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523609 (2005 PJ2)
Classification: Apollo [NEO, PHA]          SPK-ID: 2523609
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6594556088105337 2.01e-07  
a 1.198133503562544 8.5094e-09 au
q .408017644534409 2.3894e-07 au
i 17.42353856043321 2.1413e-05 deg
node 326.455405454026 1.243e-05 deg
peri 128.8768998634509 2.4359e-05 deg
M 197.3407803602067 3.9395e-05 deg
tp 2459416.937460378641
(2021-Jul-21.43746038)
5.4656e-05 TDB
period 479.0228670029164
1.31
5.1032e-06
1.397e-08
d
yr
n .7515298846846246 8.0063e-09 deg/d
Q 1.98824936259068 1.4121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      4760 days (13.03 yr)  
   first obs. used      2005-07-27  
   last obs. used      2018-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41394  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 19:23:15  

Additional Information
 Earth MOID = .0440001 au 
 Jupiter MOID = 3.28876 au 
 T_jup = 5.031 
[ 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 19.4   n/a E2018N44  
rotation period rot_per 1.42 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Higley, S.; Hardersen, P.; Dyvig, R. (2008) Minor Planet Bull. 35, 175-177.]

523609 (2005 PJ2)          Discovered 2005-Aug-04 by NEAT at Palomar
Reference: Last Updated: 2018-10-01

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