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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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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 .0107745705709347 6.3941e-08  
a 2.701041169309121 2.5606e-08 au
q 2.6719386106154 1.6728e-07 au
i .8569037446598472 6.5158e-06 deg
node 291.6123418359791 0.00047617 deg
peri 258.2848448280261 0.0006238 deg
M 179.0853093085458 0.00040872 deg
tp 2458193.910260541959
(2018-Mar-16.41026054)
0.0018347 TDB
period 1621.418905470425
4.44
2.3057e-05
6.313e-08
d
yr
n .2220277553107429 3.1573e-09 deg/d
Q 2.730143728002842 2.5882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      9424 days (25.80 yr)  
   first obs. used      1995-01-07  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:02:16  

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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