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312843 (2011 UA55)
Classification: Main-belt Asteroid          SPK-ID: 2312843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011124001444736 7.2588e-08  
a 3.02986007763732 3.5345e-08 au
q 2.72350365308549 2.1637e-07 au
i 8.639089993937182 6.6385e-06 deg
node 235.5832659082606 3.5067e-05 deg
peri 151.478571407013 4.4168e-05 deg
M 251.3132129248983 3.1072e-05 deg
tp 2459582.076080010465
(2022-Jan-02.57608001)
0.0001725 TDB
period 1926.337086945963
5.27
3.3707e-05
9.228e-08
d
yr
n .1868831797090862 3.2701e-09 deg/d
Q 3.336216502189151 3.8918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      8590 days (23.52 yr)  
   first obs. used      1995-11-17  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:48:26  

Additional Information
 Earth MOID = 1.73249 au 
 Jupiter MOID = 2.09544 au 
 T_jup = 3.218 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO476406  

312843 (2011 UA55)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2011 UA55 = 1995 WT17 = 2000 TA28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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