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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387861306633496 3.5737e-08  
a 2.224085076732304 1.0553e-08 au
q 1.693004406993298 8.4168e-08 au
i 7.205088099589121 4.0213e-06 deg
node 10.90741823167473 2.8169e-05 deg
peri 302.2774555000258 2.9525e-05 deg
M 2.28041912809308 8.2271e-06 deg
tp 2459192.825719031887
(2020-Dec-09.32571903)
2.7669e-05 TDB
period 1211.505865077901
3.32
8.6227e-06
2.361e-08
d
yr
n .2971508519910068 2.1149e-09 deg/d
Q 2.75516574647131 1.3073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      633  
   data-arc span      9980 days (27.32 yr)  
   first obs. used      1993-02-26  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:11  

Additional Information
 Earth MOID = .691184 au 
 Jupiter MOID = 2.56981 au 
 T_jup = 3.599 
[ 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 16.61   n/a E2021B55  

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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