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145910 (1999 UB)
Classification: Main-belt Asteroid          SPK-ID: 2145910
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08568194579323653 4.4055e-08  
a 2.272505391349268 1.2508e-08 au
q 2.077792707592842 1.0069e-07 au
i 7.382636295883128 7.0709e-06 deg
node 10.89390635331659 3.5976e-05 deg
peri 100.4123503980909 5.7965e-05 deg
M 299.7071194518658 4.6927e-05 deg
tp 2459210.065285141428
(2020-Dec-26.56528514)
0.000164 TDB
period 1251.283766259675
3.43
1.033e-05
2.828e-08
d
yr
n .2877045237117625 2.3752e-09 deg/d
Q 2.467218075105694 1.3579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      7683 days (21.03 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57731  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:32:17  

Additional Information
 Earth MOID = 1.10903 au 
 Jupiter MOID = 2.60305 au 
 T_jup = 3.596 
[ 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 MPO453925  

145910 (1999 UB)          Discovered 1999-Oct-16 by Kusnirak, P., Pravec, P. at Ondrejov
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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