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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 2454506.5 (2008-Feb-10.0) TDB
Reference: JPL K215/12 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .8198476783954503 | 2.3956e-07 | |
| a | 5.701463544903181 | 7.7556e-06 | au |
| q | 1.027131894158014 | 7.5719e-08 | au |
| i | 54.98284268965604 | 1.3275e-05 | deg |
| node | 270.3414945305101 | 6.587e-06 | deg |
| peri | 207.5065866715602 | 1.601e-05 | deg |
| M | 1.011923667975284 | 2.5449e-06 | deg |
| tp | 2454492.522702546344
(2008-Jan-27.02270255) | 1.1715e-05 | TDB |
| period | 4972.536212522961
13.61 | 0.010146
2.778e-05 | d
yr |
| n | .07239766280502229 | 1.4772e-07 | deg/d |
| Q | 10.37579519564835 | 1.4114e-05 | au |
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Additional Model Parameters
| Parameter | Value | Uncertainty (1-sigma) |
| A1 [EST] | 5.949851668473747E-10 | 8.756E-11 |
| A2 [EST] | 1.386552307406487E-10 | 1.674E-13 |
| A3 [EST] | -4.321175719112E-10 | 1.032E-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 |
14.9 |
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1. |
K215/12 |
2 parameter fit from 226 observations, autocmod 2.9c |
| comet total magnitude slope |
K1 |
4.5 |
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n/a |
K215/12 |
autocmod 2.9c |
| diameter |
diameter |
4.5 |
km |
1. |
Harmon, J.K.;Nolan,M.C.;Howell,E.S.;Giorgini,J.D. (2008) IAUC 8909 |
equivalent diameter of a sphere having a volume equal to the sum of a 3km and 4km sphere |
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| 8P/Tuttle Discovered 1790-Jan-09 by Mechain, Pierre F. A. at Paris, 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 | | 1994.5 | | 1994 XV | 1992r |
| 1980.8 | | 1980 XIII | 1980h |
| 1967.2 | | 1967 V | 1967a |
| 1940.0 | | 1939 X | 1939k |
| 1926.4 | | 1926 IV | 1926a |
| 1912.8 | | 1912 IV | 1912b |
| 1899.2 | | 1899 III | 1899b |
| 1885.5 | | 1885 IV | 1885b |
| 1871.9 | 8P/1871 T1 | 1871 III | 1871d |
| 1858.3 | 8P/1858 A1 | 1858 I | |
| 1790.2 | 8P/1790 A2 | 1790 II | |
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