Asteroids with Satellites Database--Johnston's Archive
(617)
Patroclus
and Menoetius
compiled by Wm. Robert Johnston
last updated
9 October 2021
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:
Jupiter trojan asteroid, L5
orbital data, primary (osculating elements)
[JPL]
:
semimajor axis a: |
5.21255213 AU
|
orbital period P: |
11.90101 yr (= 4346.84389 d)
|
eccentricity e: |
0.13954003
|
perihelion distance q: |
4.48519247 AU
|
aphelion distance Q: |
5.93991181 AU
|
inclination i: |
22.05788892°
|
argument of perihelion ω: |
307.9633711°
|
ascending node Ω: |
44.3502185°
|
mean anomaly M: |
269.745164°
|
perihelion passage TP: |
2024 Jun 24.78800
|
Epoch: |
2021 Jul 01
|
data arc: |
2013-2021
(2141 obs.)
|
Earth MOID: |
3.53199 AU
|
Jupiter Tisserand invariant TJ: |
2.835
|
orbital data, secondary:
binary dynamical type: | O [P07f] |
semimajor axis as: |
695
± 10 km
[B20g]
|
separation/primary radius as/rp: | 11.0 [*D] |
separation/Hill radius as/rH: | 0.017 [*D] |
orbital period Ps: |
4.28276
± 0.000005
d [B20g]
|
eccentricity es: |
0.02
± 0.02
[M06b]
|
normalized ang. mom. αL: |
2.05
[P07f]
|
|
other data, system (combined):
absolute mag. H: |
8.23
[MPC]
|
slope parameter G: |
(0.15) [*A]
|
effective diameter dE: |
168.8
± 2.6
km [B20g]
|
geometric albedo: |
0.045
± 0.009
[M10b]
|
color index U-B: |
0.215
[T95a]
|
color index B-V: |
0.677
[T95a]
|
taxonomic type: |
P (Tholen) [JPL]
|
mass m: |
1.36x1018
± 1.1x1017
kg [M06b]
|
density ρ: |
0.81
± 0.16
g/cm3[B20g]
|
Hill radius rH: |
41000 km [*D]
|
other data, primary:
diameter dp: |
126.6
± 2
km [*D]
|
dimensions : | 130.8 x 126.2 x 122.8km [B20g] |
axial ratios a/b, b/c: | 1.036, 1.028 [*D] |
rotation period RPp: |
102.78624
± 0.00015
h [B20g]
|
amplitude in mag., rotational ΔM: |
0.07
[W21b]
|
pole direction Β, λ: |
?
,
?
|
other data, secondary:
diameter ds: |
111.8
± 1.7
km [*D]
|
dimensions : | 117.1 x 110.8 x 107.8km [B20g] |
axial ratios a/b, b/c: | 1.057;1.028 [*D] |
diameter ratio ds/dp: |
0.884
± 0.034
[B20g]
|
component mag. difference ΔM: |
0.27
± 0.084
[*D]
|
rotation period RPs: |
?
|
|
|
--
(617) Patroclus and Menoetius
--discovery and notes:
Primary discovered
1906 Oct 17
from
Heidelberg, Germany
by
A. Kopff.
Alternate designation(s):
1906 VY,
1941 XC, 1962 NB.
Permanent number assigned 1907 Nov .
Named 1907 for the Greek mythological character [AN04187].
Companion discovered
2001 Sep 22
by W. J. Merline, L. M. Close, N. Siegler, D. Potter, C. R. Chapman, C. Dumas, F. Menard, and D. C. Slater
using
adaptive optics telescope
observations from Gemini North Telescope, Mauna Kea, Hawaii, USA.
Announced
2001 Oct 29 [M01a].
Provisional designation S/2001 (617) 1.
