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JPL Small-Body Database Browser
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27812 (1993 OJ8)
Classification: Main-belt Asteroid          SPK-ID: 2027812
[ 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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1649233701184372 3.0695e-08  
a 2.429646367558056 8.8437e-09 au
q 2.028940900424362 7.7017e-08 au
i 1.368060247810607 3.8813e-06 deg
node 229.2820337662208 0.00019086 deg
peri 37.32123625047399 0.00019152 deg
M 54.76353852748442 1.5939e-05 deg
tp 2458790.072726098466
(2019-Nov-02.57272610)		 6.1234e-05 TDB
period 1383.289331578407
3.79		 7.5526e-06
2.068e-08		 d
yr
n .2602492419927946 1.4209e-09 deg/d
Q 2.83035183469175 1.0302e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1511  
   data-arc span      10400 days (28.47 yr)  
   first obs. used      1990-11-19  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52936  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:29:00  

Additional Information
 Earth MOID = 1.01323 au 
 Jupiter MOID = 2.25107 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456306.5 (2013-Jan-14.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1657542465215421 3.0841e-08  
q 2.026240457833477 7.7356e-08 au
tp 2456020.927971997539
(2012-Apr-03.42797200)		 6.2255e-05 TDB
node 229.5055562785926 0.00019054 deg
peri 36.71074884366804 0.00019119 deg
i 1.369380875880115 3.8827e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1511  
   data-arc span      10400 days (28.47 yr)  
   first obs. used      1990-11-19  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52936  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:29:00  

Additional Information
 Jupiter MOID = 2.25107 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.511684625267508E-16 -2.375992267829643E-15 1.594574087257471E-13 -2.631809076781489E-15 6.782176919808904E-14 -1.982060583027802E-18
q -2.375992267829643E-15 5.983963530919909E-15 -4.92762920240921E-13 6.358118488344439E-15 -1.905538964390655E-13 3.318350610590043E-17
tp 1.594574087257471E-13 -4.92762920240921E-13 3.875717087684452E-9 2.269751848550953E-11 1.006525927899582E-9 1.062011133800325E-13
node -2.631809076781489E-15 6.358118488344439E-15 2.269751848550953E-11 3.630374747379607E-8 -3.628691927631933E-8 -2.609522967389934E-10
peri 6.782176919808904E-14 -1.905538964390655E-13 1.006525927899582E-9 -3.628691927631933E-8 3.655244614927974E-8 2.609118662338229E-10
i -1.982060583027802E-18 3.318350610590043E-17 1.062011133800325E-13 -2.609522967389934E-10 2.609118662338229E-10 1.507548929600627E-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 14.6   n/a MPO474129  

27812 (1993 OJ8)          Discovered 1993-Jul-20 by Elst, E. W. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

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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
2191-Feb-24 09:50 < 00:01 Amphi 0.0263952403200334 0.0263919933548271 0.0263985056669118 4.91522167611559 4.91522163180532 2521360.909603672 0.877994954847855 1134.72539739866 34.0823687848474 -81.9582708747155 114676.896860036 T 21 CATAB v2.0e-lin.ifort 2019-May-30 03:29:08 2019-May-30 03:29

Alternate Designations
 1993 OJ8 = 2000 EV38 = 2001 RE144 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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