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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457283.5 (2015-Sep-18.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008947179067124143 6.6208e-08  
q 2.678328477553848 1.7171e-07 au
tp 2456598.302767816975
(2013-Nov-01.80276782)
0.0021324 TDB
node 291.8257938040206 0.0004776 deg
peri 264.2230618694402 0.00067102 deg
i .8549923652529264 6.5088e-06 deg
  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
 Jupiter MOID = 2.22888 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.383478637797572E-15 -1.125890388103428E-14 3.478978231883272E-11 -2.681845969770853E-15 7.689286078405527E-12 1.082052226502984E-15
q -1.125890388103428E-14 2.948501364306993E-14 -6.716617325687239E-11 1.789644659857238E-14 -1.481537215435737E-11 -2.64994134399216E-15
tp 3.478978231883272E-11 -6.716617325687239E-11 4.547223125998278E-6 3.493842202988393E-10 1.005155041980352E-6 1.064661433881362E-11
node -2.681845969770853E-15 1.789644659857238E-14 3.493842202988393E-10 2.281023764105296E-7 -2.27997975633731E-7 -4.802875628118815E-11
peri 7.689286078405527E-12 -1.481537215435737E-11 1.005155041980352E-6 -2.27997975633731E-7 4.502623713275188E-7 5.037768640586573E-11
i 1.082052226502984E-15 -2.64994134399216E-15 1.064661433881362E-11 -4.802875628118815E-11 5.037768640586573E-11 4.236452656281366E-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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