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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0107745787353045 6.3166e-08  
a 2.701041172275891 2.5351e-08 au
q 2.671938591497906 1.6566e-07 au
i .8569031584700207 6.402e-06 deg
node 291.6123224192573 0.00047452 deg
peri 258.2848569321903 0.00062246 deg
M 179.0853153873414 0.00040865 deg
tp 2458193.910231834506
(2018-Mar-16.41023183)
0.0018344 TDB
period 1621.418908141827
4.44
2.2827e-05
6.25e-08
d
yr
n .2220277549449365 3.1258e-09 deg/d
Q 2.730143753053877 2.5624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      9443 days (25.85 yr)  
   first obs. used      1995-01-07  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:49:09  

Additional Information
 Earth MOID = 1.66833 au 
 Jupiter MOID = 2.22888 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008976016745101201 6.5495e-08  
q 2.678180497804676 1.7023e-07 au
tp 2456598.354312169291
(2013-Nov-01.85431217)
0.002124 TDB
node 291.8236877911673 0.00047598 deg
peri 264.2290929876991 0.00066854 deg
i .854975519585622 6.3948e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      9443 days (25.85 yr)  
   first obs. used      1995-01-07  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:49:09  

Additional Information
 Jupiter MOID = 2.22888 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.289649625397862E-15 -1.104058220070233E-14 3.543689675282247E-11 -9.164700768106997E-16 7.835358038766249E-12 1.104439930218649E-15
q -1.104058220070233E-14 2.897668974916981E-14 -6.873177131367093E-11 1.339020224826492E-14 -1.516805229602122E-11 -2.709564271127402E-15
tp 3.543689675282247E-11 -6.873177131367093E-11 4.511518070300257E-6 3.931881686159309E-10 9.972071947550219E-7 1.22227093893422E-11
node -9.164700768106997E-16 1.339020224826492E-14 3.931881686159309E-10 2.265553932259285E-7 -2.264415226768116E-7 -9.594860405285557E-11
peri 7.835358038766249E-12 -1.516805229602122E-11 9.972071947550219E-7 -2.264415226768116E-7 4.469465056616283E-7 9.86413278282934E-11
i 1.104439930218649E-15 -2.709564271127402E-15 1.22227093893422E-11 -9.594860405285557E-11 9.86413278282934E-11 4.089352400721117E-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 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

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