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359844 (2011 UN343)
Classification: Main-belt Asteroid          SPK-ID: 2359844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .1744889707935277 5.5653e-08  
a 3.148405697278561 4.7319e-08 au
q 2.599043627519946 1.7667e-07 au
i 12.37341284699613 4.7224e-06 deg
node 125.6099296445566 3.6698e-05 deg
peri 312.3364201056743 4.5847e-05 deg
M 164.1963143212513 3.2909e-05 deg
tp 2458069.830749649592
(2017-Nov-12.33074965)
0.00016976 TDB
period 2040.4899556432
5.59
4.6002e-05
1.259e-07
d
yr
n .1764282147061691 3.9775e-09 deg/d
Q 3.697767767037176 5.5576e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:21:00  

Additional Information
 Earth MOID = 1.63329 au 
 Jupiter MOID = 1.60075 au 
 T_jup = 3.149 
[ 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 16.2   n/a MPO434269  

359844 (2011 UN343)          Discovered 1995-Dec-25 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2011 UN343 = 1995 YR20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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