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20374 (1998 KD38)
Classification: Main-belt Asteroid          SPK-ID: 2020374
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .2260342034938253 6.5333e-08  
a 2.897631232029165 1.3814e-08 au
q 2.242667464478621 1.8684e-07 au
i 14.78382557287323 4.6681e-06 deg
node 77.53401909639979 1.4367e-05 deg
peri 285.2057666155908 1.7463e-05 deg
M 74.65031224948511 1.1792e-05 deg
tp 2458626.912595311855
(2019-May-23.41259531)
5.8351e-05 TDB
period 1801.619599905421
4.93
1.2883e-05
3.527e-08
d
yr
n .1998202062293832 1.4289e-09 deg/d
Q 3.552594999579708 1.6937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1879  
   data-arc span      23715 days (64.93 yr)  
   first obs. used      1955-11-19  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46125  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:03:13  

Additional Information
 Earth MOID = 1.29494 au 
 Jupiter MOID = 2.13045 au 
 T_jup = 3.201 
[ 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 13.1   n/a MPO416925  
diameter diameter 6.329 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.305   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20374 (1998 KD38)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KD38 = 1999 WF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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