Monitoring the orbital decay of the Chinese space station Tiangong-1 from the loss of control until the re-entry into the Earth's atmosphere

Pardini, Carmen; Anselmo, Luciano

doi:10.1016/j.jsse.2019.10.004

Cited by 9 publications

(2 citation statements)

References 5 publications

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“…This configuration creates a drag area, with respect to the velocity vector, of about 48 mq. The attitude parameters found by the proposed method are in line with the community consensus regarding the presumable attitude of the station in that period of time [41][42][43].…”

Section: Synthetic Datamentioning

confidence: 60%

LEO Object’s Light-Curve Acquisition System and Their Inversion for Attitude Reconstruction

et al. 2020

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In recent years, the increase in space activities has brought the space debris issue to the top of the list of all space agencies. The fact of there being uncontrolled objects is a problem both for the operational satellites in orbit (avoiding collisions) and for the safety of people on the ground (re-entry objects). Optical systems provide valuable assistance in identifying and monitoring such objects. The Sapienza Space System and Space Surveillance (S5Lab) has been working in this field for years, being able to take advantage of a network of telescopes spread over different continents. This article is focused on the re-entry phase of the object; indeed, the knowledge of the state of the object, in terms of position, velocity, and attitude during the descent, is crucial in order to predict as accurately as possible the impact point on the ground. A procedure to retrieve the light curves of orbiting objects by means of optical data will be shown and a method to obtain the attitude determination from their inversion based on a stochastic optimization (genetic algorithm) will be proposed.

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Section: Synthetic Datamentioning

confidence: 60%

LEO Object’s Light-Curve Acquisition System and Their Inversion for Attitude Reconstruction

et al. 2020

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“…For example, since 2004, the United States has launched the Project Constellation, Artemis and so on to develop spacecraft such as Orion, as shown in Figure 6. The main structure of manned lunar exploration aircraft, whether manned spacecraft or lunar module, is the pressurized capsule structure, which requires higher requirements [14,15]. These requirements include (1) Lower structural weight [16] The launch cost of manned lunar exploration is several times or even dozens of times higher than that of near-earth orbit, which requires lower weight and higher efficiency of spacecraft structures.…”

Section: Structural Requirements Of Manned Deep Space Exploration Pre...mentioning

confidence: 99%

Progress in Lightweight Design Methods for Large-Size Panel Structures in Manned Pressurized Capsules

Zhou

Han

et al. 2023

Applied Sciences

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The pressurized capsule structure provides the pressure environment for astronauts or payloads in space, which is thus considered as the most crucial structural component for manned spacecraft. The manned deep space exploration mission (MDSEM) brings new challenges to the pressurized capsule structure: extremely low structural weight, long service life, reusability and adaptability to the harsh deep space environment. The conventional welded panel pressurized capsule structure (WPPCS) is not able to meet these new requirements. To address the above challenges, this paper comprehensively expounds why the current WPPCS cannot meet the requirements of MDSEMs based on the analysis of the vibration environment and structural characteristics of the pressurized capsule structure. Furthermore, a new type of integrated panel pressurized capsule structure (IPPCS) is proposed, showing the lightweight advantage compared with WPPCS. Finally, the technical details and research results of the strength criterion, design method, material upgrading and structural integrity manufacturing process of the IPPCS are fully introduced. The conclusions drawn in this paper will provide useful and meaningful references for the future development of large-size, lightweight pressurized capsule structures.

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Procedure and methodologies for managing the risk of space object reentry

Kim

Choi

et al. 2021

Advances in Space Research

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Monitoring the orbital decay of the Chinese space station Tiangong-1 from the loss of control until the re-entry into the Earth's atmosphere

Cited by 9 publications

References 5 publications

LEO Object’s Light-Curve Acquisition System and Their Inversion for Attitude Reconstruction

LEO Object’s Light-Curve Acquisition System and Their Inversion for Attitude Reconstruction

Progress in Lightweight Design Methods for Large-Size Panel Structures in Manned Pressurized Capsules

Procedure and methodologies for managing the risk of space object reentry

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