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Speretta, S. (author), Uludag, M.S. (author), Menicucci, A. (author), Ferrario, Ivan (author)The last years saw the diffusion of nano, pico and femto satellite missions launched by multiple entities thanks to the launch cost reduction and the electronics miniaturization. Such missions usually present limited capabilities in terms of precise orbit determination and extremely small radar and optical cross-sections. Often these missions...conference paper 2023
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Callejon Cantero, M. (author), Pastor-Rodriguez, A. (author), Siemes, C. (author)The uncertainty on Thermospheric Mass Density (TMD), as derived from atmospheric models, can reach extremely high values. This effect is noteworthy in Low Earth Orbit (LEO), where atmospheric drag is the main perturbing force, as well as the most uncertain. LEO harbours almost 18,000 space objects at the end of 2021, around 60% of the total...conference paper 2023
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Langbroek, M. (author), Bassa, Cees (author), Molczan, Ted (author)Meaningful SSA work on earth-orbiting satellites can be done on a shoe-string budget, with modest, off the shelf equipment. This has been shown by an informal group of self-funded Independent Space Observers (“ISO’s”) organized around the Seesat-L mailing list. Literally from their backyards, they track some 200 “classified” objects – objects...conference paper 2023
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Giordano, A. (author), Cervone, A. (author)Interplanetary CubeSat missions are currently becoming more popular, with a significant number of recently planned missions. The context of this paper is a Mars mission, starting from a parking orbit around Earth: the adoption of a chemical propulsion system for the Earth-Mars transfer phase is investigated, considering the recent...journal article 2023
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van Berkel, S.L. (author), Alonso Del Pino, M. (author), Jung-Kubiak, Cecile (author), Chattopadhyay, Goutam (author)The development of a low focal number and low-mass lens antenna is presented that enables terahertz spectroscopy applications on ultracompact platforms. The antenna operates efficiently over a 20% fractional bandwidth, from 450 to 550 GHz, with a gain of 50 dBi at 500 GHz. The antenna consists of a hyperbolic silicon lens that is placed in a...journal article 2023
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How Cheah, Kean (author), Ganani, Chaggai (author), Lemmer, Kristina (author), Cervone, A. (author)This chapter covers the development of cold gas microthruster, which is widely regarded as the simplest way of generating thrust in space, for nanosatellites. A brief background and principles of operation were given, followed by the introduction of nozzle theory that could be used in the preliminary estimation of microthruster performance...book chapter 2022
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Cervone, A. (author), Cordeiro Guerrieri, D. (author), de Athayde Costa e Silva, M. (author), Leverone, F.K. (author)Electrothermal propulsion can be seen as an intermediate concept between electrical and chemical propulsion. Propellant heating typically happens by means of a resistance (resistojet) or an electrical discharge (arcjet). For the extremely miniaturized applications that will be discussed in this chapter, resistojets are by far the most...book chapter 2022
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Bouwmeester, J. (author)This thesis provides an innovative architecture for CubeSats and PocketQubes to improve their performance and reliability. CubeSats and PocketQubes are standard satellite form factors composed of one or more cubic units of 10 cm and 5 cm respectively. It is found that the current modular subsystem approach and the electrical interfaces are not...doctoral thesis 2021
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Nosseir, A.E.S. (author), Cervone, A. (author), Pasini, A (author)Innovation in small-satellite modern space missions and applications require propulsion capabilities to enable active operations in orbit, such as formation flying, rendezvous operations, orbital altitude & inclination changes, and orbital transfers,– generally, operations demanding high-thrust impulsive maneuvers. In addition, Green...conference paper 2020
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de Athayde Costa e Silva, M. (author), Cordeiro Guerrieri, D. (author), Cervone, A. (author), Gill, E.K.A. (author)CubeSats have been extensively used in the past decade as scientific tools, technology demonstrators and for education. Recently, PocketQubes have emerged as an interesting and even smaller alternative to CubeSats. However, both satellite types often lack some key capabilities, such as micropropulsion, in order to further extend the range of...review 2018
