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2932 Kempchinsky (1980 TK4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002932
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087257884232158 3.9239e-08  
a 3.631735875265146 2.1214e-08 au
q 3.236872528882065 1.4538e-07 au
i 2.278061201335342 4.1625e-06 deg
node 169.3228606071827 9.7533e-05 deg
peri 197.1315139039086 9.8955e-05 deg
M 271.1283852388372 1.801e-05 deg
tp 2459624.565797729668
(2022-Feb-14.06579773)
0.00012867 TDB
period 2527.957748786842
6.92
2.215e-05
6.064e-08
d
yr
n .1424074433889422 1.2478e-09 deg/d
Q 4.026599221648227 2.352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2691  
   data-arc span      24327 days (66.60 yr)  
   first obs. used      1953-11-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:51:23  

Additional Information
 Earth MOID = 2.23544 au 
 Jupiter MOID = 1.43419 au 
 T_jup = 3.092 
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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 11.6   n/a MPO435725  
diameter diameter 29.283 km 8.880 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.061   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

2932 Kempchinsky (1980 TK4)          Discovered 1980-Oct-09 by Shoemaker, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1980 TK4 = 1953 VM2 = 1973 SK6 = 1973 UN = 1979 OV = 1980 RQ4 = 1980 TN10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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