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

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


:
Orbital Elements at Epoch 2456498.5 (2013-Jul-25.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .600436983973088 4.747e-08  
a 3.565425546726039 2.7514e-08 AU
q 1.424612184869258 1.7249e-07 AU
i 19.05165464670012 5.1983e-06 deg
node 118.8471037380482 1.7717e-05 deg
peri 332.8715347055068 2.454e-05 deg
M 94.39985566784358 5.9182e-06 deg
tp 2455853.686213617171
(2011-Oct-19.18621362)
3.4251e-05 JED
period 2459.039385765633
6.73
2.8464e-05
7.793e-08
d
yr
n .1463986311418564 1.6946e-09 deg/d
Q 5.70623890858282 4.4034e-08 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.400693616044143E-10 1.636E-11
A2 [EST] -5.578571698888766E-12 1.119E-13
  Orbit Determination Parameters
   # obs. used (total)      2931  
   data-arc span      22807 days (62.44 yr)  
   first obs. used      1951-01-08  
   last obs. used      2013-06-18  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .67042  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2013-Jul-15 11:17:16  

Additional Information
 Earth MOID = .465143 AU 
 T_jup = 2.711 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.8 mag 0.8 68 2 parameter fit from 499 observations, autocmod 2.5c
comet total magnitude slope K1 7.   n/a 68 autocmod 2.5c
diameter diameter 8.48 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A.; (2004) Comets II, pp. 223-264  
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 (012)
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 
 1978.1       1978 III   1977k 
 1971.4       1971 IV   1970j 
 1964.7       1964 V   1963g 
 1957.9   49P/1958 B1   1957 VII   1958b 
 1951.2   49P/1951 C2   1950 VII   1951b 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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