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201154 (2002 KX4)
Classification: Main-belt Asteroid          SPK-ID: 2201154
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15362729390011 4.5462e-08  
a 2.582550527639811 1.7274e-08 au
q 2.185800278718206 1.1761e-07 au
i 8.278733533383189 5.273e-06 deg
node 85.97378478949544 3.8753e-05 deg
peri 118.4593268501072 4.3157e-05 deg
M 155.3606982606213 2.0258e-05 deg
tp 2458346.300313810080
(2018-Aug-15.80031381)
8.2956e-05 TDB
period 1515.903891171334
4.15
1.521e-05
4.164e-08
d
yr
n .2374820739603941 2.3827e-09 deg/d
Q 2.979300776561417 1.9928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      8294 days (22.71 yr)  
   first obs. used      1996-12-08  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 23:58:16  

Additional Information
 Earth MOID = 1.19534 au 
 Jupiter MOID = 2.02075 au 
 T_jup = 3.393 
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Orbital Elements at Epoch 2457222.5 (2015-Jul-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1527213654657757 4.5576e-08  
q 2.189450483107228 1.1788e-07 au
tp 2456829.582792691680
(2014-Jun-21.08279269)
7.9975e-05 TDB
node 85.99885262760264 3.8766e-05 deg
peri 118.6272620978311 4.3203e-05 deg
i 8.27598644101912 5.2699e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      8294 days (22.71 yr)  
   first obs. used      1996-12-08  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 23:58:16  

Additional Information
 Jupiter MOID = 2.02075 au 
 T_jup = 3.393 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.077128030043575E-15 -5.330751197986985E-15 -9.712847757325125E-13 -4.71804432301088E-15 -2.260775232606398E-13 -5.056134991354113E-15
q -5.330751197986985E-15 1.389587100296002E-14 2.669020108707698E-12 1.14943683194697E-14 6.343523500399791E-13 1.378131389206529E-14
tp -9.712847757325125E-13 2.669020108707698E-12 6.396000738391308E-9 2.505353911585769E-11 1.558194212569975E-9 1.108113604892996E-11
node -4.71804432301088E-15 1.14943683194697E-14 2.505353911585769E-11 1.502824892902573E-9 -1.481020415733121E-9 4.205786060371115E-11
peri -2.260775232606398E-13 6.343523500399791E-13 1.558194212569975E-9 -1.481020415733121E-9 1.866462521606702E-9 -3.888375605819154E-11
i -5.056134991354113E-15 1.378131389206529E-14 1.108113604892996E-11 4.205786060371115E-11 -3.888375605819154E-11 2.777151283652109E-11

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 15.9   n/a MPO494129  
diameter diameter 1.675 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201154 (2002 KX4)          Discovered 2002-May-16 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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