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129652 (1998 OA4)
Classification: Main-belt Asteroid          SPK-ID: 2129652
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04318516655808694 3.9868e-08  
a 2.689643704698858 1.3966e-08 au
q 2.573490993329528 1.121e-07 au
i 2.623380503129229 3.8713e-06 deg
node 215.3335437928789 8.9141e-05 deg
peri 93.55724530173494 0.00010357 deg
M 347.148861579298 5.053e-05 deg
tp 2459058.014805731623
(2020-Jul-27.51480573)
0.000226 TDB
period 1611.166994359814
4.41
1.2549e-05
3.436e-08
d
yr
n .2234405255695071 1.7404e-09 deg/d
Q 2.805796416068188 1.4569e-08 au
  Orbit Determination Parameters
   # obs. used (total)      545  
   data-arc span      10918 days (29.89 yr)  
   first obs. used      1990-11-19  
   last obs. used      2020-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:47:28  

Additional Information
 Earth MOID = 1.56044 au 
 Jupiter MOID = 2.29247 au 
 T_jup = 3.370 
[ 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 15.8   n/a MPO396106  

129652 (1998 OA4)          Discovered 1998-Jul-24 by ODAS at Caussols
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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Alternate Designations
 1998 OA4 = 1994 RW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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