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159P/LONEOS
Classification: Jupiter-family Comet          SPK-ID: 1000470
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 2457045.5 (2015-Jan-23.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3821592696256221 1.265e-07  
a 5.860117486916286 9.2651e-08 au
q 3.620619268196022 7.3252e-07 au
i 23.46391152377497 1.2843e-05 deg
node 55.07105055005159 2.9314e-05 deg
peri 4.868166010531844 7.1157e-05 deg
M 275.5097621342352 3.0339e-05 deg
tp 2458261.579433006221
(2018-May-23.07943301)
0.00044069 TDB
period 5181.528741554533
14.19
0.00012288
3.364e-07
d
yr
n .06947756501144002 1.6477e-09 deg/d
Q 8.099615705636548 1.2806e-07 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      11098 days (30.38 yr)  
   first obs. used      1989-12-17  
   last obs. used      2020-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54852  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 12:44:58  

Additional Information
 Earth MOID = 2.63259 au 
 Jupiter MOID = 1.34484 au 
 T_jup = 2.687 
[ 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 12.9   0.9 51 2 parameter fit from 509 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 51 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2004.2   159P/2003 UD16       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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