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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 2451040.5 (1998-Aug-15.0) TDB
Reference: JPL J985/69 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | 0.905552720972412 | 6.8031e-08 | |
a | 10.3383382297577 | 5.1724e-07 | au |
q | 0.976427915467506 | 7.3483e-07 | au |
i | 162.486575379434 | 1.9316e-05 | deg |
node | 235.270989149082 | 0.00010014 | deg |
peri | 172.5002736828059 | 0.000146 | deg |
M | 4.97833968468816 | 1.3565e-06 | deg |
tp | 2450872.597734112361 (1998-Feb-28.09773411) | 3.9005e-05 | TDB |
period | 12141.56115249823 33.24 | 0.00091119 2.495e-06 | d yr |
n | .02965022335088491 | 2.2252e-09 | deg/d |
Q | 19.70024854404794 | 9.8563e-07 | au |
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Additional Model Parameters
Parameter | Value | Uncertainty (1-sigma) |
A1 [EST] | 1.580981480640338E-9 | 3.486E-10 |
A2 [EST] | 9.186415654543854E-11 | 1.974E-13 |
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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 |
10. |
|
n/a |
ICQ 1998 Handbook |
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comet total magnitude slope |
K1 |
25.0 |
|
n/a |
ICQ 1998 Handbook |
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comet nuclear magnitude |
M2 |
16. |
|
n/a |
ICQ 1998 Handbook |
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comet nuclear magnitude slope |
K2 |
10.0 |
|
n/a |
ICQ 1998 Handbook |
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diameter |
diameter |
3.6 |
km |
n/a |
Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264 |
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geometric albedo |
albedo |
0.06 |
|
0.015 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
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55P/Tempel-Tuttle Discovered 1866-Jan-06 by Tuttle, Horace at Harvard College Observatory, Massachusetts |
First known observation: 1366/10/25 |
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 | 1998.2 | 55P/1997 E1 | | |
1964.9 | 55P/1965 M2 | 1965 IV | 1965i |
1865.2 | 55P/1865 Y1 | 1866 I | |
1699.0 | 55P/1699 U1 | 1699 II | |
1366.5 | 55P/1366 U1 | 1366 | |
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