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Bouwmeester, J. (author), van der Linden, S. P. (author), Povalac, A. (author), Gill, E.K.A. (author)Developers experience issues with the compatibility, connector size and robustness of electrical interface standards for CubeSats and PocketQubes. There is a need for a lean and robust electrical interface standard for these classes of satellites. The proposed interface standard comprises a linear data bus which is used for housekeeping data,...journal article 2018
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Topputo, Francesco (author), Cervone, A. (author), Sundaramoorthy, P.P. (author), Speretta, S. (author), Mestry, S.S. (author), Noomen, R. (author)The Lunar Meteoroid Impact Observer (LUMIO) is a mission designed to observe, quantify, and characterize the meteoroid impacts by detecting their flashes on the lunar farside. Earth-based lunar observations are restricted by weather, geometric, and illumination conditions, while a lunar orbiter can improve the detection rate of lunar meteoroid...conference paper 2018
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Bouwmeester, J. (author), Gill, E.K.A. (author), Speretta, S. (author), Uludag, M.S. (author)The dominant architectural approach in CubeSats and PocketQubes is the use of modular physical units, each hosting (part of the) components of classical (virtual) subsystems. Many of these small satellites, however, also host subsystems or experiments with slightly alternative approach, e.g. with cellularization of components or the integration...journal article 2018
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Oi, Daniel K.L. (author), Ling, Alex (author), Vallone, Giuseppe (author), Villoresi, Paolo (author), Greenland, Steve (author), Kerr, Emma (author), Macdonald, Malcolm (author), Weinfurter, Harald (author), Kuiper, J.M. (author), Charbon-Iwasaki-Charbon, E. (author), Ursin, Rupert (author)Quantum communication is a prime space technology application and offers near-term possibilities for long-distance quantum key distribution (QKD) and experimental tests of quantum entanglement. However, there exists considerable developmental risks and subsequent costs and time required to raise the technological readiness level of...journal article 2017
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Speretta, S. (author), Sundaramoorthy, P.P. (author), Gill, E.K.A. (author)This paper aims at analysing the current capabilities of the NORAD Space Surveillance network, in particular focusing on very small objects in LEO. Spacecraft miniaturization has been pushing the limits and capabilities of small satellites so much that spacecraft as small as 5x5x5 cm have already been launched and even smaller ones are currently...conference paper 2017
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Bouwmeester, J. (author), Gill, E.K.A. (author), Speretta, S. (author), Uludag, M.S. (author)The dominant architectural approach in CubeSats and PocketQubes is the use of modular physical units, each hosting (part of the) components of classical (virtual) subsystems. Many of these small satellites, however, also host<br/>subsystems or experiments with slightly alternative approach, e.g. with cellularization of components or the...conference paper 2017
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Bouwmeester, J. (author), Langer, M (author), Gill, E.K.A. (author)This paper provides results and conclusions on a survey on the implementation and reliability aspects of CubeSat bus interfaces, with an emphasis on the data bus and power distribution. It provides recommendations for a future CubeSat bus standard. The survey is based on a literature study and a questionnaire representing 60 launched CubeSats...journal article 2016
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Speretta, S. (author), Pérez Soriano, T. (author), Bouwmeester, J. (author), Carvajal Godínez, J. (author), Menicucci, A. (author), Watts, T.G. (author), Sundaramoorthy, P.P. (author), Guo, J. (author), Gill, E.K.A. (author)<b>In the last two decades, CubeSats have changed the perception of satellite missions aided by standardization and usage of commercial-off-the-shelf components. CubeSats have also proven the feasibility of low cost and short development time space missions. The PocketQube with a form factor of 5x5x5 cm has been...conference paper 2016
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Gill, E.K.A. (author), Sundaramoorthy, P. (author), Bouwmeester, J. (author), Zandbergen, B. (author), Reinhard, R. (author)QB50 is a mission establishing an international network of 50 nano-satellites for multi-point, in-situ measurements in the lower thermosphere and re-entry research. As part of the QB50 mission, the Delft University of Technology intends to contribute two nano-satellites both being equipped with a highly miniaturized propulsion system in addition...conference paper 2010