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6P/d'Arrest
Classification: Jupiter-family Comet          SPK-ID: 1000017
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456720.5 (2014-Mar-04.0) TDB
Reference: JPL K155/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6113215449407586 7.6193e-08  
a 3.502568865123947 3.3965e-07 AU
q 1.361373055234976 2.3285e-07 AU
i 19.48173225771278 7.5702e-06 deg
node 138.9362913271884 1.6648e-05 deg
peri 178.1358688587538 3.9938e-05 deg
M 305.3507708416975 4.3618e-05 deg
tp 2457083.962819191834
(2015-Mar-02.46281919)
0.00034185 JED
period 2394.299369347673
6.56
0.00034827
9.535e-07
d
yr
n .1503571377116814 2.1871e-08 deg/d
Q 5.643764675012918 5.4728e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.379948399813244E-9 2.879E-11
A2 [EST] -7.722054319993424E-11 6.363E-12
A3 [EST] -6.344609727451101E-10 1.447E-11
DT [EST] 108.835353524249 1.504
  Orbit Determination Parameters
   # obs. used (total)      2147  
   data-arc span      9839 days (26.94 yr)  
   first obs. used      1987-04-02  
   last obs. used      2014-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59398  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2014-Mar-12 08:50:18  

Additional Information
 Earth MOID = .346473 AU 
 T_jup = 2.710 
[ 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 14.2 mag 1. K155/1 2 parameter fit from 245 observations, autocmod 2.5c
comet total magnitude slope K1 12.   n/a K155/1 autocmod 2.5c
diameter diameter 3.2 km n/a DASTCOM value unverified

6P/d'Arrest          Discovered 1851-Jun-28 by d'Arrest, Heinrich Louis at Leipzig, Germany
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1988.9       1989 II   1987k 
 1982.4       1982 VII   1982e 
 1975.8       1976 XI   1976e 
 1969.3       1970 VII   1970d 
 1962.7       1963 VII   1963f 
 1949.6       1950 II   1950a 
 1943.1       1943 III   
 1923.4       1923 II   1923b 
 1910.3       1910 III   1910c 
 1897.2       1897 II   1897a 
 1890.6       1890 V   1890d 
 1877.5       1877 IV   1877d 
 1870.9       1870 III   1870c 
 1857.8   6P/1857 X1   1857 VII   
 1851.3   6P/1851 M1   1851 II   
 1680.8   6P/1678 R1   1678    
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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