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226780 (2004 RO144)
Classification: Main-belt Asteroid          SPK-ID: 2226780
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182955653517982 8.7526e-08  
a 2.712365076889899 2.6374e-08 au
q 2.216122551668156 2.2434e-07 au
i 12.92339753512885 6.9612e-06 deg
node 202.2051471098377 2.8476e-05 deg
peri 151.8641716277379 3.4831e-05 deg
M 176.9479773527806 2.6519e-05 deg
tp 2458198.519617945826
(2018-Mar-21.01961795)
0.00011228 TDB
period 1631.62609631811
4.47
2.3798e-05
6.516e-08
d
yr
n .2206387853273294 3.2181e-09 deg/d
Q 3.208607602111643 3.12e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      8977 days (24.58 yr)  
   first obs. used      1995-09-25  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:30:01  

Additional Information
 Earth MOID = 1.22127 au 
 Jupiter MOID = 2.29473 au 
 T_jup = 3.302 
[ 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 15.9   n/a MPO413101  

226780 (2004 RO144)          Discovered 2004-Sep-08 by Uppsala-DLR Asteroid Survey at Kvistaberg
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2004 RO144 = 1995 SG84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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