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201992 (2004 PJ84)
Classification: Main-belt Asteroid          SPK-ID: 2201992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2164454262829802 5.215e-08  
a 2.388411969848899 1.2185e-08 au
q 1.871451122895581 1.2321e-07 au
i 3.330486384008766 4.8705e-06 deg
node 140.2902874968482 9.8922e-05 deg
peri 190.0861482903925 9.9828e-05 deg
M 114.0689879034447 1.399e-05 deg
tp 2458573.303807889881
(2019-Mar-30.80380789)
5.0851e-05 TDB
period 1348.224718972883
3.69
1.0317e-05
2.825e-08
d
yr
n .2670178012121441 2.0433e-09 deg/d
Q 2.905372816802216 1.4822e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      7147 days (19.57 yr)  
   first obs. used      2000-07-07  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 00:15:34  

Additional Information
 Earth MOID = .860654 au 
 Jupiter MOID = 2.45486 au 
 T_jup = 3.499 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO440089  

201992 (2004 PJ84)          Discovered 2004-Aug-10 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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