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JPL Small-Body Database Browser
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389P/Siding Spring (2006 R1)
Classification: Jupiter-family Comet*          SPK-ID: 1002413
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2455471.5 (2010-Oct-02.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7027041690137906 4.4491e-07  
a 5.625236873681513 4.749e-07 au
q 1.672359470855412 2.5941e-06 au
i 160.0723442267234 4.4616e-05 deg
node 218.8375529770477 0.00020611 deg
peri 249.5645168829546 0.00073175 deg
M 109.9550999011051 8.2742e-05 deg
tp 2453983.090182503860
(2006-Sep-04.59018250)
0.00097331 TDB
period 4873.148537726218
13.34
0.00061711
1.69e-06
d
yr
n .07387421032070035 9.355e-09 deg/d
Q 9.578114276507614 8.0861e-07 au
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      4781 days (13.09 yr)  
   first obs. used      2006-09-01  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35185  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-09 09:50:42  

Additional Information
 Earth MOID = .77752 au 
 Jupiter MOID = .555184 au 
 T_jup = -0.466 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.1   0.3 10 2 parameter fit from 51 observations, autocmod 2.8
comet total magnitude slope K1 20.   n/a 10 autocmod 2.8
comet nuclear magnitude M2 19.3   0.6 10 from 6 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 10 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 10 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.0   389P/2019 S1       
 2006.7   389P/2006 R1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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