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359742 (2011 UN56)
Classification: Main-belt Asteroid          SPK-ID: 2359742
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452520128672515 5.6152e-08  
a 2.716088941788238 3.3124e-08 au
q 2.321571555867013 1.5097e-07 au
i 6.487823687234428 7.5929e-06 deg
node 243.9017449093165 5.6143e-05 deg
peri 271.6672873388452 6.2429e-05 deg
M 239.6086154034509 2.8271e-05 deg
tp 2459547.273321899080
(2021-Nov-28.77332190)
0.00013311 TDB
period 1634.987391691737
4.48
2.9909e-05
8.189e-08
d
yr
n .2201851841973561 4.0279e-09 deg/d
Q 3.110606327709462 3.7935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5231 days (14.32 yr)  
   first obs. used      2004-03-16  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55085  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:57:44  

Additional Information
 Earth MOID = 1.34231 au 
 Jupiter MOID = 1.94606 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457043.5 (2015-Jan-21.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438417525367137 5.6412e-08  
q 2.32705684151206 1.5163e-07 au
tp 2456276.344428685709
(2012-Dec-14.84442869)
0.000117 TDB
node 243.9394968943937 5.6198e-05 deg
peri 271.8854660193931 6.2554e-05 deg
i 6.481811793138168 7.5886e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5231 days (14.32 yr)  
   first obs. used      2004-03-16  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55085  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:57:44  

Additional Information
 Jupiter MOID = 1.94606 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.182336594007783E-15 -8.403764563757584E-15 4.812386979688851E-13 -4.454271654775255E-15 1.154475162576109E-13 -6.618283904008059E-15
q -8.403764563757584E-15 2.299126960580666E-14 -1.164606630452319E-12 1.340583902443033E-14 -1.967398429953425E-13 1.923457955410201E-14
tp 4.812386979688851E-13 -1.164606630452319E-12 1.36885764285949E-8 1.66088155362802E-11 3.234359257350629E-9 -6.807299371834188E-12
node -4.454271654775255E-15 1.340583902443033E-14 1.66088155362802E-11 3.158199851841889E-9 -3.132938437951496E-9 -2.630648033008483E-11
peri 1.154475162576109E-13 -1.967398429953425E-13 3.234359257350629E-9 -3.132938437951496E-9 3.913043866661469E-9 2.474739106926004E-11
i -6.618283904008059E-15 1.923457955410201E-14 -6.807299371834188E-12 -2.630648033008483E-11 2.474739106926004E-11 5.758654585475823E-11

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 16.4   n/a MPO455596  

359742 (2011 UN56)          Discovered 2004-Mar-16 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Alternate Designations
 2011 UN56 = 2004 FB14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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