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JPL Small-Body Database Browser
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185973 (2001 KH21)
Classification: Main-belt Asteroid          SPK-ID: 2185973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2723884217204802 3.8179e-08  
a 2.341843621891961 1.2622e-08 au
q 1.703952533808637 9.2824e-08 au
i 22.67178797637343 8.9629e-06 deg
node 71.64077896185142 1.2177e-05 deg
peri 247.9684050196659 2.2026e-05 deg
M 53.48695508991138 1.6786e-05 deg
tp 2458806.017450874708
(2019-Nov-18.51745087)
6.0663e-05 TDB
period 1308.98679065601
3.58
1.0583e-05
2.897e-08
d
yr
n .2750218738415098 2.2234e-09 deg/d
Q 2.979734709975285 1.606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      7583 days (20.76 yr)  
   first obs. used      1998-11-13  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58946  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:51:48  

Additional Information
 Earth MOID = .803521 au 
 Jupiter MOID = 2.52524 au 
 T_jup = 3.413 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO433221  

185973 (2001 KH21)          Discovered 2001-May-22 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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