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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09244343266990887 7.7558e-08  
a 3.080830485644582 4.4459e-08 AU
q 2.796027940077495 2.2971e-07 AU
i 2.455523874558871 8.0006e-06 deg
node 127.97783127 0.00019802 deg
peri 199.8703395573584 0.00020337 deg
M 85.87286812418243 4.5003e-05 deg
tp 2456529.356071157884
(2013-Aug-24.85607116)
0.00024652 JED
period 1975.150220182267
5.41
4.2755e-05
1.171e-07
d
yr
n .182264617810578 3.9454e-09 deg/d
Q 3.36563303121167 4.8569e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      333  
   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      .54478  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 05:28:42  

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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