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JPL Small-Body Database Browser
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105021 (2000 KR21)
Classification: Outer Main-belt Asteroid          SPK-ID: 2105021
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08142682911111113 4.3025e-08  
a 3.228470887897142 2.4988e-08 au
q 2.965586740618145 1.3897e-07 au
i 11.4790474973762 4.3229e-06 deg
node 250.6358130062544 2.3831e-05 deg
peri 35.82967917148748 3.6564e-05 deg
M 128.5901703124261 2.8115e-05 deg
tp 2458243.668831059494
(2018-May-05.16883106)
0.00016583 TDB
period 2118.818414787133
5.80
2.4599e-05
6.735e-08
d
yr
n .1699060181314156 1.9726e-09 deg/d
Q 3.49135503517614 2.7022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      2000-05-07  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 02:15:05  

Additional Information
 Earth MOID = 1.95791 au 
 Jupiter MOID = 1.62993 au 
 T_jup = 3.150 
[ show covariance matrix ]

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 13.8   n/a MPO366422  
diameter diameter 5.431 km 1.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.238   0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

105021 (2000 KR21)          Discovered 2000-May-28 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 2000 KR21 = 2001 OY4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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