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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456863.5 (2014-Jul-25.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .110332849376215 3.9104e-08  
q 2.108251956463544 9.5823e-08 au
tp 2456463.656680045079
(2013-Jun-20.15668005)
8.3916e-05 TDB
node 213.4992009320473 0.00022198 deg
peri 240.4222435199962 0.00022316 deg
i 1.08617803470303 4.6559e-06 deg
  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
 Jupiter MOID = 2.50724 au 
 T_jup = 3.537 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.529100643244116E-15 -3.728805087228184E-15 -2.593969238229999E-13 1.033263726031048E-14 -4.354519330827609E-14 -1.029241751681914E-16
q -3.728805087228184E-15 9.182125980897967E-15 8.662166464403605E-13 -2.63689602115872E-14 1.747992944613264E-13 3.664974142401358E-16
tp -2.593969238229999E-13 8.662166464403605E-13 7.041878880603806E-9 -1.532406251065986E-11 1.939542808412015E-9 8.368752995136019E-13
node 1.033263726031048E-14 -2.63689602115872E-14 -1.532406251065986E-11 4.927482322211735E-8 -4.926981291927051E-8 -1.346517760814691E-10
peri -4.354519330827609E-14 1.747992944613264E-13 1.939542808412015E-9 -4.926981291927051E-8 4.980177639231181E-8 1.348632018734919E-10
i -1.029241751681914E-16 3.664974142401358E-16 8.368752995136019E-13 -1.346517760814691E-10 1.348632018734919E-10 2.16770096516155E-11

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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