Explanipedia

Shape models and spin states of Jupiter Trojans: Testing the streaming instability formation scenario Open

J. Hanuš, David Vokrouhlický, David Nesvorný, Josef Ďurech, Robert D. Stephens , et al. · 2023

The leading theory for the origin of Jupiter Trojans (JTs) assumes that JTs were captured to their orbits near the Lagrangian points of Jupiter during the early reconfiguration of the giant planets. The natural source region for the majori…

Shape models and spin states of Jupiter Trojans Open

J. Hanuš, David Vokrouhlický, David Nesvorný, Josef Ďurech, Robert D. Stephens , et al. · 2023

The leading theory for the origin of Jupiter Trojans (JTs) assumes that JTs were captured to their orbits near the Lagrangian points of Jupiter during the early reconfiguration of the giant planets. The natural source region for the majori…

Shape Models of Lucy Targets (3548) Eurybates and (21900) Orus from Disk-integrated Photometry Open

S. Mottola, S. Hellmich, M. W. Buie, A. M. Zangari, Robert D. Stephens , et al. · 2023

We use our new light curves, along with historical data, to determine the rotation state, photometric properties, and convex shape models of the targets of the Lucy mission (3548) Eurybates and (21900) Orus. We determine a retrograde spin …

Spin vectors in the Koronis family: IV. Completing the sample of its largest members after 35 years of study Open

Stephen M. Slivan, Matthew W. Hosek, Max Kurzner, Alyssa Sokol, Sarah Maynard , et al. · 2022

Advancing Health Equity Knowledge, Attitudes, and Beliefs Within a National Health Nonprofit Organization Open

Lucy Rabinowitz, Petry Ubri, Robert D. Stephens, Sarah Davis Redman, Tracy L. Wiedt , et al. · 2022

Objective: This study presents survey results assessing the impact of the American Cancer Society (ACS) health equity (HE) training on staff knowledge, attitudes, and beliefs about HE and social determinants of health (SDOH). Design: This …

Shape models and spin states of Jupiter Trojans: Testing the streaming instability formation Open

J. Hanuš, David Vokrouhlický, David Nesvorný, Josef Ďurech, Robert D. Stephens , et al. · 2022

<div class="ui-layout-east ui-layout-pane ui-layout-pane-east ui-layout-pane-hover ui-layout-pane-east-hover ui-layout-pane-open-hover ui-layout-pane-east-open-hover"> <div class="ng-scope"> <div class=&q…

LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2018 SEPTEBER - 2019 SEPTEMBER. Open

Brian D. Warner, Robert D. Stephens · 2020

CCD photometric observations of three Hilda asteroids were made at the Center for Solar System Studies (CS3) in 2019 September. Analysis of the 2019 data for 4495 Dassanowsky, a reported binary (Warner and Stephens, 2019), found three peri…

NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 JULY-SEPTEMBER. Open

Brian D. Warner, Robert D. Stephens · 2020

Lightcurves for 28 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies (CS3) from 2019 July to September were analyzed for rotation period, peak-to-peak amplitude, and signs of satellites or tumbling. 2059 Baboquiva…

MAIN-BELT ASTEROIDS OBSERVED FROM CS3: 2019 JULY TO SEPTEMBER. Open

Robert D. Stephens, Brian D. Warner · 2020

CCD photometric observations of 25 main-belt asteroids were obtained at the Center for Solar System Studies (CS3) from 2019 July to September.

MAIN-BELT ASTEROIDS OBSERVED FROM CS3: 2019 APRIL TO JUNE. Open

Robert D. Stephens, Brian D. Warner · 2019

CCD photometric observations of 19 main-belt asteroids were obtained at the Center for Solar System Studies (CS3) from 2019 April to June.

LIGHTCURVE ANALYSIS OF L5 TROJAN ASTERIODS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 ARPIL TO JUNE. Open

Robert D. Stephens, Brian D. Warner · 2019

Lightcurves for five L₅ Jovian Trojan asteroids were obtained at the Center for Solar System Studies (CS3) from 2019 April to June.

LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 APRIL-JUNE. Open

Brian D. Warner, Robert D. Stephens · 2019

CCD photometric observations of seven Hilda asteroids were made at the Center for Solar System Studies (CS3) from 2019 April and June. Analysis of data for 1269 Rollandia and 3843 OISCA based on 2019 data led to review of our earlier resul…

NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 MARCH-JULY. Open

Brian D. Warner, Robert D. Stephens · 2019

Lightcurves for 38 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies (CS3) from 2019 March-July were analyzed for rotation period, peak-to-peak amplitude, and signs of satellites or tumbling.

LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 JANUARY-MARCH. Open

Brian D. Warner, Robert D. Stephens · 2019

CCD photometric observations of three Hilda asteroids were made at the Center for Solar System Studies (CS3) from 2019 January-March. For 1038 Tuckia, the period solution was ambiguous at either P = 18.020 h, amplitude 0.22 mag or <…

NEAR-EARTH ASTEROID (152931) 2000 EA107: A PROBABLE BINARY. Open

Robert D. Stephens, Brian D. Warner · 2019

CCD photometric observations of the near-Earth asteroid (152931) 2000 EA107 were made in 2019 March and April at the Center for Solar System Studies (CS3). Analysis of the data found that the asteroid is likely a binary. The primary period…

LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2018 SEPTEMBER-DECEMBER. Open

Brian D. Warner, Robert D. Stephens · 2019

Lightcurves for four Hilda asteroids were obtained at the Center for Solar System Studies (CS3) from 2018 September-November: 3514 Hooke, 3557 Sokolsky, 4495 Dassanowksy, and 10331 Peterbluhm. 4495 Dassanowksy appears to be a binary astero…

MAIN-BELT ASTEROIDS OBSERVED FROM CS3: 2018 OCTOBER - DECEMBER. Open

Robert D. Stephens, Brian D. Warner · 2019

CCD photometric observations of 18 main-belt asteroids were obtained from the Center for Solar System Studies from 2018 October to December. A pole solution was found for 4910 Kawasato of (λ, β, P_SID) = (355°, 35°, 4.66271 h). (…

ANOTHER TRIO OF POSSIBLE VERY WIDE BINARY ASTEROIDS. Open

Brian D. Warner, Robert D. Stephens · 2019

Lightcurve analysis of the near-Earth asteroids (442742) 2012 WP3, (523604) 2004 QB17, and 2018 RL indicate that they are potential members of a relatively rare class of "very wide binary asteroids." These objects feature a primary rotatio…

NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2018 SEPTEMBER-DECEMBER. Open

Brian D. Warner, Robert D. Stephens · 2019

Lightcurves for 32 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies (CS3) from 2018 September-December were analyzed for rotation period and signs of satellites or tumbling.

NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2018 JULY-SEPTEMBER. Open

Brian D. Warner, Robert D. Stephens · 2019

Lightcurves for 45 Near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies (CS3) from 2018 July-September were analyzed for rotation period and signs of satellites or tumbling. NEA 13553 Massakikoyama appears to be in n…

7002 BRONSHTEN: A NEW MARS-CROSSING BINARY. Open

Brian D. Warner, Robert D. Stephens · 2019

CCD photometric observations of the Mars-crosser asteroid 7002 Bronshten show it to be a binary system. The primary period is P₁ = 2.67025 ± 0.00007 h. The orbital period of the satellite, which is also its rotation perio…

LIGHTCURVE ANALYSIS OF L4 TROJAN ASTERIODS AT THE CENTER FOR SOLAR SYSTEM STUDIES - 2018 JULY TO SEPTEMBER. Open

Robert D. Stephens, Brian D. Warner · 2019

Lightcurves for five Jovian Trojan asteroids were obtained at the Center for Solar System Studies (CS3) from 2018 July to September.

MAIN-BELT ASTEROIDS OBSERVED FROM CS3: 2019 JANUARY - MARCH. Open

Robert D. Stephens, Brian D. Warner · 2019

CCD photometric observations of 10 main-belt asteroids were obtained from the Center for Solar System Studies from 2019 January to March. In light of recent period analysis, images of 2120 Tyumenia obtained in 2004 were re-examined. The re…

LIGHTCURVE ANALYSIS OF L5 TROJAN ASTERIODS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 JANUARY TO MARCH. Open

Robert D. Stephens, Brian D. Warner · 2019

Lightcurves for four L₅ Jovian Trojan asteroids were obtained at the Center for Solar System Studies (CS3) from 2019 January to March. The suspected binary Trojan, 2207 Antenor was observed again and a single attenuation event w…

NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2019 JANUARY-APRIL. Open

Brian D. Warner, Robert D. Stephens · 2019

Lightcurves for 24 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies (CS3) from 2019 January-April were analyzed for rotation period, peak-to-peak amplitude, and signs of satellites or tumbling. Two asteroids, (38…

LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2018 JULY-SEPTEMBER. Open

Brian D. Warner, Robert D. Stephens · 2019

POTENTIAL BINARY AND TUMBLING ASTEROIDS FROM THE CENTER FOR SOLAR SYSTEM STUDIES. Open

Brian D. Warner, Robert D. Stephens · 2019

CCD photometric observations of four main-belt and one near-Earth asteroid were made in 2019. Of these, the Vestoid 2602 Moore and Hungaria (27568) 2000 PT6 were confirmed to be binary asteroids. The Hungaria 3880 Kaiserman is a suspected …

(3200) Phaethon: Bulk density from Yarkovsky drift detection Open

J. Hanuš, David Vokrouhlický, Marco Delbò, Davide Farnocchia, David Polishook , et al. · 2018

Context. The recent close approach of the near-Earth asteroid (3200) Phaethon offered a rare opportunity to obtain high-quality observational data of various types. Aims. We used the newly obtained optical light curves to improve the spin …

LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2016 DECEMBER THRU 2017 APRIL. Open

Brian D. Warner, Robert D. Stephens · 2017

Lightcurves for four Hilda asteroids were obtained at the Center for Solar System Studies (CS3) from 2016 December thru 2017 April.

LIGHTCURVE ANALYSIS OF TROJAN ASTERIODS AT THE CENTER FOR SOLAR SYSTEM STUDIES 2017 JANUARY - MARCH. Open

Robert D. Stephens, Daniel R. Coley · 2017

Lightcurves for 18 Jovian Trojan asteroids were obtained at the Center for Solar System Studies (CS3) from 2017 January to March.

Robert D. Stephens YOU? Author Swipe