Asteroids with Satellites Database--Johnston's Archive
(1862)
Apollo
compiled by Wm. Robert Johnston
last updated
16 November 2014
--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:
NEA, Apollo
(PHA)
orbital data, primary (osculating elements)
[JPL]
:
semimajor axis a: |
1.47004342241 AU
|
orbital period P: |
1.7823592519 yr (= 651.01901205 d)
|
eccentricity e: |
0.559959378
|
perihelion distance q: |
0.646878822 AU
|
aphelion distance Q: |
2.2932080224 AU
|
inclination i: |
6.3531104°
|
argument of perihelion ω: |
285.832667°
|
ascending node Ω: |
35.745397°
|
mean anomaly M: |
279.1889451°
|
perihelion passage TP: |
2009 Apr 12.1375921
|
Epoch: |
2014 Dec 09
|
data arc: |
1930-2014
(1236 obs.)
|
Earth MOID: |
0.0256879 AU
|
Jupiter Tisserand invariant TJ: |
4.415
|
orbital data, secondary:
semimajor axis as: |
3.75
± 0.25 km
[F14a]
|
separation/primary radius as/rp: | 2.6 [*D] |
separation/Hill radius as/rH: | 0.047 [*D] |
orbital period Ps: |
1.14
± 0.01
d [F14a]
|
eccentricity es: |
?
|
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
absolute mag. H: |
16.25
[MPC]
|
slope parameter G: |
0.09 [JPL]
|
effective diameter dE: |
1.55
± 0.07
km [*D]
|
geometric albedo: |
0.2
± 0.02
[R13a]
|
color index U-B: |
0.481
[JPL]
|
color index B-V: |
0.819
[JPL]
|
taxonomic type: |
Q (SMASSII) [JPL]
Q (Tholen) [JPL]
|
mass m: |
3.35x1012
± 5.5x1011
kg [F14a]
|
density ρ: |
2.05
± 0.35
g/cm3[F14a]
|
Hill radius rH: |
80 km [*D]
|
other data, primary:
diameter dp: |
1.55
± 0.07
km [R13a]
|
dimensions : | 1.8 x 1.5 x 1.3km [F14a] |
axial ratios a/b, b/c: | 1.2, 1.15 [F14a] |
volume : | 1.6[F14a] |
rotation period RPp: |
3.065
± 0
h [K07a]
|
amplitude in mag., rotational ΔM: |
?
|
pole direction Β, λ: |
71 ± 11°
,
-72 ± 11°
[F14a]
|
other data, secondary:
diameter ds: |
0.08
± 0.06
km [O05a]
|
dimensions : | 0.19 x ? x ?km [F14a] |
diameter ratio ds/dp: |
0.052
± 0.039
[*D]
|
component mag. difference ΔM: |
6.4
[*D]
|
rotation period RPs: |
?
|
|
|
--
(1862) Apollo
--discovery and notes:
Primary discovered
1932 Apr 24
from
Heidelberg, Germany
by
K. Reinmuth.
Alternate designation(s):
1932 HA
.
Linked to prediscovery observations from 1930 Dec 13.
Permanent number assigned 1974.
Named 1936 for the mythological Greek god [MPC3758].
Companion discovered
2005 Oct 29
by S. J. Ostro, L. A. M. Benner, J. D. Giorgini, M. C. Nolan, A. A. Hine, E. S. Howell, J. L. Margot, C. Magri, and M. K. Shepard
using
radar
observations from Arecibo Observatory, Puerto Rico.
