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JPL Small-Body Database Browser
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146654 (2001 UG101)
Classification: Main-belt Asteroid          SPK-ID: 2146654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09518538728726786 5.5941e-08  
a 2.574913925745283 1.6663e-08 au
q 2.329819746491839 1.4731e-07 au
i 1.647948628807449 5.8765e-06 deg
node 42.16781135959796 0.00015751 deg
peri 172.7657079656139 0.00015909 deg
M 247.9322942824171 2.2502e-05 deg
tp 2459070.308079381440
(2020-Aug-08.80807938)
9.5187e-05 TDB
period 1509.18507249125
4.13
1.4649e-05
4.011e-08
d
yr
n .2385393326252153 2.3154e-09 deg/d
Q 2.820008104998727 1.8249e-08 au
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8711 days (23.85 yr)  
   first obs. used      1995-02-06  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52258  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:15:01  

Additional Information
 Earth MOID = 1.32314 au 
 Jupiter MOID = 2.14572 au 
 T_jup = 3.421 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456515.5 (2013-Aug-11.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0961753515473623 5.5616e-08  
q 2.326615380756773 1.4657e-07 au
tp 2456054.106505375726
(2012-May-06.60650538)
9.3029e-05 TDB
node 42.18988975633795 0.00015748 deg
peri 173.1215045448411 0.00015905 deg
i 1.648452923721005 5.8753e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8711 days (23.85 yr)  
   first obs. used      1995-02-06  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52258  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:15:01  

Additional Information
 Jupiter MOID = 2.14572 au 
 T_jup = 3.421 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.093151523136847E-15 -8.109716833420979E-15 -1.464920633754957E-12 -4.047029623141245E-14 -3.298269642197825E-13 5.948509675095647E-16
q -8.109716833420979E-15 2.148158863764889E-14 3.630637930876772E-12 1.063493612691443E-13 8.312769133249102E-13 -1.478252221579718E-15
tp -1.464920633754957E-12 3.630637930876772E-12 8.65446702247286E-9 1.264771313422043E-11 2.088292814459945E-9 -1.106122299936563E-12
node -4.047029623141245E-14 1.063493612691443E-13 1.264771313422043E-11 2.480086845871112E-8 -2.478680142657111E-8 -3.331488731380591E-10
peri -3.298269642197825E-13 8.312769133249102E-13 2.088292814459945E-9 -2.478680142657111E-8 2.529589114969324E-8 3.32752710479157E-10
i 5.948509675095647E-16 -1.478252221579718E-15 -1.106122299936563E-12 -3.331488731380591E-10 3.32752710479157E-10 3.451956631170828E-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 15.9   n/a MPO426925  

146654 (2001 UG101)          Discovered 2001-Oct-20 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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