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212234 (2005 JP31)
Classification: Main-belt Asteroid          SPK-ID: 2212234
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131743588818879 3.7636e-08  
a 2.718694479466715 2.2218e-08 au
q 2.13913852681067 1.0634e-07 au
i 14.37371579585211 8.1589e-06 deg
node 38.21746463819166 1.7947e-05 deg
peri 272.1117705033546 2.8134e-05 deg
M 70.19085240509867 2.4008e-05 deg
tp 2458681.260184854234
(2019-Jul-16.76018485)
0.00010695 TDB
period 1637.34061511593
4.48
2.0071e-05
5.495e-08
d
yr
n .2198687290087839 2.6953e-09 deg/d
Q 3.29825043212276 2.6955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      8040 days (22.01 yr)  
   first obs. used      1996-04-18  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62187  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:06:04  

Additional Information
 Earth MOID = 1.18356 au 
 Jupiter MOID = 2.18629 au 
 T_jup = 3.282 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456478.5 (2013-Jul-05.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141310152228695 3.7463e-08  
q 2.135527689393627 1.0581e-07 au
tp 2457046.294722257187
(2015-Jan-23.79472226)
9.715e-05 TDB
node 38.23705642185995 1.7936e-05 deg
peri 272.5791444933307 2.8124e-05 deg
i 14.38240859145094 8.1626e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      8040 days (22.01 yr)  
   first obs. used      1996-04-18  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62187  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:06:04  

Additional Information
 Jupiter MOID = 2.18629 au 
 T_jup = 3.282 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.403512231339572E-15 -3.911150163388081E-15 -1.702546033506924E-14 1.995345057104324E-15 -1.835623197446982E-15 3.887385343930953E-15
q -3.911150163388081E-15 1.119566476078787E-14 7.002137670023921E-13 -7.269771471295457E-15 1.201059384074846E-13 -8.985785907291012E-15
tp -1.702546033506924E-14 7.002137670023921E-13 9.438126388403453E-9 -3.054308558440395E-11 2.107570698933949E-9 9.904043129147837E-12
node 1.995345057104324E-15 -7.269771471295457E-15 -3.054308558440395E-11 3.21708875667584E-10 -3.178315247652298E-10 3.635986267594456E-12
peri -1.835623197446982E-15 1.201059384074846E-13 2.107570698933949E-9 -3.178315247652298E-10 7.909470161070203E-10 -1.512902141764385E-12
i 3.887385343930953E-15 -8.985785907291012E-15 9.904043129147837E-12 3.635986267594456E-12 -1.512902141764385E-12 6.66281297196415E-11

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 MPO437019  

212234 (2005 JP31)          Discovered 2005-May-04 by LONEOS at Anderson Mesa
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2005 JP31 = 1996 HP16 = 2001 OC84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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