Permanent designation I Menoetius, assigned 2006 Feb 02; named for the Greek mythological character [G06b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Marchis, F., Durech, J., Castillo-Rogez, J., Vachier, F., Cuk, M., Berthier, J., Wong, M. H., Kalas, P., Duchene, G., van Dam, M. A., Hamanowa, H., & Viikinkoski, M. 2014, The Astrophysical Journal The Puzzling Mutual Orbit of the Binary Trojan Asteroid (624) Hektor
- Marchis, F., Ruffio, J., Vachier, F., & Berthier, J. 2013, AGU Fall Meeting Abstracts Component-resolved near-infrared spectra of multiple asteroid systems
- Noll, Keith S., Ryan, E. L., Grundy, W. M., & Benecchi, S. D. 2013, AAS/Division for Planetary Sciences Meeting Abstracts Ultra-Slow Rotating Outer Main Belt and Trojan Asteroids: Search for Binaries
- Marchis, F., Vachier, F., Durech, J., Berthier, J., & Hanus, J. 2012, AGU Fall Meeting Abstracts Mutual Orbits, Size, Density, and Interior of Visualized Multiple Asteroids
- Oey, Julian 2012, Minor Planet Bulletin Period Determination of 617 Patroclus
- Nesvorný, David, Youdin, Andrew N., & Richardson, Derek C. 2010, The Astronomical Journal Formation of Kuiper Belt Binaries by Gravitational Collapse
- Mueller, Michael, Marchis, Franck, Emery, Joshua P., Harris, Alan W., Mottola, Stefano, Hestroffer, Daniel, Berthier, Jérome, & di Martino, Mario 2010, Icarus Eclipsing binary Trojan asteroid Patroclus: Thermal inertia from Spitzer observations
- Yang, Bin 2009, Ph.D. Thesis Water in primitive solar system bodies
- Grundy, W. M., Stansberry, J. A., Noll, K. S., Stephens, D. C., Trilling, D. E., Kern, S. D., Spencer, J. R., Cruikshank, D. P., & Levison, H. F. 2007, Icarus The orbit, mass, size, albedo, and density of (65489) Ceto/Phorcys: A tidally-evolved binary Centaur
- Merline, William J., Tamblyn, P. M., Dumas, C., Close, L. M., Chapman, C. R., Durda, D. D., Levison, H. F., Hamilton, D. P., Nesvorny, D., Storrs, A., Enke, B., & Menard, F. 2007, Bulletin of the American Astronomical Society The Search for Trojan Binaries
- Berthier, Jerome, Marchis, F., Descamps, P., Assafin, M., Bouley, S., Colas, F., Dubos, G., Emery, J. P., De Cat, P., Farrell, J. A., Leroy, A., Pauwels, T., Pollock, J. T., Reddy, V., Sada, P. V., Vingerhoets, P., Vachier, F., Vieira-Martins, R., Wong, M. H., Reichart, D. E., Ivarsen, K. M., Crain, J. A., LaCluyze, A. P., & Nysewander, M. C. 2007, Bulletin of the American Astronomical Society An Observing Campaign of the Mutual Events Within (617) Patroclus-Menoetius Binary Trojan System
- Mueller, Michael, Marchis, F., Emery, J. P., Berthier, J., Hestroffer, D., Harris, A., Descamps, P., Vachier, F., & Mottola, S. 2007, Bulletin of the American Astronomical Society Spitzer Observations of Mutual Events in the Binary System (617) Patroclus-Menoetius
- Yang, Bin & Jewitt, David 2007, The Astronomical Journal Spectroscopic Search for Water Ice on Jovian Trojan Asteroids
- Marchis, F., Baek, M., Berthier, J., Descamps, P., Hestroffer, D., Vachier, F., Colas, F., Lecacheux, J., Reddy, V., & Pino, F. 2007, Central Bureau Electronic Telegrams (617) Patroclus
- Hestroffer, Daniel, Tanga, P., Cellino, A., Kaasalainen, M., Torppa, J., Marchis, F., Richardson, D. C., Elankumaran, P., Berthier, J., Colas, F., & Lounis, S. 2006, Bulletin of the American Astronomical Society HST/FGS High Angular Resolution Observations of Binary Asteroids
- Yang, Bin & Jewitt, D. 2006, Bulletin of the American Astronomical Society Spectroscopic Search for Water Ice on Jovian Trojan Asteroids
- Marchis, F., Wong, M. H., Descamps, P., Berthier, J., Hestroffer, D., & Vachier, F. 2006, Central Bureau Electronic Telegrams (617) Patroclus
- Marchis, Franck, Berthier, Jerome, Descamps, Pascal, Emery, Josh, Harris, Alan, Hestroffer, Daniel, Mottola, Stefano, Mueller, Michael, & Vachier, Frederic 2006, Spitzer Proposal Eclipses and occultations on binary Trojan asteroid (617) Patroclus
