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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884675725747512 2.4681e-07  
a 3.122866896964025 1.1893e-07 au
q 2.534307753419169 6.7934e-07 au
i 16.71563809841336 8.8419e-06 deg
node 333.6685521440291 2.0657e-05 deg
peri 5.885024186595549 4.0379e-05 deg
M 38.86931465411347 1.9194e-05 deg
tp 2458982.862854840501
(2020-May-13.36285484)
0.00010921 TDB
period 2015.712727497968
5.52
0.00011515
3.153e-07
d
yr
n .1785968779622953 1.0202e-08 deg/d
Q 3.711426040508881 1.4134e-07 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      4070 days (11.14 yr)  
   first obs. used      2009-09-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:40:50  

Additional Information
 Earth MOID = 1.52394 au 
 Jupiter MOID = 1.68913 au 
 T_jup = 3.124 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458263.5 (2018-May-25.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903376928913524 2.4561e-07  
q 2.528696006659919 6.8061e-07 au
tp 2458982.952591261128
(2020-May-13.45259126)
0.00010718 TDB
node 333.845524525192 2.0641e-05 deg
peri 5.918654934034143 3.9756e-05 deg
i 16.71364355810154 8.8459e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      4070 days (11.14 yr)  
   first obs. used      2009-09-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:40:50  

Additional Information
 Jupiter MOID = 1.68913 au 
 T_jup = 3.124 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.032666863205148E-14 -1.670172872919686E-13 -4.979266533581966E-12 1.400970099141144E-13 -5.759768670065335E-12 -2.638966876390885E-13
q -1.670172872919686E-13 4.632361278362893E-13 1.390839042775813E-11 -3.777957200566443E-13 1.589337650759823E-11 7.365183085158103E-13
tp -4.979266533581966E-12 1.390839042775813E-11 1.148702513410022E-8 9.535184115337402E-12 3.079588606383431E-9 -5.416685136575531E-12
node 1.400970099141144E-13 -3.777957200566443E-13 9.535184115337402E-12 4.260593036571942E-10 -4.171195227565688E-10 8.468371548145111E-11
peri -5.759768670065335E-12 1.589337650759823E-11 3.079588606383431E-9 -4.171195227565688E-10 1.580549215443453E-9 -6.428261098947005E-11
i -2.638966876390885E-13 7.365183085158103E-13 -5.416685136575531E-12 8.468371548145111E-11 -6.428261098947005E-11 7.825038222853951E-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 16.70   n/a E2021B25  

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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