[ show orbit diagram ]
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Orbital Elements at Epoch 2456445.5 (2013-Jun-02.0) TDB
Reference: JPL K154/3 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .641180538092906 | 2.1482e-08 | |
| a | 3.463763991035476 | 2.1391e-08 | au |
| q | 1.242865931436518 | 7.5569e-08 | au |
| i | 7.043449510613212 | 2.2483e-06 | deg |
| node | 50.16855470774527 | 2.6745e-05 | deg |
| peri | 12.74507421242449 | 2.6815e-05 | deg |
| M | 237.4045226131268 | 2.377e-06 | deg |
| tp | 2457247.349411419490
(2015-Aug-12.84941142) | 1.8921e-05 | TDB |
| period | 2354.620205116352
6.45 | 2.1812e-05
5.972e-08 | d
yr |
| n | .1528908990153725 | 1.4163e-09 | deg/d |
| Q | 5.684662050634436 | 3.5106e-08 | au |
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Additional Model Parameters
| Parameter | Value | Uncertainty (1-sigma) |
| A1 [EST] | 1.140096931854859E-9 | 1.167E-11 |
| A2 [EST] | -3.411223057087054E-11 | 2.996E-12 |
| A3 [EST] | 3.941666150189035E-10 | 1.177E-11 |
| DT [EST] | 31.84696986913966 | .6294 |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbit Covariance (10×10)
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| |
e |
q |
tp |
node |
peri |
i |
A1 |
A2 |
A3 |
DT |
| e |
4.614977630128522E-16 |
-1.615104201984824E-15 |
1.196026396626596E-13 |
-5.348336137025068E-16 |
3.847728321746744E-14 |
1.927128906553102E-15 |
1.675458286339582E-19 |
-2.888724364517055E-20 |
-8.411655751114849E-21 |
1.708937201784224E-9 |
| q |
-1.615104201984824E-15 |
5.710699244920572E-15 |
-3.256857546899466E-13 |
2.750494146298673E-15 |
-1.323334099499486E-13 |
-6.835244657382747E-15 |
-6.271435630274013E-19 |
1.009822629116421E-19 |
2.369180197658717E-20 |
-4.539126731783603E-9 |
| tp |
1.196026396626596E-13 |
-3.256857546899466E-13 |
3.57995716222153E-10 |
-2.661093195407662E-11 |
6.82938396885769E-11 |
-8.644241168989461E-13 |
-1.132691021281627E-17 |
-1.974401257545518E-17 |
-9.173491523122256E-18 |
5.119562865721395E-6 |
| node |
-5.348336137025068E-16 |
2.750494146298673E-15 |
-2.661093195407662E-11 |
7.152753560027604E-10 |
-7.11406042550618E-10 |
1.507782704720444E-11 |
3.41484165405039E-18 |
5.247200852570656E-18 |
-5.485384032435238E-17 |
-1.252844083292394E-6 |
| peri |
3.847728321746744E-14 |
-1.323334099499486E-13 |
6.82938396885769E-11 |
-7.11406042550618E-10 |
7.190544761849016E-10 |
-1.474743463988722E-11 |
1.240662371956935E-17 |
-8.209882978439084E-18 |
5.283819678613465E-17 |
1.456643028946261E-6 |
| i |
1.927128906553102E-15 |
-6.835244657382747E-15 |
-8.644241168989461E-13 |
1.507782704720444E-11 |
-1.474743463988722E-11 |
5.054758520334592E-12 |
1.299182677939917E-18 |
2.64814759164983E-19 |
-2.572092535870213E-18 |
-1.037733486183506E-7 |
| A1 |
1.675458286339582E-19 |
-6.271435630274013E-19 |
-1.132691021281627E-17 |
3.41484165405039E-18 |
1.240662371956935E-17 |
1.299182677939917E-18 |
1.361779582938339E-22 |
-1.562098573138461E-23 |
-2.342350039270982E-24 |
-5.65686612548828E-13 |
| A2 |
-2.888724364517055E-20 |
1.009822629116421E-19 |
-1.974401257545518E-17 |
5.247200852570656E-18 |
-8.209882978439084E-18 |
2.64814759164983E-19 |
-1.562098573138461E-23 |
8.976521485470133E-24 |
5.830649095689491E-25 |
-1.614856840989245E-12 |
| A3 |
-8.411655751114849E-21 |
2.369180197658717E-20 |
-9.173491523122256E-18 |
-5.485384032435238E-17 |
5.283819678613465E-17 |
-2.572092535870213E-18 |
-2.342350039270982E-24 |
5.830649095689491E-25 |
1.385336970776832E-22 |
-8.282292313088707E-14 |
| DT |
1.708937201784224E-9 |
-4.539126731783603E-9 |
5.119562865721395E-6 |
-1.252844083292394E-6 |
1.456643028946261E-6 |
-1.037733486183506E-7 |
-5.65686612548828E-13 |
-1.614856840989245E-12 |
-8.282292313088707E-14 |
.3960963365730185 |
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| comet total magnitude |
M1 |
11.0 |
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1. |
K154/3 |
2 parameter fit from 923 observations, autocmod 2.9a |
| comet total magnitude slope |
K1 |
12.25 |
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n/a |
K154/3 |
autocmod 2.9a |
| comet nuclear magnitude |
M2 |
13.9 |
|
0.9 |
K154/3 |
from 4038 observations, autocmod 2.9a |
| comet nuclear magnitude slope |
K2 |
5. |
|
n/a |
K154/3 |
autocmod 2.9a |
| comet nuclear phase coefficient |
PC |
0.03 |
|
n/a |
K154/3 |
autocmod 2.9a |
| diameter |
diameter |
4.0 |
km |
n/a |
Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264 |
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| rotation period |
rot_per |
12.76137 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Lowry, S.; Duddy, S.R.; Rozitis, B.; Green, S.F.; et al. (2012) Astron. Astrophys. 548, A12.] |
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| 67P/Churyumov-Gerasimenko Discovered 1969-Oct-22 by Churyumov, Klim Ivanovic at Alma-Ata Observatory, Russia |
| discovered on plate/photo taken on 9/11 |
| 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 | | 1989.8 | | 1989 VI | 1988i |
| 1983.4 | | 1982 VIII | 1982f |
| 1976.9 | 67P/1975 P1 | 1976 VII | 1975i |
| 1970.5 | 67P/1969 R1 | 1969 IV | 1969h |
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