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JPL Small-Body Database Browser
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20351 Kaborchardt (1998 HN127)
Classification: Main-belt Asteroid          SPK-ID: 2020351
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1096994752215407 5.1341e-08  
a 2.739381179225419 1.4028e-08 au
q 2.438872501432625 1.3835e-07 au
i 3.832406701113146 4.5426e-06 deg
node 222.7329369420193 6.1458e-05 deg
peri 130.0591641677808 6.3903e-05 deg
M 168.4300699927171 2.035e-05 deg
tp 2458225.691713725728
(2018-Apr-17.19171373)
9.1398e-05 TDB
period 1656.064045278844
4.53
1.2721e-05
3.483e-08
d
yr
n .2173828971326915 1.6698e-09 deg/d
Q 3.039889857018213 1.5567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1287  
   data-arc span      10287 days (28.16 yr)  
   first obs. used      1991-12-07  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:05:15  

Additional Information
 Earth MOID = 1.43588 au 
 Jupiter MOID = 2.38548 au 
 T_jup = 3.339 
[ 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 14.5   n/a MPO378762  
diameter diameter 3.764 km 0.652 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.238   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20351 Kaborchardt           Discovered 1998 Apr. 18 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kasey Lynn Borchardt (b. 1990) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her mathematics project. She attends the Vernon Middle School, Vernon, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

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Alternate Designations
 1998 HN127 = 2000 WE57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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