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49P/Arend-Rigaux
Classification: Jupiter-family Comet          SPK-ID: 1000002
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 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

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
  Orbit Determination Parameters
   # obs. used (total)      3313  
   data-arc span      5870 days (16.07 yr)  
   first obs. used      2004-06-24  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54353  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2020-Aug-08 22:52:56  

Additional Information
 Earth MOID = .464185 au 
 Jupiter MOID = .157623 au 
 T_jup = 2.711 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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  
rotation period rot_per 13.450 h n/a LCDB (Rev. 2019-August); 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)  

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.disLast Updated: 2003-08-29

[ 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 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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