successful outc... Read More about Alternative Orbits for Improving Lunar Navigation Services.

CubeSats for Contrail Monitoring and Environmental Impact Reduction (2024)
Presentation / Conference Contribution
Pushparaj, N., Cormier, L., Cappelletti, C., & Portapas, V. (2024, October). CubeSats for Contrail Monitoring and Environmental Impact Reduction. Presented at 75th International Astronautical Congress, Milan, Italy

Contrails, or condensation trails, are cloud-like trails left by aircraft under certain atmospheric conditions. They are known to exacerbate global warming by trapping heat in the Earth’s atmosphere. Despite the significant role of contrails in clima... Read More about CubeSats for Contrail Monitoring and Environmental Impact Reduction.

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.

Reflective and transmissive solar sails: Dynamics, flight regimes and applications (2024)
Journal Article
Thompson, S. M., Cappelletti, C., & Pushparaj, N. (2024). Reflective and transmissive solar sails: Dynamics, flight regimes and applications. Acta Astronautica, 220, 478-494. https://doi.org/10.1016/j.actaastro.2024.04.032

Refractive and diffractive solar sails have been cited to yield benefits in both performance and utility over reflective sails, but their range of viable flight regimes and future applications have not been fully explored. In this paper, a flight mod... Read More about Reflective and transmissive solar sails: Dynamics, flight regimes and applications.

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

Quasi-satellite orbits (QSOs) are stable retrograde orbits in the restricted three-body problem that have gained attention as a viable candidate for future deep-space missions towards remote planetary satellites. Several mission design proposal uses... Read More about Optimal Transfer Trajectories between Relative Quasi-Satellite Orbits.

Stabilization of Spacecraft in Spatial Periodic Orbits using Linear Quadratic Regulator (LQR) (2023)
Presentation / Conference Contribution
Pushparaj, N., Hayashi, Y., & Bando, M. (2023, June). Stabilization of Spacecraft in Spatial Periodic Orbits using Linear Quadratic Regulator (LQR). Paper presented at 34th International Symposium on Space Technology and Science & 12th Nano-Satellite Symposium, Kurume, Fukuoka, Japan

Mission design for exploring minor celestial bodies and planetary satellites presents significant technical challenges, particularly in highly perturbed dynamical environments. The weak and complex gravitational fields of small bodies, along with per... Read More about Stabilization of Spacecraft in Spatial Periodic Orbits using Linear Quadratic Regulator (LQR).

Do Look Up: A young generation's perspective on Planetary Defense (2022)
Presentation / Conference Contribution
Gloder, A., Cader, S., Austen, E., Choudhary, M., Garcia-Bonilla, J., Vizireanu, A., Hameed, H., Rojas Ramirez, M. E., Pushparaj, N., & Sarli, B. (2022, September). Do Look Up: A young generation's perspective on Planetary Defense. Presented at 73rd International Astronautical Congress (IAC), Paris, France

One aspect of human behaviour that recent events have shown is people's lack of response to seemingly distant or unlikely situations. Nonetheless, this action, or absence of action, results in inadequate planning and policies to deal with high-impact... Read More about Do Look Up: A young generation's perspective on Planetary Defense.

Expanding Interplanetary Transfer Opportunities from Geostationary Transfer Orbits via Earth Synchronous Orbits (2022)
Journal Article
Ito, D., Pushparaj, N., & Kawakatsu, Y. (2022). Expanding Interplanetary Transfer Opportunities from Geostationary Transfer Orbits via Earth Synchronous Orbits. Journal of Spacecraft and Rockets, 60(1), 79-94. https://doi.org/10.2514/1.A35270

Geostationary transfer orbits (GTOs) are geocentric orbits widely considered for kick-stage operations of satellites for deep space missions. A piggyback spacecraft departing from GTOs requires a low transfer cost. The type of GTO and launch timings... Read More about Expanding Interplanetary Transfer Opportunities from Geostationary Transfer Orbits via Earth Synchronous Orbits.