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181505 (2006 UR40)
Classification: Main-belt Asteroid          SPK-ID: 2181505
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05107163957161804 6.5475e-08  
a 2.613516471318624 1.9063e-08 au
q 2.480039900080953 1.6535e-07 au
i 5.057414000275763 6.5196e-06 deg
node 35.97290471153121 5.0233e-05 deg
peri 155.4919821318307 6.7463e-05 deg
M 25.66433801347705 4.2243e-05 deg
tp 2459286.481972334023
(2021-Mar-12.98197233)
0.00018154 TDB
period 1543.250012486318
4.23
1.6884e-05
4.623e-08
d
yr
n .2332739329902916 2.5522e-09 deg/d
Q 2.746993042556296 2.0036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      6759 days (18.51 yr)  
   first obs. used      2002-11-07  
   last obs. used      2021-05-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58124  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:38:20  

Additional Information
 Earth MOID = 1.48049 au 
 Jupiter MOID = 2.20616 au 
 T_jup = 3.401 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457351.5 (2015-Nov-25.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05205772865938999 6.5383e-08  
q 2.4773224165671 1.6544e-07 au
tp 2457748.239743801979
(2016-Dec-25.73974380)
0.00018534 TDB
node 36.00388452408092 5.025e-05 deg
peri 156.8335308547756 6.7005e-05 deg
i 5.057437395028543 6.5186e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      6759 days (18.51 yr)  
   first obs. used      2002-11-07  
   last obs. used      2021-05-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58124  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:38:20  

Additional Information
 Jupiter MOID = 2.20616 au 
 T_jup = 3.401 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.27488799504521E-15 -1.076067638979419E-14 -1.117501649903559E-12 1.078236587197346E-14 -3.070695761982486E-13 -1.824017336852043E-16
q -1.076067638979419E-14 2.737096651375321E-14 1.336057698137401E-12 -2.650506328003445E-14 4.095748782720305E-13 4.527197183524448E-16
tp -1.117501649903559E-12 1.336057698137401E-12 3.434923967945844E-8 -2.712171536682451E-11 8.23121905996621E-9 4.864742098678101E-12
node 1.078236587197346E-14 -2.650506328003445E-14 -2.712171536682451E-11 2.525053127146147E-9 -2.521253027448363E-9 -1.187796162715149E-10
peri -3.070695761982486E-13 4.095748782720305E-13 8.23121905996621E-9 -2.521253027448363E-9 4.489654314637989E-9 1.194903695561182E-10
i -1.824017336852043E-16 4.527197183524448E-16 4.864742098678101E-12 -1.187796162715149E-10 1.194903695561182E-10 4.24922997952839E-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 16.67   n/a MPCxxxxx  

181505 (2006 UR40)          Discovered 2006-Oct-16 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2006 UR40 = 2004 FL59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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