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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099242229463402 4.8202e-08  
a 2.738818884792335 1.3425e-08 au
q 2.437756347090775 1.3036e-07 au
i 3.832847940198446 4.3458e-06 deg
node 222.7264296688049 5.9724e-05 deg
peri 130.0889587652443 6.2124e-05 deg
M 211.8885371586653 2.009e-05 deg
tp 2459881.629308524841
(2022-Oct-29.12930853)
9.4619e-05 TDB
period 1655.554177677807
4.53
1.2173e-05
3.333e-08
d
yr
n .217449845407633 1.5988e-09 deg/d
Q 3.039881422493894 1.4901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1387  
   data-arc span      10700 days (29.30 yr)  
   first obs. used      1991-12-07  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5133  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:02:10  

Additional Information
 Earth MOID = 1.43305 au 
 Jupiter MOID = 2.38574 au 
 T_jup = 3.339 
[ 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 14.52   n/a E2021B10  
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

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