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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
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Orbital Elements at Epoch 2457571.5 (2016-Jul-02.0) TDB
Reference: JPL K224/3 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .5096004756079923 | 2.1248e-06 | |
a | 3.145487612436505 | 1.3586e-05 | au |
q | 1.542545629119814 | 7.2405e-07 | au |
i | 10.47398290113916 | 1.2993e-05 | deg |
node | 68.74923086597421 | 7.3399e-05 | deg |
peri | 179.2052246990899 | 9.9148e-05 | deg |
M | 354.4205460683203 | 3.0379e-05 | deg |
tp | 2457603.080542846323 (2016-Aug-02.58054285) | 9.999e-05 | TDB |
period | 2037.653785458113 5.58 | 0.013202 3.615e-05 | d yr |
n | .1766737816645645 | 1.1447e-06 | deg/d |
Q | 4.748429595753197 | 2.051e-05 | au |
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Additional Model Parameters
Parameter | Value | Uncertainty (1-sigma) |
A1 [EST] | -2.237321987172662E-9 | 2.599E-10 |
A2 [EST] | -3.865064132892253E-10 | 2.643E-10 |
A3 [EST] | -3.067218900990234E-10 | 1.636E-10 |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
comet total magnitude |
M1 |
12.4 |
|
0.8 |
K224/3 |
2 parameter fit from 428 observations, autocmod 2.9a |
comet total magnitude slope |
K1 |
10. |
|
n/a |
K224/3 |
autocmod 2.9a |
comet nuclear magnitude |
M2 |
14.6 |
|
0.6 |
K224/3 |
from 1018 observations, autocmod 2.9a |
comet nuclear magnitude slope |
K2 |
5. |
|
n/a |
K224/3 |
autocmod 2.9a |
comet nuclear phase coefficient |
PC |
0.03 |
|
n/a |
K224/3 |
autocmod 2.9a |
diameter |
diameter |
6.0 |
km |
0.2 |
A'Hearn, M.F. et al. (2005) Science 310:258-264 |
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extent |
extent |
7.6x4.9 |
km |
n/a |
A'Hearn, M.F. et al. (2005) Science 310:258-264 |
preliminary shape model |
rotation period |
rot_per |
40.7 |
h |
n/a |
A'Hearn, M.F. et al. (2005) Science 310:258-264 |
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geometric albedo |
albedo |
0.05 |
|
0.02 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
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9P/Tempel 1 Discovered 1867-Apr-03 by Tempel, William at Marseilles, France |
Reference: comet.dis | Last Updated: 2003-08-29 |
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[ show close-approach data ]
Alternate Designations
Perihelion Year (est.) | New-Style Desig | Roman Numeral | Year/ Letter | 1994.3 | | 1994 XIX | 1993c |
1988.7 | | 1989 I | 1987e1 |
1983.1 | | 1983 XI | 1982j |
1977.5 | | 1978 II | 1977i |
1972.0 | 9P/1972 A1 | 1972 V | 1972a |
1966.4 | 9P/1967 L1 | 1966 VII | |
1877.1 | | 1879 III | 1879b |
1871.5 | 9P/1873 G1 | 1873 I | 1873a |
1866.0 | 9P/1867 G1 | 1867 II | |
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