Announced
2005 Nov 04 [O05a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Busch, M., Jacobson, S. A., Benner, L., Brozovic, M., Howell, E. S., Margot, J., Naidu, S., Shepard, M. K., & Taylor, P. A. 2013, AGU Fall Meeting Abstracts A Lower Size Limit for Near-Earth Asteroid Satellites
- Kaasalainen, Mikko & Nortunen, Hari 2013, Astronomy and Astrophysics Compact YORP formulation and stability analysis
- Rozitis, B., Duddy, S. R., Green, S. F., & Lowry, S. C. 2013, Astronomy and Astrophysics A thermophysical analysis of the (1862) Apollo Yarkovsky and YORP effects
- Farnocchia, Davide, Milani, A., Chesley, S. R., Vokrouhlický, D., Spoto, F., Bernardi, F., & Valsecchi, G. B. 2012, AAS/Division for Planetary Sciences Meeting Abstracts Near Earth Asteroids with Measurable Yarkovsky Effect
- Taylor, Patrick A. 2012, AAS/Division of Dynamical Astronomy Meeting Collapsing Binary Asteroids With YORP And BYORP
- Durech, Josef, Vokrouhlicky, D., Polishook, D., Krugly, Y. N., Gaftonyuk, N. M., Stephens, R. D., Warner, B. D., Kaasalainen, M., Gross, J., Cooney, W., & Terrel, D. 2009, AAS/Division for Planetary Sciences Meeting Abstracts #41 Detection of the YORP Effect in Asteroid (3103) Eger
- Binzel, Richard P., Merouane, S., DeMeo, F. E., Birlan, M., Vernazza, P., Morbidelli, A., Thomas, C. A., Rivkin, A. S., Bus, S. J., & Tokunaga, A. T. 2009, AAS/Division for Planetary Sciences Meeting Abstracts #41 Planetary Encounters as the Cause of Fresh Asteroid Surfaces
- Taylor, Patrick A. 2009, AAS/Division of Dynamical Astronomy Meeting #40 Preferential Production of Contact Binary Asteroids with Components of Similar Mass via Angular Momentum Loss
- Durech, J., Vokrouhlický, D., Kaasalainen, M., Higgins, D., Krugly, Yu. N., Gaftonyuk, N. M., Shevchenko, V. G., Chiorny, V. G., Hamanowa, H., Hamanowa, H., Reddy, V., & Dyvig, R. R. 2008, Astronomy and Astrophysics Detection of the YORP effect in asteroid (1620) Geographos
- Durech, J., Vokrouhlický, D., Kaasalainen, M., Weissman, P., Lowry, S. C., Beshore, E., Higgins, D., Krugly, Y. N., Shevchenko, V. G., Gaftonyuk, N. M., Choi, Y.-J., Kowalski, R. A., Larson, S., Warner, B. D., Marshalkina, A. L., Ibrahimov, M. A., Molotov, I. E., Michałowski, T., & Kitazato, K. 2008, Astronomy and Astrophysics New photometric observations of asteroids (1862) Apollo and (25143) Itokawa - an analysis of YORP effect
- Nesvorny, David 2008, AAS/Division of Dynamical Astronomy Meeting #39 Analytic Theory of the YORP Effect for Near-Spherical Objects
- Higgins, David 2008, Minor Planet Bulletin Asteroid Lightcurve Analysis at Hunters Hill Observatory and Collaborating Stations: April 2007 - June 2007
- Mainzer, Amanda, Vokrouhlicky, David, Bottke, Bill, Nesvorny, David, Walker, Russ, Chesley, Steve, Wright, Ned, & Eisenhardt, Peter 2007, Spitzer Proposal Using IRAC to Measure the Yarkovsky Effect for 1862 Apollo
- Nesvorný, David & Vokrouhlický, David 2007, The Astronomical Journal Analytic Theory of the YORP Effect for Near-Spherical Objects
- Margot, Jean-Luc 2007, Bulletin of the American Astronomical Society A Productive YORP Year
- Kaasalainen, Mikko, Durech, J., Warner, B. D., Krugly, Y., Gaftonyuk, N., & Higgins, D. 2007, Bulletin of the American Astronomical Society Detecting YORP Effect with Photometry: (1862) Apollo
- Muinonen, Karri, Torppa, Johanna, Virtanen, Jenni, Näränen, Jyri, Niemel, Jarkko, Granvik, Mikael, Laakso, Teemu, Parviainen, Hannu, Aksnes, Kaare, Dai, Zhang, Ingvar Lagerkvist, Claes, Rickman, Hans, Karlsson, Ola, Hahn, Gerhard, Michelsen, René, Grav, Tommy, Pravec, Petr, & Jørgensen, Uffe Grâe 2007, IAU Symposium Spins, shapes, and orbits for near-Earth objects by Nordic NEON
