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487220 (2014 OJ388)
Classification: Main-belt Asteroid          SPK-ID: 2487220
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1885796851373568 2.5309e-07  
a 3.123127076748476 2.3898e-07 au
q 2.534168755971295 7.4711e-07 au
i 16.7152807089354 2.6791e-05 deg
node 333.6681012099296 3.2697e-05 deg
peri 5.853094934188198 5.0656e-05 deg
M 3.169702084794233 5.4623e-05 deg
tp 2458982.749979663927
(2020-May-13.24997966)
0.00030431 TDB
period 2015.964639592024
5.52
0.00023139
6.335e-07
d
yr
n .1785745607486717 2.0496e-08 deg/d
Q 3.712085397525658 2.8404e-07 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      2689 days (7.36 yr)  
   first obs. used      2009-09-25  
   last obs. used      2017-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62823  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 00:19:40  

Additional Information
 Earth MOID = 1.52565 au 
 Jupiter MOID = 1.68793 au 
 T_jup = 3.123 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457024.5 (2015-Jan-02.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917719444538128 2.5058e-07  
q 2.522886835500758 7.4122e-07 au
tp 2456970.191407450459
(2014-Nov-08.69140745)
0.00018912 TDB
node 333.8649942487212 3.2799e-05 deg
peri 6.158509945176887 5.0212e-05 deg
i 16.72808837283053 2.6783e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      2689 days (7.36 yr)  
   first obs. used      2009-09-25  
   last obs. used      2017-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62823  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 00:19:40  

Additional Information
 Jupiter MOID = 1.68793 au 
 T_jup = 3.123 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.279094752768966E-14 -1.801928655562774E-13 -3.480161800427973E-11 2.286727697667671E-13 -6.626163248680211E-12 -2.586102642502743E-13
q -1.801928655562774E-13 5.494039952708253E-13 1.105182330744367E-10 -7.397374543409066E-13 2.140261301410341E-11 8.753788413945564E-13
tp -3.480161800427973E-11 1.105182330744367E-10 3.576480395981999E-8 -1.525899840398073E-10 7.282087488243438E-9 1.762997385795293E-10
node 2.286727697667671E-13 -7.397374543409066E-13 -1.525899840398073E-10 1.075772673915052E-9 -1.057034334799104E-9 -5.485488652966702E-10
peri -6.626163248680211E-12 2.140261301410341E-11 7.282087488243438E-9 -1.057034334799104E-9 2.521229456757601E-9 5.582110422193497E-10
i -2.586102642502743E-13 8.753788413945564E-13 1.762997385795293E-10 -5.485488652966702E-10 5.582110422193497E-10 7.173117311791512E-10

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 16.6   n/a MPO398977  

487220 (2014 OJ388)          Discovered 2012-Mar-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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