- Marchis, Franck, Hestroffer, Daniel, Descamps, Pascal, Berthier, Jérôme, Bouchez, Antonin H., Campbell, Randall D., Chin, Jason C. Y., van Dam, Marcos A., Hartman, Scott K., Johansson, Erik M., Lafon, Robert E., Le Mignant, David, de Pater, Imke, Stomski, Paul J., Summers, Doug M., Vachier, Frédéric, Wizinovich, Peter L., & Wong, Michael H. 2006, Nature A low density of 0.8gcm<SUP>-3</SUP> for the Trojan binary asteroid 617Patroclus
- Marchis, F., Berthier, J., Hestroffer, D., Descamps, P., & Merline, W. J. 2006, International Astronomical Union Circular (617) Patroclus
- Marchis, F., Hestroffer, D., Descamps, P., Berthier, J., Bouchez, A. H., Campbell, R. D., Chin, J. C. Y., van Dam, M. A., Hartman, S. K., Johnasson, E. M., Lafon, R. E., Le Mignant, D., de Pater, I., Stomski, P. J., Summers, D. M., Wizinovich, P. L., & Wong, M. H. 2005, Bulletin of the American Astronomical Society Multiplicity in the Jupiter Trojan Population: Low density of 617 Patroclus with Keck LGS AO and Perspective
- Marchis, F., Hestroffer, D., Descamps, P., Berthier, J., Bouchez, A. H., Campbell, R. D., Chin, J. C. Y., van Dam, M. A., Hartman, S. K., Johansson, E. M., Lafon, R. E., Le Mignant, D., de Pater, I., Stomski, P. J., Summers, D. M., Wizinovitch, P. L., & Wong, M. H. 2005, Bulletin of the American Astronomical Society The Orbit of 617 Patroclus Binary Trojan System from Keck LGS AO observations
- Fernández, Yanga R., Sheppard, Scott S., & Jewitt, David C. 2003, The Astronomical Journal The Albedo Distribution of Jovian Trojan Asteroids
- Marchis, F., Descamps, P., Berthier, J., Hestroffer, D., de Pater, I., Conrad, A., Le Mignant, D., Chaffee, F., & Gavel, D. 2003, Bulletin of the American Astronomical Society Searching and Studying Binary Asteroids with AO Systems
- Kaasalainen, M., Torppa, J., & Piironen, J. 2002, Astronomy and Astrophysics Binary structures among large asteroids
- Merline, W. J., Close, L. M., Siegler, N., Potter, D., Chapman, C. R., Dumas, C., Menard, F., Slater, D. C., Baker, A. C., Edmunds, M. G., Mathlin, G., Guyon, O., & Roth, K. 2001, International Astronomical Union Circular S/2001 (617) 1
- Erdi, B. 1981, Celestial Mechanics, vol. 24, Aug. 1981, p. 377-390. The perturbations of the orbital elements of Trojan asteroids
- Smith, D. W., Johnson, P. E., & Shorthill, R. W. 1981, Icarus Spectrophotometry of J8, J9, and four Trojan asteroids from 0.32 to 1.05 microns
- Cruikshank, D. P. 1977, Icarus Radii and albedos of four Trojan asteroids and Jovian satellites 6 and 7
- Drucker, W. 1921, Astronomische Nachrichten Anwendung der Wilkenschen Methode AN 4906 auf den Planeten 617 Patroclus
- Fabry, Louis 1918, Journal des Observateurs Note sur la grandeur de 617 Patrocle
- Pickering, Edward C. 1912, Harvard College Observatory Bulletin Asteroid Patroclus
- Heinrich, W. 1910, Astronomische Nachrichten Oppositionsephemeride des Planeten der Jupitergruppe (617) Patroclus
- Wolf, M. 1909, Astronomische Nachrichten Photographische Aufnahme des Planeten (617) Patroclus
- Heinrich, V. 1909, Astronomische Nachrichten Fortsetzung der Ephemeride des Planeten (617) Patroclus
- Heinrich, Vladimír 1908, Astronomische Nachrichten Oppositionsephemeride des Planeten der Jupitergruppe (617) Patroclus
- Heinrich, V. 1907, Astronomische Nachrichten Ephemeride des Planeten (617) Patroclus
- Heinrich, V. 1907, Astronomische Nachrichten Elemente und Ephemeride des Planeten (617) Patroclus
- Heinrich, V. 1907, Astronomische Nachrichten Elemente des Planeten der Jupitergruppe Patroclus (1906 VY)
- Strümgren, E. 1907, Astronomische Nachrichten Zur Entdeckung eines dritten kleinen Planeten der Jupitergruppe 1906 VY
- Charlier, C. V. L. 1907, Astronomische Nachrichten Über die Bahnen der Planeten (588) [1906 TG], 1906 VY und 1907 XM
- Heinrich, V. 1907, Astronomische Nachrichten Über einen neuen Planeten der Jupitergruppe 1906 VY
©
2001-2014, 2021
by Wm. Robert Johnston.
Last modified
9 October 2021.
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