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409P/LONEOS-Hill
Classification: Jupiter-family Comet          SPK-ID: 1002317
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2456797.5 (2014-May-20.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7106824016430022 7.1565e-08  
a 6.053223848990892 2.0181e-08 au
q 1.751304186307347 4.291e-07 au
i 17.14393798283152 9.7136e-06 deg
node 143.7809552179703 1.8066e-05 deg
peri 15.04347605769611 4.7814e-05 deg
M 198.3424062018047 5.8356e-06 deg
tp 2459240.211280780291
(2021-Jan-25.71128078)
9.2775e-05 TDB
period 5439.744836105075
14.89
2.7203e-05
7.448e-08
d
yr
n .06617957474964295 3.3096e-10 deg/d
Q 10.35514351167444 3.4523e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1676  
   data-arc span      5692 days (15.58 yr)  
   first obs. used      2005-12-04  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55045  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-26 23:12:41  

Additional Information
 Earth MOID = .767513 au 
 Jupiter MOID = .960645 au 
 T_jup = 2.310 
[ 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 14.3   0.6 39 2 parameter fit from 1124 observations, autocmod 2.9c
comet total magnitude slope K1 8.5   n/a 39 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2021.1   409P/2020 V1       
 2006.2   409P/2005 XA54       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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