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JPL Small-Body Database Browser
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20385 (1998 KS53)
Classification: Main-belt Asteroid          SPK-ID: 2020385
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305661384618826 3.8319e-08  
a 2.779296778434725 1.5497e-08 au
q 2.416414730434953 1.0521e-07 au
i 9.889720859500532 4.4723e-06 deg
node 133.8847878905717 2.2617e-05 deg
peri 159.8668465837894 2.7442e-05 deg
M 149.3921210946702 1.5619e-05 deg
tp 2457898.194603359374
(2017-May-24.69460336)
7.3128e-05 TDB
period 1692.391412197744
4.63
1.4155e-05
3.875e-08
d
yr
n .2127167494501187 1.7791e-09 deg/d
Q 3.142178826434498 1.752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      9249 days (25.32 yr)  
   first obs. used      1994-08-11  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48359  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:43:42  

Additional Information
 Earth MOID = 1.40244 au 
 Jupiter MOID = 2.08425 au 
 T_jup = 3.300 
[ 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 13.9   n/a MPO381427  
diameter diameter 6.115 km 0.484 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.143   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20385 (1998 KS53)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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