- Kaasalainen, Mikko, Ďurech, Josef, Warner, Brian D., Krugly, Yurij N., & Gaftonyuk, Ninel M. 2007, Nature Acceleration of the rotation of asteroid 1862 Apollo by radiation torques
- Muinonen, K., Torppa, J., Virtanen, J., Laakso, T., Niemelae, J., Naeraenen, J., Granvik, M., Parviainen, H., Aksnes, K., Dai, Z., Lagerkvist, C.-I., Rickman, H., Karlsson, O., Hahn, G., Michelsen, R., Grav, T., & Joergensen, U. 2006, IAU Symposium Physical and Dynamical Properties of Near-Earth Objects from Nordic NEON
- Pilcher, Frederick 2007, Minor Planet Bulletin Minor Planets at Unusually Favorable Elongations in 2007
- Yeomans, Donald K. 2006, Bulletin of the American Astronomical Society The Tunguska Event and the History of Near-Earth Objects
- Warner, Brian D. 2006, Minor Planet Bulletin Analysis of 13 asteroid lightcurves obtained at the Palmer Divide Observatory
- Benner, L. A. M. 2006, Society for Astronomical Sciences Annual Symposium Arecibo and Goldstone Radar Imaging of Near-Earth and Main-Belt Asteroids in 2005
- Ostro, S. J., Benner, L. A. M., Giorgini, J. D., Nolan, M. C., Hine, A. A., Howell, E. S., Margot, J. L., Magri, C., & Shepard, M. K. 2005, International Astronomical Union Circular (1862) Apollo
- Pilcher, Frederick 2005, Minor Planet Bulletin Minor planets at unusually favorable elongations in 2005
- Ostro, Steven J., Rosema, Keith D., Campbell, Donald B., & Shapiro, Irwin I. 2002, Icarus NOTE: Radar Observations of Asteroid 1862 Apollo
- Whiteley, Robert Jennings, Jr. 2001, Ph.D. Thesis A compositional and dynamical survey of the near-Earth asteroids
- Magri, C., Ostro, S. J., Benner, L. A. M., & Beeney, B. R. 2000, Bulletin of the American Astronomical Society Radar Constraints on the Compositions of 45 Asteroids
- 1997, European Southern Observatory Press Release Discovery of a Satellite around a Near-Earth Asteroid
- Binzel, R. P., Bus, S. J., & Burbine, T. H. 1997, Bulletin of the American Astronomical Society Compositional Distribution of Near-Earth Asteroids: New Results for 80 Objects
- Binzel, R. P., Bus, S. J., Burbine, T. H., & Sunshine, J. M. 1996, Bulletin of the American Astronomical Society A Spectroscopic Survey of Near-Earth Asteroids: Evidence for an S-asteroid Ordinary Chondrite Link
- Binzel, R. P. 1995, Meteoritics Forging New Links in the Asteroid-Meteorite Connection
- Sitarski, G. 1995, Acta Astronomica Determination of Masses of Mercury and Venus from Observations of Five Minor Planets
- Binzel, R. P. & Bus, S. J. 1994, International Astronomical Union Circular 1993 VW
- Binzel, R. P. & Xu, S. 1992, International Astronomical Union Circular 1991 VK, 1991 VL, 1991 WA and 1991 XB
- Yeomans, D. K. 1991, The Astronomical Journal A comet among the near-earth asteroids?
- Britt, D. T., Tholen, D. J., Bell, J. F., & Pieters, C. M. 1991, Resources of Near-Earth Space The spectral relationships between NEA and the meteorites: an overview using principal components analysis
- Hahn, G. 1988, Ph.D. Thesis Physical and dynamical studies of planet-crossing asteroids.
- Harris, A. W., Young, J. W., Goguen, J., Hammel, H. B., Hahn, G., Tedesco, E. F., & Tholen, D. J. 1987, Icarus Photoelectric lightcurves of the asteroid 1862 Apollo
- Hahn, Gerhard & Lagerkvist, Claes-Ingvar 1987, Celestial Mechanics Orbital evolution studies of planet-crossing asteroids.
