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73931 (1997 PK3)
Classification: Main-belt Asteroid          SPK-ID: 2073931
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0925633182983969 1.1536e-07  
a 3.081016870350693 5.4286e-08 AU
q 2.795827725097691 3.7115e-07 AU
i 2.455539034798401 1.1197e-05 deg
node 127.9771681155881 0.00021604 deg
peri 199.8801256079005 0.00022145 deg
M 49.39991361755049 4.5154e-05 deg
tp 2456529.441375524398
(2013-Aug-24.94137552)
0.00024813 JED
period 1975.329462449681
5.41
5.2207e-05
1.429e-07
d
yr
n .1822480790386988 4.8167e-09 deg/d
Q 3.366206015603695 5.9311e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      5884 days (16.11 yr)  
   first obs. used      1997-08-03  
   last obs. used      2013-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61928  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 13:46:13  

Additional Information
 Earth MOID = 1.78331 AU 
 T_jup = 3.220 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO275973  

73931 (1997 PK3)          Discovered 1997-Aug-03 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 PK3 = 2000 DQ89 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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