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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1151650278426559 9.2029e-08  
a 2.718909190750753 2.8446e-08 au
q 2.405785938096289 2.4137e-07 au
i 12.8578666209314 5.8547e-06 deg
node 282.6664302856434 3.3912e-05 deg
peri 56.13385813428338 4.6493e-05 deg
M 186.8448949345164 3.9401e-05 deg
tp 2459788.131869551981
(2022-Jul-27.63186955)
0.00018762 TDB
period 1637.534584564986
4.48
2.5698e-05
7.036e-08
d
yr
n .2198426850909135 3.4501e-09 deg/d
Q 3.032032443405216 3.1722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      6544 days (17.92 yr)  
   first obs. used      2002-03-05  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:57:54  

Additional Information
 Earth MOID = 1.42054 au 
 Jupiter MOID = 2.32217 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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