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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583343413604068 2.1732e-08  
a 3.058471589625308 1.4884e-08 au
q 2.574210504912468 6.559e-08 au
i 15.19102825066142 8.83e-07 deg
node 82.85301463804598 6.1539e-06 deg
peri 82.24417236508053 8.1586e-06 deg
M 145.9075660860557 8.2763e-06 deg
tp 2458408.672801891249
(2018-Oct-17.17280189)
4.2328e-05 TDB
period 1953.687522626649
5.35
1.4261e-05
3.904e-08
d
yr
n .1842669289897473 1.3451e-09 deg/d
Q 3.542732674338147 1.7241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1897  
   data-arc span      13969 days (38.25 yr)  
   first obs. used      1982-07-20  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48455  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:55:58  

Additional Information
 Earth MOID = 1.63622 au 
 Jupiter MOID = 1.75339 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 12.98   n/a E2021B10  
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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