Results 1 to 10 of about 11,532 (137)

Comparative Analysis of Resident Space Object (RSO) Detection Methods [PDF]

Sensors, 2023
In recent years, there has been a significant increase in satellite launches, resulting in a proliferation of satellites in our near-Earth space environment. This surge has led to a multitude of resident space objects (RSOs).
Vithurshan Suthakar, Aiden Alexander Sanvido, Randa Qashoa, Regina S. K. Lee   +3 more
doaj   +6 more sources

A Dual-Purpose Camera for Attitude Determination and Resident Space Object Detection on a Stratospheric Balloon [PDF]

Sensors, 2023
Space systems play an integral role in every facet of our daily lives, including national security, communications, and resource management. Therefore, it is critical to protect our valuable assets in space and build resiliency in the space environment ...
Gabriel Chianelli, Perushan Kunalakantha, Marissa Myhre, Regina S. K. Lee   +3 more
doaj   +2 more sources

Simultaneous Capture and Detumble of a Resident Space Object by a Free-Flying Spacecraft-Manipulator System [PDF]

Frontiers in Robotics and AI, 2019
A maneuver to capture and detumble an orbiting space object using a chaser spacecraft equipped with a robotic manipulator is presented. In the proposed maneuver, the capture and detumble objectives are integrated into a unified set of terminal ...
Josep Virgili-Llop, Marcello Romano
doaj   +2 more sources

An analysis of close approaches and probability of collisions between LEO resident space objects and mega constellations

Geo-spatial Information Science, 2022
With the undergoing and planned implementations of mega constellations of thousands of Low Earth Orbiting (LEO) satellites, space will become even more congested for satellite operations.
Yan Zhang, Bin Li, Hongkang Liu, Jizhang Sang   +3 more
doaj   +3 more sources

RSONAR: Data-Driven Evaluation of Dual-Use Star Tracker for Stratospheric Space Situational Awareness (SSA) [PDF]

Sensors
The growing density of Earth-orbiting objects demands improved Space Situational Awareness (SSA) to mitigate collision risks and sustain space operations. This study demonstrates a dual-purpose star tracker (ST) for SSA using data from the Resident Space
Vithurshan Suthakar, Ian Porto, Marissa Myhre, Aiden Alexander Sanvido, Ryan Clark, Regina S. K. Lee   +5 more
doaj   +2 more sources

Multiagent First-Person Perspective Analysis for Leadership Assessment in Pediatric Emergency Simulations: A Feasibility Study [PDF]

Critical Care Explorations
BACKGROUND:. Conventional leadership assessments provide structured ratings but offer limited observer-independent metrics. Because leadership and teamwork are interdependent, capturing team dynamics requires multiagent, time- and space-synchronized ...
Hisataka Nozawa, MD, Ayumi Kunikata, MD, Yuki Sakai, MS, Liangyang Ouyang, MS, Ryosuke Furuta, PhD, Yoichi Sato, PhD, Hikoro Matsui, PhD   +6 more
doaj   +2 more sources

Feature Detection of Non-Cooperative and Rotating Space Objects through Bayesian Optimization [PDF]

Sensors
In this paper, we propose a Bayesian Optimization (BO)-based strategy using the Gaussian Process (GP) for feature detection of a known but non-cooperative space object by a chaser with a monocular camera and a single-beam LIDAR in a close-proximity ...
Rabiul Hasan Kabir, Xiaoli Bai
doaj   +2 more sources

RSOnet: An Image-Processing Framework for a Dual-Purpose Star Tracker as an Opportunistic Space Surveillance Sensor

Sensors, 2022
A catalogue of over 22,000 objects in Earth’s orbit is currently maintained, and that number is expected to double within the next decade. Novel data collection regimes are needed to scale our ability to detect, track, classify and characterize resident ...
Siddharth Dave, Ryan Clark, Regina S. K. Lee   +2 more
doaj   +1 more source

Classification of Low Earth Orbit (LEO) Resident Space Objects’ (RSO) Light Curves Using a Support Vector Machine (SVM) and Long Short-Term Memory (LSTM)

Sensors, 2023
Light curves are plots of brightness measured over time. In the field of Space Situational Awareness (SSA), light curves of Resident Space Objects (RSOs) can be utilized to infer information about an RSO such as the type of object, its attitude, and its ...
Randa Qashoa, Regina Lee
doaj   +1 more source

Stratospheric Night Sky Imaging Payload for Space Situational Awareness (SSA)

Sensors, 2023
Space situational awareness (SSA) refers to collecting, analyzing, and keeping track of detailed knowledge of resident space objects (RSOs) in the space environment.
Perushan Kunalakantha, Andrea Vallecillo Baires, Siddharth Dave, Ryan Clark, Gabriel Chianelli, Regina S. K. Lee   +5 more
doaj   +1 more source