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160397 (2004 PJ85)
Classification: Main-belt Asteroid          SPK-ID: 2160397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387134054947094 3.5764e-08  
a 2.223703741986184 1.0475e-08 au
q 1.692875848925333 8.4168e-08 au
i 7.205143682134831 4.0232e-06 deg
node 10.9195785510755 2.8178e-05 deg
peri 302.3168170636669 2.9535e-05 deg
M 302.8039225303045 8.1093e-06 deg
tp 2459192.932118983970
(2020-Dec-09.43211898)
2.7679e-05 TDB
period 1211.194296862996
3.32
8.5582e-06
2.343e-08
d
yr
n .2972272912218983 2.1002e-09 deg/d
Q 2.754531635047035 1.2976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      9972 days (27.30 yr)  
   first obs. used      1993-02-26  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52875  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:07:59  

Additional Information
 Earth MOID = .692978 au 
 Jupiter MOID = 2.5708 au 
 T_jup = 3.600 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO433025  

160397 (2004 PJ85)          Discovered 2004-Aug-10 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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