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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09244336917921235 9.5894e-08  
a 3.08083050827838 4.8838e-08 AU
q 2.796028156223022 2.9944e-07 AU
i 2.455529222984953 1.0096e-05 deg
node 127.9778990674701 0.00021275 deg
peri 199.8702602684748 0.00021801 deg
M 85.87287293358209 4.5206e-05 deg
tp 2456529.356039578978
(2013-Aug-24.85603958)
0.00024813 JED
period 1975.150241948388
5.41
4.6966e-05
1.286e-07
d
yr
n .1822646158020252 4.334e-09 deg/d
Q 3.365632860333739 5.3353e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6302 days (17.25 yr)  
   first obs. used      1997-08-03  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59368  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 15:12:38  

Additional Information
 Earth MOID = 1.78536 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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