Results 61 to 70 of about 5,495,810 (173)

An overview of space situational awareness

, 2013
Space Situational Awareness (SSA) means different things to different people, but in its broadest view refers to a knowledge of our near-space environment. This includes both a natural and man-made component.
Vo, Ba-Ngu, Kennewell, J.
core   +1 more source

A Self‐Supervised Framework for Space Object Behaviour Characterisation

Expert Systems, Volume 43, Issue 10, October 2026.
ABSTRACT Foundation Models, which leverage large neural networks pre‐trained on unlabelled data before fine‐tuning for specific tasks, are increasingly being applied to specialised domains. Recent examples include ClimaX for climate and Clay for satellite Earth observation, but a Foundation Model for Space Object Behavioural Analysis (SOBA) has not yet
Ian Groves, Andrew Campbell, James Fernandes, Diego Ramírez Rodríguez, Paul Murray, Massimiliano Vasile, Victoria Nockles   +6 more
wiley   +1 more source

Revisiting the Social Security Claiming Puzzle: Behavioral Preferences as Rational Explanations for Early Claiming

FINANCIAL PLANNING REVIEW, Volume 9, Issue 3, September 2026.
ABSTRACT Nearly one‐fourth of workers claiming Social Security do so at age 62, while only one in ten wait until age 70, even though financial analyses often favor delay, a pattern that has long puzzled economists. Using a dynamic lifecycle model with Epstein–Zin recursive utility, we examine whether early claiming can be a reasonable choice once ...
Derek T. Tharp
wiley   +1 more source

Building a local Space Situational Awareness (SSA) architecture using hosted payloads [PDF]

, 2013
From a military standpoint, space-based capabilities and the need to know what is happening in space, or Space Situational Awareness (SSA), have become invaluable. Current SSA capabilities are expensive and are limited in scope.
Zaman, Farakh B.
core   +1 more source

The European Ionosonde Service: nowcasting and forecasting ionospheric conditions over Europe for the ESA Space Situational Awareness services

Journal of Space Weather and Space Climate, 2015
The Earth’s ionosphere is a magnetoionic medium imbedded in a background neutral atmosphere, exhibiting very interesting refractive properties, including anisotropy, dispersion, and dissipation.
Belehaki Anna, Tsagouri Ioanna, Kutiev Ivan, Marinov Pencho, Zolesi Bruno, Pietrella Marco, Themelis Kostas, Elias Panagiotis, Tziotziou Kostas   +8 more
doaj   +1 more source

Digital Transformation in Work Integration Social Enterprises: Leadership Strategies and the Role of Internal Stakeholders

Corporate Social Responsibility and Environmental Management, Volume 33, Issue 5, Page 7310-7328, September 2026.
ABSTRACT Digital transformation is increasingly reshaping how social enterprises organize work, engage stakeholders, and pursue social value. While prior research has examined digitalization in hybrid organizations, limited attention has been paid to how responsibility for inclusive digital transformation is enacted internally.
Riccardo Maiolini, Federica D’Alessandro, Paolo Landoni   +2 more
wiley   +1 more source

Orbital Debris Mitigation in Support of Space Situational Awareness and Space Traffic Management [PDF]

, 2019
Outline: The orbital debris (OD) problem: The environment; Long-term population growth; Risk to space missions. OD mitigation, space situational awareness (SSA), andvspace traffic management (STM).
Liou, J.-C.
core  

TriM-SOD: A Multi-Modal, Multi-Task, and Multi-Scale Spacecraft Optical Dataset

Space: Science & Technology
The acquisition and application of spacecraft optical data is an important part of space-based situational awareness (SSA). Spacecraft optical data processing techniques can assist in tasks such as on-orbit operation, space debris removal, and deep space
Tianyu Zhu, Hesong Li, Ying Fu
doaj   +1 more source

Performance and Detectability Analysis of Resident Space Objects Using an S-Band Bi-Static Radar with the Sardinia Radio Telescope as Receiver

Remote Sensing
The continuous growth of the population of Resident Space Objects (RSOs) poses increasing challenges for Space Situational Awareness (SSA), particularly in terms of detection capability and collision risk mitigation.
Luca Schirru
doaj   +1 more source

Determination and Progress in Establishing the Robotic Observatory of Space Objects (ROSO)

Machines
The gradual increase in man-made objects in the space surrounding our planet is becoming increasingly evident. This significant rise in terrestrial materials is reflected in a greater presence of artificial satellites, space debris and waste from space ...
Francisco Espartero, Javier Cubas, Santiago Pindado   +2 more
doaj   +1 more source