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20381 (1998 KX47)
Classification: Main-belt Asteroid          SPK-ID: 2020381
[ 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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05554950222479817 3.1602e-08  
a 2.36303305191127 7.8944e-09 au
q 2.231767742136853 7.4079e-08 au
i 8.662318795317162 3.515e-06 deg
node 71.03375838563834 2.4038e-05 deg
peri 125.8166031047697 4.1637e-05 deg
M 126.3465781092517 3.3479e-05 deg
tp 2458734.845177928433
(2019-Sep-08.34517793)		 0.00012328 TDB
period 1326.792845951157
3.63		 6.6488e-06
1.82e-08		 d
yr
n .2713309776266706 1.3597e-09 deg/d
Q 2.494298361685686 8.3329e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2267  
   data-arc span      14260 days (39.04 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43739  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:01  

Additional Information
 Earth MOID = 1.23745 au 
 Jupiter MOID = 2.48386 au 
 T_jup = 3.532 
[ 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 14.05   n/a E2021B10  
diameter diameter 4.652 km 0.423 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.246   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20381 (1998 KX47)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KX47 = 1981 UA22 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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