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181531 (2006 UE137)
Classification: Main-belt Asteroid          SPK-ID: 2181531
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545666402921859 6.6293e-08  
a 2.166502522075676 1.4693e-08 au
q 1.831633506053891 1.5409e-07 au
i 2.996182878694578 3.6522e-06 deg
node 291.6548680730816 8.4529e-05 deg
peri 22.45789938456174 8.558e-05 deg
M 290.6193729329738 1.7046e-05 deg
tp 2459620.977566284562
(2022-Feb-10.47756628)
5.6557e-05 TDB
period 1164.762085306215
3.19
1.1849e-05
3.244e-08
d
yr
n .3090759946099691 3.1443e-09 deg/d
Q 2.50137153809746 1.6965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      6974 days (19.09 yr)  
   first obs. used      2002-05-08  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:38:24  

Additional Information
 Earth MOID = .817453 au 
 Jupiter MOID = 2.75096 au 
 T_jup = 3.675 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457345.5 (2015-Nov-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548968634914721 6.6249e-08  
q 1.831165228211872 1.5405e-07 au
tp 2457290.868950164301
(2015-Sep-25.36895016)
4.5433e-05 TDB
node 291.7288377125427 8.4554e-05 deg
peri 22.37035702272107 8.5601e-05 deg
i 2.995634887813364 3.6519e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      6974 days (19.09 yr)  
   first obs. used      2002-05-08  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:38:24  

Additional Information
 Jupiter MOID = 2.75096 au 
 T_jup = 3.675 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.388911360870076E-15 -1.019536798761589E-14 -2.58080377252704E-13 1.926721670286786E-14 5.87010064124287E-14 -2.838273391893592E-15
q -1.019536798761589E-14 2.373145544754817E-14 7.04316223986255E-13 -4.248183213795959E-14 -1.056814374706777E-13 6.90955451967241E-15
tp -2.58080377252704E-13 7.04316223986255E-13 2.064186053349225E-9 2.766010205767953E-11 6.187196761520088E-10 2.383112902711136E-12
node 1.926721670286786E-14 -4.248183213795959E-14 2.766010205767953E-11 7.149366729336118E-9 -7.130217552780497E-9 2.074132929123179E-11
peri 5.87010064124287E-14 -1.056814374706777E-13 6.187196761520088E-10 -7.130217552780497E-9 7.327495225152396E-9 -2.007136461343038E-11
i -2.838273391893592E-15 6.90955451967241E-15 2.383112902711136E-12 2.074132929123179E-11 -2.007136461343038E-11 1.333619111429487E-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 16.8   n/a MPO449920  

181531 (2006 UE137)          Discovered 2006-Oct-19 by CSS at Catalina
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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