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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6594555979308426 2.0879e-07  
a 1.198133504053467 9.0082e-09 au
q .4080176577369123 2.4808e-07 au
i 17.42353013400372 2.1966e-05 deg
node 326.4554123707155 1.3279e-05 deg
peri 128.8768938500961 2.5851e-05 deg
M 197.3407785896489 4.1914e-05 deg
tp 2459416.937462867604
(2021-Jul-21.43746287)
5.8147e-05 TDB
period 479.0228672973282
1.31
5.4023e-06
1.479e-08
d
yr
n .7515298842227275 8.4756e-09 deg/d
Q 1.988249350370022 1.4949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      4760 days (13.03 yr)  
   first obs. used      2005-07-27  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40462  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:52:00  

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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