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212244 (2005 JU57)
Classification: Main-belt Asteroid          SPK-ID: 2212244
[ 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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01077462167050518 9.6348e-08  
a 2.701041185464343 3.9164e-08 au
q 2.671938488574512 2.45e-07 au
i .8568990845388265 8.4719e-06 deg
node 291.6115287286979 0.00065116 deg
peri 258.2855056857288 0.00076843 deg
M 179.0854519681319 0.00041187 deg
tp 2458193.909610775085
(2018-Mar-16.40961078)		 0.0018503 TDB
period 1621.41892001725
4.44		 3.5265e-05
9.655e-08		 d
yr
n .2220277533187845 4.829e-09 deg/d
Q 2.730143882354175 3.9586e-08 au
   Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      8499 days (23.27 yr)  
   first obs. used      1995-01-07  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:55:41  

Additional Information
 Earth MOID = 1.66833 au 
 Jupiter MOID = 2.22888 au 
 T_jup = 3.367 
[ 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 17.0   n/a MPO450007  

212244 (2005 JU57)          Discovered 2005-May-07 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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Alternate Designations
 2005 JU57 = 2004 BQ128 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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