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523959 (1998 UE51)
Classification: Outer Main-belt Asteroid          SPK-ID: 2523959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281966738905882 1.0663e-07  
a 3.211683026221134 6.4664e-08 au
q 2.799955944668726 3.4201e-07 au
i 19.51379692544651 1.682e-05 deg
node 45.63027991998197 2.7338e-05 deg
peri 223.1481246598157 8.3224e-05 deg
M 31.0150114002676 7.0997e-05 deg
tp 2458819.379801304778
(2019-Dec-01.87980131)
0.00041622 TDB
period 2102.313318179772
5.76
6.3492e-05
1.738e-07
d
yr
n .1712399369241953 5.1716e-09 deg/d
Q 3.623410107773541 7.2954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      54  
   data-arc span      8860 days (24.26 yr)  
   first obs. used      1996-04-20  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69476  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:40:59  

Additional Information
 Earth MOID = 1.81592 au 
 Jupiter MOID = 1.50182 au 
 T_jup = 3.089 
[ 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 16.2   .31556 MPO450840 autocmod 2.6n

523959 (1998 UE51)          Discovered 1998-Oct-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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