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JPL Small-Body Database Browser
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19503 (1998 KE65)
Classification: Main-belt Asteroid          SPK-ID: 2019503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568321506631185 3.8583e-08  
a 3.06093712864446 1.9117e-08 au
q 2.580883775714558 1.1373e-07 au
i 15.21440110884826 4.94e-06 deg
node 82.93576143959402 1.6725e-05 deg
peri 82.15851588795681 2.5131e-05 deg
M 109.2154654154316 1.6384e-05 deg
tp 2458407.080680892750
(2018-Oct-15.58068089)
9.0215e-05 TDB
period 1956.050400609519
5.36
1.8325e-05
5.017e-08
d
yr
n .1840443374505184 1.7242e-09 deg/d
Q 3.540990481574361 2.2115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1656  
   data-arc span      13797 days (37.77 yr)  
   first obs. used      1982-07-20  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49562  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:02:08  

Additional Information
 Earth MOID = 1.64321 au 
 Jupiter MOID = 1.75641 au 
 T_jup = 3.162 
[ 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 12.9   n/a MPO302185  
diameter diameter 13.643 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19503 (1998 KE65)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20001211/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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