Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Kepler's First Law of Planetary Motion

Kepler's First Law of Planetary Motion

In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. He formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe.
Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
On the other hand,...

Circular Orbits and Critical Velocity for Satellites

Circular Orbits and Critical Velocity for Satellites

The Moon orbits around the Earth. In turn, the Earth (and other planets) orbit the Sun. The space directly above our atmosphere is filled with artificial satellites in orbit. One can examine the circular orbit, the simplest kind of orbit, to understand the relationship between the speed and the period of planets and satellites with respect to their positions and the bodies that they orbit.
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...

VSEPR Theory and the Basic Shapes

VSEPR Theory and the Basic Shapes

Overview of VSEPR Theory

Pole and System Stability

Pole and System Stability

The transfer function is a fundamental concept representing the ratio of two polynomials. The numerator and denominator encapsulate the system's dynamics. The zeros and poles of this transfer function are critical in determining the system's behavior and stability.
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's...

Molecular Shapes

Molecular Shapes

Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...

Graphs of Polar Equations

Graphs of Polar Equations

The polar coordinate system represents points using a distance from a central point (the pole) and an angle from a reference direction (the polar axis). Unlike rectangular coordinates, polar coordinates are ideal for graphing curves with radial symmetry or periodic behavior.Some general forms of graphs in polar coordinates include the following:Equation of a Circle (Centered at the Pole):A graph where the radius remains constant for all angles traces a circle centered at the pole:Equation of a...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Accuracy and precision of automated kidney stone detection on CT.

Abdominal radiology (New York)·2026

Same author

Objective Sleep Disturbance After Total Hip and Knee Arthroplasty: A Systematic Review of Wearable-Derived Metrics and Targeted Interventions.

Arthroplasty today·2026

Same author

Dual-Layer Spectral CT for in Vivo Thermometry During Thermal Ablation.

Cardiovascular and interventional radiology·2025

Same author

Head-to-Head Pilot Comparison of Photon-Counting Versus Conventional CT: Radiologist Confidence and Visual Conspicuity in Peritoneal Disease.

Journal of computer assisted tomography·2025

Same author

Interventional High Monoenergetic Spectral CT for Percutaneous Thermal Ablation Procedures.

Journal of computer assisted tomography·2025

Same author

Photon counting detector CTA for prostate artery embolization pre-procedure planning and intra-procedural guidance.

CVIR endovascular·2025

Search research articles

Related Experiment Video

Updated: Dec 24, 2025

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

PRELIMINARY POLE AND SHAPE MODELS FOR THREE NEAR-EARTH ASTEROIDS.

Brian D Warner¹, Petr Pravec², Peter Kusnirak²

¹Center for Solar System Studies / MoreData!, 446 Sycamore Ave., Eaton, CO 80615 USA.

The Minor Planet Bulletin

|April 8, 2020

Summary

Researchers developed preliminary pole and shape models for three near-Earth asteroids (NEAs) using observational data collected from 1993 to 2016. This study provides new insights into the physical characteristics of these celestial bodies.

More Related Videos

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

Three-Dimensional Shape Modeling and Analysis of Brain Structures

Three-Dimensional Shape Modeling and Analysis of Brain Structures

Published on: November 14, 2019

Related Experiment Videos

Last Updated: Dec 24, 2025

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

Three-Dimensional Shape Modeling and Analysis of Brain Structures

Three-Dimensional Shape Modeling and Analysis of Brain Structures

Published on: November 14, 2019

Area of Science:

Astronomy and astrophysics
Planetary science

Background:

Near-Earth asteroids (NEAs) pose potential impact risks and are crucial for understanding solar system evolution.
Characterizing NEAs' physical properties, such as shape and rotation, is essential for hazard assessment and mission planning.

Purpose of the Study:

To determine preliminary pole and shape models for three specific near-Earth asteroids: 1863 Antinous, (5836) 1993 MF, and (154244) 2002 KL6.
To contribute to the growing database of physical properties for potentially hazardous asteroids.

Main Methods:

Photometric observations of the selected NEAs were conducted over a period spanning from 1993 to 2016.
Collected observational data were processed to derive rotational parameters and reconstruct three-dimensional shape models.

Main Results:

Preliminary pole and shape models were successfully generated for 1863 Antinous, (5836) 1993 MF, and (154244) 2002 KL6.
The derived models offer initial insights into the physical configurations and rotational states of these NEAs.

Conclusions:

The study successfully established initial physical models for three NEAs, enhancing our understanding of their morphology and dynamics.
These findings serve as a foundation for more detailed future investigations and refined risk assessments of near-Earth objects.