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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0431851665155983 3.9906e-08  
a 2.689643704562326 1.4346e-08 au
q 2.573490993313171 1.1237e-07 au
i 2.623380110760002 4.229e-06 deg
node 215.3335452075772 8.9185e-05 deg
peri 93.55724314604461 0.00010445 deg
M 347.1488623807062 5.2555e-05 deg
tp 2459058.014802140570
(2020-Jul-27.51480214)
0.0002351 TDB
period 1611.166994237135
4.41
1.2891e-05
3.529e-08
d
yr
n .2234405255865206 1.7877e-09 deg/d
Q 2.80579641581148 1.4966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      10845 days (29.69 yr)  
   first obs. used      1990-11-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:41:27  

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

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