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186147 (2001 UL20)
Classification: Main-belt Asteroid          SPK-ID: 2186147
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09200703437439706 5.5731e-08  
a 2.648617781498996 1.8325e-08 au
q 2.404926314231979 1.5188e-07 au
i 2.888559269629793 5.9532e-06 deg
node 40.77146882147042 0.00010108 deg
peri 359.0991494960028 0.00010611 deg
M 148.3112036329119 3.1345e-05 deg
tp 2458551.867327154671
(2019-Mar-09.36732715)
0.00013561 TDB
period 1574.444522763623
4.31
1.634e-05
4.474e-08
d
yr
n .2286520704890204 2.373e-09 deg/d
Q 2.892309248766014 2.0011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      6682 days (18.29 yr)  
   first obs. used      2001-10-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:50:07  

Additional Information
 Earth MOID = 1.41165 au 
 Jupiter MOID = 2.45355 au 
 T_jup = 3.384 
[ 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 16.71   n/a E2021B55  

186147 (2001 UL20)          Discovered 2001-Oct-17 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2001 UL20 = 2007 BJ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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