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129471 (1993 OL8)
Classification: Main-belt Asteroid          SPK-ID: 2129471
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268876700273453 3.7929e-08  
a 2.755881810909496 1.5976e-08 au
q 2.130606207961499 1.1002e-07 au
i 12.19475278745696 3.9787e-06 deg
node 117.2581931132181 2.303e-05 deg
peri 175.4493338949982 2.5268e-05 deg
M 313.2709319711219 1.1081e-05 deg
tp 2459217.407180039715
(2021-Jan-02.90718004)
5.2037e-05 TDB
period 1671.049479652379
4.58
1.4531e-05
3.978e-08
d
yr
n .2154334772151027 1.8733e-09 deg/d
Q 3.381157413857492 1.9601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      9939 days (27.21 yr)  
   first obs. used      1993-06-20  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:48:55  

Additional Information
 Earth MOID = 1.11473 au 
 Jupiter MOID = 1.84149 au 
 T_jup = 3.274 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457501.5 (2016-Apr-23.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2258311924838826 3.7935e-08  
q 2.134307971633847 1.1e-07 au
tp 2457545.307764538650
(2016-Jun-05.80776454)
4.9371e-05 TDB
node 117.2720687638967 2.3035e-05 deg
peri 175.3810891280523 2.5294e-05 deg
i 12.190835680275 3.9774e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      9939 days (27.21 yr)  
   first obs. used      1993-06-20  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:48:55  

Additional Information
 Jupiter MOID = 1.84149 au 
 T_jup = 3.274 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.439083824643362E-15 -4.150351987370632E-15 -1.613042136214956E-13 2.137313106755435E-15 9.89300772799702E-15 -1.985755074981204E-15
q -4.150351987370632E-15 1.209988624944601E-14 4.810354903588845E-13 -8.452402903948911E-15 -2.515606917160982E-14 6.699967871205066E-15
tp -1.613042136214956E-13 4.810354903588845E-13 2.437481359156984E-9 4.822641433681089E-13 5.450471141164364E-10 6.688236322144957E-12
node 2.137313106755435E-15 -8.452402903948911E-15 4.822641433681089E-13 5.306181448405459E-10 -5.184059772510811E-10 -4.981963724902336E-12
peri 9.89300772799702E-15 -2.515606917160982E-14 5.450471141164364E-10 -5.184059772510811E-10 6.397975966587172E-10 6.246667205344039E-12
i -1.985755074981204E-15 6.699967871205066E-15 6.688236322144957E-12 -4.981963724902336E-12 6.246667205344039E-12 1.581961910740361E-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 15.4   n/a MPO432774  

129471 (1993 OL8)          Discovered 1993-Jul-20 by Elst, E. W. at La Silla
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1993 OL8 = 2002 LZ26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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