[ hide orbit diagram ]
| Orbit Diagram
|
| Note:
Make sure you have Java enabled on your browser to see the applet.
This applet is provided as a 3D orbit visualization tool.
The applet was implemented using 2-body methods,
and hence should not be used for determining accurate long-term trajectories
(over several years or decades) or planetary encounter circumstances.
For accurate long-term ephemerides, please instead use our Horizons system. |
|
|
|
Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.
Orbit Viewer applet originally written and kindly provided by
Osamu Ajiki (AstroArts),
and further modified by
Ron Baalke (JPL).
|
|
|
|
|
Orbital Elements at Epoch 2456160.5 (2012-Aug-21.0) TDB
Reference: JPL K105/3 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .8481483471781557 | 3.2932e-08 | |
| a | 2.214300262268714 | 1.1487e-07 | AU |
| q | .3362451546693477 | 6.7089e-08 | AU |
| i | 11.77725270150035 | 1.7353e-05 | deg |
| node | 334.572155927956 | 3.0215e-05 | deg |
| peri | 186.541332132217 | 3.2914e-05 | deg |
| M | 223.0750096628539 | 4.7287e-05 | deg |
| tp | 2456618.255332586452
(2013-Nov-21.75533259) | 0.00019357 | JED |
| period | 1203.519673986179
3.30 | 9.365e-05
2.564e-07 | d
yr |
| n | .2991226548109875 | 2.3276e-08 | deg/d |
| Q | 4.092355369868081 | 2.1229e-07 | AU |
|
Additional Model Parameters
| Parameter | Value | Uncertainty (1-sigma) |
| A1 [EST] | 1.219283759529275E-10 | 1.469E-11 |
| A2 [EST] | -6.270735209977006E-12 | 9.198E-14 |
| A3 [EST] | -1.203398841555619E-9 | 1.448E-10 |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| comet total magnitude |
M1 |
12.8 |
mag |
2. |
K105/3 |
from 537 observations, assumed slope, autocmod 2.5b |
| comet total magnitude slope |
K1 |
12. |
|
n/a |
K105/3 |
autocmod 2.5b |
| diameter |
diameter |
4.8 |
km |
n/a |
Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264 |
|
| rotation period |
rot_per |
11.083 |
h |
n/a |
Asteroid Lightcurve DataBase (Rev. 2013-May-01) |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Fernandez, Y.R.; Lowry, S.C.; Weissman, P.R.; Mueller, B.E.A.; et al. (2005) Icarus 175, 194-214.]
[Lowry, S.C.; Weissman, P.R. (2007) Icarus 188, 212-223.] |
| geometric albedo |
albedo |
0.046 |
|
0.023 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
|
|
| 2P/Encke Discovered 1786-Jan-17 by Mechain, Pierre F. A. |
| Reference: comet.dis | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
Perihelion
Year (est.) | New-Style
Desig | Roman
Numeral | Year/
Letter | | 1994.1 | | 1994 V | |
| 1990.8 | | 1990 XXI | |
| 1987.5 | | 1987 XIII | |
| 1984.2 | | 1984 VI | |
| 1980.9 | | 1980 XI | |
| 1977.6 | | 1977 XI | |
| 1974.3 | | 1974 V | |
| 1971.1 | | 1971 II | 1970l |
| 1967.8 | | 1967 XIII | 1967h |
| 1964.5 | | 1964 IV | 1963h |
| 1961.2 | | 1961 I | 1960i |
| 1957.9 | | 1957 VIII | 1957c |
| 1954.6 | | 1954 IX | 1953f |
| 1951.3 | | 1951 III | 1950e |
| 1948.0 | | 1947 XI | 1947i |
| 1941.4 | | 1941 V | 1941b |
| 1938.1 | | 1937 VI | 1937h |
| 1934.8 | | 1934 III | 1934a |
| 1931.5 | | 1931 II | 1931a |
| 1928.2 | | 1928 II | 1927h |
| 1924.9 | | 1924 III | 1924b |
| 1921.6 | | 1921 IV | 1921d |
| 1918.3 | | 1918 I | 1917c |
| 1915.0 | | 1914 VI | 1914d |
| 1911.7 | | 1911 III | 1911d |
| 1908.4 | | 1908 I | 1908b |
| 1905.2 | | 1905 I | 1904b |
| 1901.9 | | 1901 II | 1901b |
| 1898.6 | | 1898 III | 1898d |
| 1895.3 | | 1895 I | 1894d |
| 1892.0 | | 1891 III | 1891c |
| 1888.7 | | 1888 II | 1888b |
| 1885.4 | | 1885 I | 1884d |
| 1882.1 | | 1881 VII | 1881d |
| 1878.8 | | 1878 II | 1878c |
| 1875.5 | | 1875 II | 1875a |
| 1872.2 | | 1871 V | 1871c |
| 1868.9 | | 1868 III | |
| 1865.6 | | 1865 II | |
| 1862.3 | | 1862 I | |
| 1859.0 | | 1858 VIII | |
| 1855.7 | | 1855 III | |
| 1852.4 | | 1852 I | |
| 1849.1 | | 1848 II | |
| 1845.8 | | 1845 IV | |
| 1842.5 | | 1842 I | |
| 1839.2 | | 1838 | |
| 1836.0 | | 1835 II | |
| 1832.7 | | 1832 I | |
| 1829.4 | | 1829 | |
| 1826.1 | | 1825 III | |
| 1822.8 | 2P/1822 L1 | 1822 II | |
| 1819.5 | 2P/1818 W1 | 1819 I | |
| 1806.3 | 2P/1805 U1 | 1805 | |
| 1796.4 | 2P/1795 V1 | 1795 | |
| 1786.5 | 2P/1786 B1 | 1786 I | |
|
|
|
