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JPL Small-Body Database Browser
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226776 (2004 RO138)
Classification: Main-belt Asteroid          SPK-ID: 2226776
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148158518638495 9.4693e-08  
a 2.719613152934089 2.9389e-08 au
q 2.407358452039832 2.5065e-07 au
i 12.85718524227551 6.0035e-06 deg
node 282.6654795292045 4.4338e-05 deg
peri 56.14202011126329 5.6564e-05 deg
M 98.93930419708759 4.067e-05 deg
tp 2458150.279280945984
(2018-Jan-31.77928095)
0.00018148 TDB
period 1638.170595343813
4.49
2.6554e-05
7.27e-08
d
yr
n .2197573323701641 3.5621e-09 deg/d
Q 3.031867853828346 3.2763e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6452 days (17.66 yr)  
   first obs. used      2002-03-05  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52546  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:28:21  

Additional Information
 Earth MOID = 1.42122 au 
 Jupiter MOID = 2.31973 au 
 T_jup = 3.314 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO413101  

226776 (2004 RO138)          Discovered 2004-Sep-08 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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