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312846 (2011 UQ61)
Classification: Main-belt Asteroid          SPK-ID: 2312846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0748004977999428 1.9446e-07  
a 2.557653192083214 3.5505e-08 au
q 2.366339460115777 4.9598e-07 au
i 3.697783223086625 1.047e-05 deg
node 199.5037913397157 0.00010533 deg
peri 162.0605483186111 0.00012579 deg
M 86.72996337978159 7.8399e-05 deg
tp 2458640.562105115509
(2019-Jun-06.06210512)
0.00032596 TDB
period 1494.035476424791
4.09
3.111e-05
8.517e-08
d
yr
n .240958133645846 5.0175e-09 deg/d
Q 2.748966924050651 3.8161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      5347 days (14.64 yr)  
   first obs. used      2005-03-11  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61795  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:06  

Additional Information
 Earth MOID = 1.36364 au 
 Jupiter MOID = 2.57648 au 
 T_jup = 3.430 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456937.5 (2014-Oct-07.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0758684913524362 1.9432e-07  
q 2.363447431053173 4.9588e-07 au
tp 2457141.682660150418
(2015-Apr-29.18266015)
0.00033171 TDB
node 199.5326666273514 0.00010535 deg
peri 160.8814635744549 0.00012595 deg
i 3.696330162200753 1.0473e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      5347 days (14.64 yr)  
   first obs. used      2005-03-11  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61795  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:06  

Additional Information
 Jupiter MOID = 2.57648 au 
 T_jup = 3.430 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.776154696252442E-14 -9.615224244134537E-14 4.853624537993E-11 5.547651075232378E-13 8.948227498641416E-12 -1.603031472830199E-14
q -9.615224244134537E-14 2.45895729788918E-13 -1.260870063551182E-10 -1.416634264857807E-12 -2.339467610098616E-11 4.274002429923984E-14
tp 4.853624537993E-11 -1.260870063551182E-10 1.100319321302845E-7 8.082272056804699E-10 2.277727295059154E-8 -3.722378299797166E-11
node 5.547651075232378E-13 -1.416634264857807E-12 8.082272056804699E-10 1.109758044316728E-8 -1.09113766419065E-8 9.583954563772495E-11
peri 8.948227498641416E-12 -2.339467610098616E-11 2.277727295059154E-8 -1.09113766419065E-8 1.58637939870759E-8 -1.03644676086553E-10
i -1.603031472830199E-14 4.274002429923984E-14 -3.722378299797166E-11 9.583954563772495E-11 -1.03644676086553E-10 1.096810790761448E-10

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 17.2   n/a MPO413278  

312846 (2011 UQ61)          Discovered 2005-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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Alternate Designations
 2011 UQ61 = 2009 DL105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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