[ hide orbit diagram ]
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 2455790.5 (2011-Aug-17.0) TDB
Reference: JPL K183/16 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .6004185820693869 | 5.1286e-08 | |
| a | 3.563306952548709 | 5.5731e-08 | au |
| q | 1.423831244621425 | 1.7916e-07 | au |
| i | 19.04985118598757 | 5.3882e-06 | deg |
| node | 118.8784376365813 | 1.931e-05 | deg |
| peri | 332.7869603600927 | 2.3589e-05 | deg |
| M | 350.7575413572662 | 5.1044e-06 | deg |
| tp | 2455853.575876597786
(2011-Oct-19.07587660) | 3.5579e-05 | TDB |
| period | 2456.84795063216
6.73 | 5.7638e-05
1.578e-07 | d
yr |
| n | .1465292143567005 | 3.4376e-09 | deg/d |
| Q | 5.702782660475993 | 8.9192e-08 | au |
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Additional Model Parameters
| Parameter | Value | Uncertainty (1-sigma) |
| A1 [EST] | -1.666508415694754E-10 | 1.533E-11 |
| A2 [EST] | 6.254689872849799E-11 | 6.21E-12 |
| A3 [EST] | 3.445296683804785E-10 | 2.147E-11 |
| DT [EST] | 155.5764343485833 | 9.111 |
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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 |
2.630214242012063E-15 |
-9.12041224291737E-15 |
6.519478679446181E-13 |
-5.511653046471032E-14 |
-1.421666658904428E-13 |
-3.997964267728815E-14 |
2.001487822221897E-19 |
-1.092500710064893E-19 |
-1.227879396223298E-20 |
-1.016262834117772E-8 |
| q |
-9.12041224291737E-15 |
3.209732067139983E-14 |
-1.912582371115194E-12 |
1.397780083001397E-13 |
6.660897957303352E-13 |
1.080464077392914E-13 |
-9.514107533305797E-19 |
4.810863674831988E-19 |
-3.571553841813672E-20 |
-1.044531764597677E-8 |
| tp |
6.519478679446181E-13 |
-1.912582371115194E-12 |
1.265863584779443E-9 |
-6.259559712969625E-11 |
4.260317601006719E-10 |
-9.788190906940101E-12 |
3.762482337570625E-17 |
9.032467048400331E-18 |
-7.610330149549629E-17 |
8.045031356560858E-5 |
| node |
-5.511653046471032E-14 |
1.397780083001397E-13 |
-6.259559712969625E-11 |
3.728730852539146E-10 |
-3.697157675774686E-10 |
4.283230980181383E-11 |
-3.115403098850367E-17 |
1.339885226843991E-17 |
8.484533664314374E-17 |
-8.390434647769974E-6 |
| peri |
-1.421666658904428E-13 |
6.660897957303352E-13 |
4.260317601006719E-10 |
-3.697157675774686E-10 |
5.564357706951653E-10 |
-3.486778358761127E-11 |
1.732421512175432E-17 |
1.081354944613615E-17 |
-1.07243974665186E-16 |
5.19524050992508E-5 |
| i |
-3.997964267728815E-14 |
1.080464077392914E-13 |
-9.788190906940101E-12 |
4.283230980181383E-11 |
-3.486778358761127E-11 |
2.903239930448517E-11 |
1.363267030145489E-17 |
-3.08940398822917E-19 |
-7.643519624818041E-18 |
1.640918381249806E-5 |
| A1 |
2.001487822221897E-19 |
-9.514107533305797E-19 |
3.762482337570625E-17 |
-3.115403098850367E-17 |
1.732421512175432E-17 |
1.363267030145489E-17 |
2.351471043659333E-22 |
-8.542477881061116E-23 |
3.725998842349982E-23 |
7.099671018538321E-11 |
| A2 |
-1.092500710064893E-19 |
4.810863674831988E-19 |
9.032467048400331E-18 |
1.339885226843991E-17 |
1.081354944613615E-17 |
-3.08940398822917E-19 |
-8.542477881061116E-23 |
3.856813982273882E-23 |
-9.896859204348318E-24 |
-5.034546048415971E-12 |
| A3 |
-1.227879396223298E-20 |
-3.571553841813672E-20 |
-7.610330149549629E-17 |
8.484533664314374E-17 |
-1.07243974665186E-16 |
-7.643519624818041E-18 |
3.725998842349982E-23 |
-9.896859204348318E-24 |
4.611513213962679E-22 |
2.357506422132166E-11 |
| DT |
-1.016262834117772E-8 |
-1.044531764597677E-8 |
8.045031356560858E-5 |
-8.390434647769974E-6 |
5.19524050992508E-5 |
1.640918381249806E-5 |
7.099671018538321E-11 |
-5.034546048415971E-12 |
2.357506422132166E-11 |
83.00148271289321 |
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| comet total magnitude |
M1 |
14.2 |
|
0.7 |
K183/16 |
2 parameter fit from 896 observations, autocmod 2.8 |
| comet total magnitude slope |
K1 |
5.75 |
|
n/a |
K183/16 |
autocmod 2.8 |
| diameter |
diameter |
8.48 |
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 |
13.450 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Eisner, N.; Knight, M.M.; Schleigcher, D.G. (2017) Astron. J. 154, A196.] |
| geometric albedo |
albedo |
0.028 |
|
0.005 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
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| 49P/Arend-Rigaux Discovered 1951-Feb-05 by Arend, Silvio and Rigaux, F. at Uccle, Belgium |
| discovered on plate/photo taken on discovery date as well as 2/6 |
| 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 | | 1991.6 | | 1991 XVII | |
| 1984.9 | | 1984 XXI | 1984k |
| 1978.2 | | 1978 III | 1977k |
| 1971.4 | | 1971 IV | 1970j |
| 1964.7 | | 1964 V | 1963g |
| 1958.0 | 49P/1958 B1 | 1957 VII | 1958b |
| 1951.3 | 49P/1951 C2 | 1950 VII | 1951b |
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