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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09244343168530511 7.7491e-08  
a 3.08083048599656 4.4444e-08 AU
q 2.796027943430332 2.2945e-07 AU
i 2.455523749515616 7.9882e-06 deg
node 127.9778297506268 0.00019794 deg
peri 199.8703408908636 0.0002033 deg
M 85.87286819837414 4.5002e-05 deg
tp 2456529.356070670088
(2013-Aug-24.85607067)
0.00024652 JED
period 1975.150220520752
5.41
4.2741e-05
1.17e-07
d
yr
n .182264617779343 3.944e-09 deg/d
Q 3.365633028562789 4.8553e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      6351 days (17.39 yr)  
   first obs. used      1997-08-03  
   last obs. used      2014-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5366  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 15:56:47  

Additional Information
 Earth MOID = 1.78535 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 15.1 mag n/a MPO319932  

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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