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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1649233413813715 2.4011e-08  
a 2.429646368780876 7.0626e-09 au
q 2.028940971266418 5.8206e-08 au
i 1.368059601545127 3.7841e-06 deg
node 229.282071324306 0.00016462 deg
peri 37.32121053819278 0.00016532 deg
M 54.76353002816535 1.5443e-05 deg
tp 2458790.072758597988
(2019-Nov-02.57275860)
5.925e-05 TDB
period 1383.289332622704
3.79
6.0315e-06
1.651e-08
d
yr
n .2602492417963228 1.1348e-09 deg/d
Q 2.830351766295334 8.2274e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1973  
   data-arc span      10953 days (29.99 yr)  
   first obs. used      1990-11-19  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49776  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:30:31  

Additional Information
 Earth MOID = 1.01323 au 
 Jupiter MOID = 2.25107 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456951.5 (2014-Oct-21.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1642965708552233 2.4078e-08  
q 2.031917914861103 5.83e-08 au
tp 2457406.109470556747
(2016-Jan-18.60947056)
5.9347e-05 TDB
node 229.3827724865223 0.00016469 deg
peri 37.11808832443606 0.0001654 deg
i 1.367193533317941 3.7819e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1973  
   data-arc span      10953 days (29.99 yr)  
   first obs. used      1990-11-19  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49776  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:30:31  

Additional Information
 Jupiter MOID = 2.25107 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.797293755275004E-16 -1.396586106863914E-15 -1.904036164780171E-13 -1.152054482717217E-15 -4.888380435813964E-14 7.778146770007164E-17
q -1.396586106863914E-15 3.398866358121931E-15 4.612672587978253E-13 3.977901316020318E-15 1.146050543548969E-13 -2.295326294076497E-16
tp -1.904036164780171E-13 4.612672587978253E-13 3.522059937367882E-9 7.202101586536827E-13 9.2381051813817E-10 -2.476051751199201E-13
node -1.152054482717217E-15 3.977901316020318E-15 7.202101586536827E-13 2.712394810812415E-8 -2.711604502552326E-8 -2.998797007737756E-10
peri -4.888380435813964E-14 1.146050543548969E-13 9.2381051813817E-10 -2.711604502552326E-8 2.735704688905517E-8 2.997426353856344E-10
i 7.778146770007164E-17 -2.295326294076497E-16 -2.476051751199201E-13 -2.998797007737756E-10 2.997426353856344E-10 1.430253215752165E-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

[ hide close-approach data ]
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 25 CATAB v2.0f-lin.ifort 2020-Dec-18 03:30:36 2020-Dec-18 03:30

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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