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JPL Small-Body Database Browser
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59125 (1998 XK20)
Classification: Main-belt Asteroid          SPK-ID: 2059125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109958161485317 3.9262e-08  
a 2.369763731610985 1.0994e-08 au
q 2.106729872141633 9.6275e-08 au
i 1.087412929080521 4.6528e-06 deg
node 213.4758398703364 0.00022187 deg
peri 240.9992688989469 0.00022303 deg
M 324.6223111541562 2.4336e-05 deg
tp 2459131.443202011874
(2020-Oct-08.94320201)
9.0508e-05 TDB
period 1332.465581052577
3.65
9.2729e-06
2.539e-08
d
yr
n .2701758342722964 1.8802e-09 deg/d
Q 2.632797591080336 1.2215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      10131 days (27.74 yr)  
   first obs. used      1992-03-01  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54432  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:42:50  

Additional Information
 Earth MOID = 1.12374 au 
 Jupiter MOID = 2.50724 au 
 T_jup = 3.537 
[ 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 16.3   n/a MPO417233  
diameter diameter 3.420 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59125 (1998 XK20)          Discovered 1998-Dec-10 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XK20 = 1992 ES15 = 2001 SZ270 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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