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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 2455893.5 (2011-Nov-28.0) TDB
Reference: JPL K192/40 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .04427471608842835 | 1.9513e-08 | |
| a | 5.996386131092429 | 3.7978e-08 | au |
| q | 5.730897837581722 | 1.3031e-07 | au |
| i | 9.381134500762691 | 1.8231e-06 | deg |
| node | 312.5886885672811 | 1.0763e-05 | deg |
| peri | 50.30018769133394 | 2.4492e-05 | deg |
| M | 179.7974346535862 | 2.1801e-05 | deg |
| tp | 2453214.863369312957
(2004-Jul-28.36336931) | 0.00033014 | TDB |
| period | 5363.308930993704
14.68 | 5.0953e-05
1.395e-07 | d
yr |
| n | .06712274169396017 | 6.3769e-10 | deg/d |
| Q | 6.261874424603135 | 3.966e-08 | au |
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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 |
8.6 |
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1. |
K192/40 |
2 parameter fit from 6978 observations, autocmod 2.9b |
| comet total magnitude slope |
K1 |
4.5 |
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n/a |
K192/40 |
autocmod 2.9b |
| diameter |
diameter |
60.4 |
km |
7.4 |
Schambeau, C. A.; Fernandez, Y. R.; Lisse, C. M.; Samarasinha, N.; Woodney, L. M. (2015), Icarus 260, pp. 60-72 |
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| geometric albedo |
albedo |
0.033 |
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0.015 |
urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B) |
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| 29P/Schwassmann-Wachmann 1 Discovered 1927-Nov-15 by Schwassmann, A. and Wachmann, A. A. at Hamburg Observatory, Germany |
| discovered on plate/photo taken on discovery date |
| 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 | | 1989.9 | | 1989 XV | |
| 1975.2 | | 1974 II | |
| 1960.5 | | 1957 IV | |
| 1945.8 | | 1941 VI | |
| 1931.2 | 29P/1927 V1 | 1925 II | 1927i |
| 1901.8 | 29P/1902 E1 | 1908 IV | |
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