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163373 (2002 PZ39)
Classification: Apollo [NEO, PHA]          SPK-ID: 2163373
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 134 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5463568967051039 1.295e-08  
a 1.469075808178254 1.0208e-08 au
q .6664361085974408 1.9753e-08 au
i 1.668193102046357 3.6417e-06 deg
node 328.9010191944886 3.7788e-05 deg
peri 259.9939975910931 3.8046e-05 deg
M 30.45948167409698 2.7112e-07 deg
tp 2458945.471871155203
(2020-Apr-05.97187116)
2.6875e-07 TDB
period 650.3763457332171
1.78
6.7788e-06
1.856e-08
d
yr
n .5535256661189691 5.7693e-09 deg/d
Q 2.271715507759068 1.5785e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   # delay obs. used      2  
   # Doppler obs. used      2  
   data-arc span      9133 days (25.00 yr)  
   first obs. used      1995-10-23  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:45  

Additional Information
 Earth MOID = .00272421 au 
 Jupiter MOID = 2.72709 au 
 T_jup = 4.432 
[ 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 18.96   n/a E2021B55  
rotation period rot_per 148.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]

163373 (2002 PZ39)          Discovered 2002-Aug-10 by LINEAR at Socorro
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

[ show close-approach data ]
Alternate Designations
 2002 PZ39 = 1995 UQ53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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