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JPL Small-Body Database Browser
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39021 (2000 UO54)
Classification: Main-belt Asteroid          SPK-ID: 2039021
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01337995006816448 3.6094e-08  
a 2.446914709047351 1.0898e-08 au
q 2.41417511241924 9.157e-08 au
i 3.594576238476268 3.1131e-06 deg
node 142.1543517477214 6.0758e-05 deg
peri 59.45284022501194 0.00013703 deg
M 252.8102008253282 0.00012462 deg
tp 2459416.772413277118
(2021-Jul-21.27241328)
0.00048511 TDB
period 1398.062781473827
3.83
9.3401e-06
2.557e-08
d
yr
n .2574991658246498 1.7203e-09 deg/d
Q 2.479654305675461 1.1044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1998-02-26  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:08:10  

Additional Information
 Earth MOID = 1.41127 au 
 Jupiter MOID = 2.47711 au 
 T_jup = 3.495 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456852.5 (2014-Jul-14.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01308541960389016 3.6034e-08  
q 2.414753912395507 9.1152e-08 au
tp 2456637.225742399894
(2013-Dec-10.72574240)
0.00049077 TDB
node 142.2077345978026 6.0743e-05 deg
peri 63.64071633716179 0.00014001 deg
i 3.594877127050851 3.1143e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1998-02-26  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:08:10  

Additional Information
 Jupiter MOID = 2.47711 au 
 T_jup = 3.495 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.298438370140189E-15 -3.262891119022798E-15 -1.460897173055263E-12 -1.642508807184874E-14 -3.518275097092749E-13 2.114729634467295E-16
q -3.262891119022798E-15 8.308642204109902E-15 5.691222966663096E-12 4.162141961428812E-14 1.405754167812453E-12 -4.521044869908511E-16
tp -1.460897173055263E-12 5.691222966663096E-12 2.408554347659646E-7 -1.090862948784528E-11 6.192573843046659E-8 -4.119522254871964E-12
node -1.642508807184874E-14 4.162141961428812E-14 -1.090862948784528E-11 3.689651694379922E-9 -3.685060050291075E-9 3.876086889482346E-11
peri -3.518275097092749E-13 1.405754167812453E-12 6.192573843046659E-8 -3.685060050291075E-9 1.960234449913879E-8 -3.974653504640561E-11
i 2.114729634467295E-16 -4.521044869908511E-16 -4.119522254871964E-12 3.876086889482346E-11 -3.974653504640561E-11 9.698996943047753E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO452711  
diameter diameter 3.398 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.187   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39021 (2000 UO54)          Discovered 2000-Oct-24 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 UO54 = 1998 FH17 = 1998 FJ7 = 1999 NL16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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