- Olsson-Steel, Duncan 1987, European Regional Astronomy Meeting of the IAU, Volume 2 Meteoroid streams associated with Apollo asteroids - Evidence from the Adelaide radar orbit surveys
- Tholen, D. J. 1984, Ph.D. Thesis Asteroid taxonomy from cluster analysis of Photometry
- McFadden, L. A., Gaffey, M. J., & McCord, T. B. 1983, Lunar and Planetary Science Conference Spectral Reflectance of Near-Earth Asteroids: Implications for Composition, Origin and Evolution
- Hahn, G. 1983, Uppsala Astronomical Observatory Reports UBVRI and JHK photometry of the near-earth asteroid 1862 Apollo.
- Ziolkowski, K. 1983, Asteroids, Comets, and Meteors Do nongravitational effects exist in the motion of asteroids?
- Hahn, G. 1983, Asteroids, Comets, and Meteors UBVRI and JHK photometry of the near-earth asteroid 1862 Apollo
- Lebofsky, L. A., Veeder, G. J., Rieke, G. H., Lebofsky, M. T., Matson, D. L., Kowal, C., Wynn-Williams, C. G., & Becklin, E. E. 1981, Icarus The albedo and diameter of 1862 Apollo
- Ostro, S. J. 1981, Cornell Univ. Final Report Radar investigation of asteroids
- Ostro, S. J. 1981, NASA STI/Recon Technical Report N Radar investigation of asteroids
- McCrosky, R. E. 1981, Smithsonian Astrophysical Observatory Report Photometric and CCD direct image observation of comet Encke
- Klemola, A. R. 1981, The Astronomical Journal Astrometric observations of planets, minor planets, and satellites - 1976-1980
- 1980, The Astronomer News notes
- Marsden, B. G. 1980, International Astronomical Union Circular (1862) Apollo
- Bus, E. P., Comello, G., & Feijth, H. 1980, Zenit Planetoïde 1862 Apollo dicht langs de Aarde.
- Levin, B. J., Simonenko, A. N., & Anders, Edward 1976, Icarus Farmington Meteorite: A Fragment of an Apollo Asteroid?
- Marsden, B. G. 1974, International Astronomical Union Circular 1932 HA (Apollo).
- Shao, C. Y., McCrosky, R. E., & Schwartz, G. 1974, International Astronomical Union Circular 1932 HA (Apollo).
- Shao, C. Y. & Marsden, B. G. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- 1973, Kometnyj Tsirkulyar Asteroid Apollo, 1932 HA.
- Shao, C. Y., McCrosky, R. E., & Schwartz, G. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- Marsden, B. G. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- Marsden, B. G. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- Roemer, E. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- McCrosky, R. E., Shao, C. Y., & Marsden, B. G. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- McCrosky, R. E. & Shao, C. Y. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- Marsden, B. G. 1973, International Astronomical Union Circular 1932 HA (Apollo).
- 1971, International Astronomical Union Circular 1932 HA (Apollo).
- Whipple, Fred Lawrence, Cunningham, L. E., & Shapley, Harlow 1937, Annals of Harvard College Observatory A definitive orbit of Apollo (Reinmuth object, 1932 HA)
- Whipple, F. L. & Cunningham, L. E. 1936, Publications of the American Astronomical Society Definite orbit of Apollo (1932 HA)
- Stracke, G. 1933, Astronomische Nachrichten Über die Bahn des Reinmuthschen Planeten 1932 HA
- 1933, Popular Astronomy The Reinmuth Asteroid 1932 HA
- Belot, Emile 1933, L'Astronomie Un Asteroide Remarquable (1932 HA).
- Stracke, G. 1932, Astronomische Nachrichten Über die Bahn des Planeten 1932 HA
- 1932, Popular Astronomy General Notes
- van Biesbroeck, G. 1932, Popular Astronomy Asteroids 1932 EA<SUB>1</SUB> (Delporte) and 1932 HA (Reinmuth)
©
2005-2007, 2014
by Wm. Robert Johnston.
Last modified
16 November 2014.
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