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268268 (2005 OJ18)
Classification: Main-belt Asteroid          SPK-ID: 2268268
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197092660857249 4.6899e-08  
a 2.241856180574446 9.4482e-09 au
q 1.800002780685759 1.0633e-07 au
i 5.14535702028674 5.2467e-06 deg
node 171.3981850254587 5.2024e-05 deg
peri 133.4440711286974 5.42e-05 deg
M 164.6993859520893 1.3433e-05 deg
tp 2458439.581804040723
(2018-Nov-17.08180404)
4.4307e-05 TDB
period 1226.055272629133
3.36
7.7508e-06
2.122e-08
d
yr
n .2936246089689105 1.8562e-09 deg/d
Q 2.683709580463133 1.131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      8886 days (24.33 yr)  
   first obs. used      1995-08-22  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:14:00  

Additional Information
 Earth MOID = .78986 au 
 Jupiter MOID = 2.57281 au 
 T_jup = 3.603 
[ show covariance matrix ]

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 17.2   n/a MPO450150  

268268 (2005 OJ18)          Discovered 2005-Jul-30 by NEAT at Palomar
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2034-Jan-28 20:44 < 00:01 Eunom 0.0435402767685237 0.0435387182691627 0.0435418356721277 6.20649233632978 6.20649228438326 2463991.363824121 0.560847146100661 282.7899840262 49.6567935547097 -77.6042740049924 128151.31549463 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 22:14:01 2020-Nov-11 22:14
2144-Apr-01 20:12 00:05 David 0.0311736985371853 0.0311570789986349 0.0311903595114073 6.23463465808989 6.23463458036078 2504231.342005353 4.62912533763765 1977.03767185364 48.1932696618044 65.22921231029 87834.4529208776 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 22:14:01 2020-Nov-11 22:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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