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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08579015593797684 4.3796e-08  
a 2.272914991878061 8.491e-09 au
q 2.077921260291077 1.0043e-07 au
i 7.382313768558317 3.953e-06 deg
node 10.88929438132637 3.5378e-05 deg
peri 100.3275398864129 4.6451e-05 deg
M 357.3246809316051 2.7282e-05 deg
tp 2459209.801356729002
(2020-Dec-26.30135673)
9.4842e-05 TDB
period 1251.622082015668
3.43
7.0136e-06
1.92e-08
d
yr
n .2876267566486523 1.6118e-09 deg/d
Q 2.467908723465045 9.2195e-09 au
  Orbit Determination Parameters
   # obs. used (total)      570  
   data-arc span      7859 days (21.52 yr)  
   first obs. used      1999-10-12  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5126  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:34:08  

Additional Information
 Earth MOID = 1.10907 au 
 Jupiter MOID = 2.60197 au 
 T_jup = 3.595 
[ 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 16.53   n/a MPCxxxxx  

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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