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20380 (1998 KW47)
Classification: Main-belt Asteroid          SPK-ID: 2020380
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1414278110893101 2.6571e-08  
a 2.522545064463136 7.9703e-09 au
q 2.165787037621972 6.795e-08 au
i 2.758060531469078 1.3071e-06 deg
node 207.9618508233397 1.4779e-05 deg
peri 35.18388844431868 1.4736e-05 deg
M 232.8702064554227 6.8984e-06 deg
tp 2459717.275205172335
(2022-May-17.77520517)
2.9527e-05 TDB
period 1463.379029218726
4.01
6.9356e-06
1.899e-08
d
yr
n .2460059853339555 1.1659e-09 deg/d
Q 2.8793030913043 9.0976e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2733  
   data-arc span      15147 days (41.47 yr)  
   first obs. used      1979-09-24  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43081  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:01  

Additional Information
 Earth MOID = 1.15213 au 
 Jupiter MOID = 2.13177 au 
 T_jup = 3.440 
[ 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 13.4   n/a MPO502320  
diameter diameter 5.665 km 0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20380 (1998 KW47)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KW47 = 1979 SD11 = 1995 UW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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