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136965 (1998 RA38)
Classification: Main-belt Asteroid          SPK-ID: 2136965
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109088275533325 4.2523e-08  
a 2.517097767921871 9.4916e-09 au
q 2.237929405644546 1.0655e-07 au
i 1.597993663005711 3.9337e-06 deg
node 286.4687877757082 0.00017025 deg
peri 107.3555570046348 0.00017255 deg
M 122.2936785896717 2.7705e-05 deg
tp 2458504.992694743914
(2019-Jan-21.49269474)
0.00011191 TDB
period 1458.641460044006
3.99
8.2505e-06
2.259e-08
d
yr
n .2468049961977216 1.396e-09 deg/d
Q 2.796266130199196 1.0544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      956  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1995-11-18  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55255  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:42:08  

Additional Information
 Earth MOID = 1.24478 au 
 Jupiter MOID = 2.59783 au 
 T_jup = 3.449 
[ 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 16.0   n/a MPO412867  

136965 (1998 RA38)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 RA38 = 2002 RU89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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