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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 ]

[ show orbit diagram ]
:
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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