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JPL Small-Body Database Browser
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154895 (2004 RO223)
Classification: Main-belt Asteroid          SPK-ID: 2154895
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .07687276435805926 5.1617e-08  
a 3.011778963699466 2.7203e-08 au
q 2.780255189124437 1.6588e-07 au
i 3.014061571946803 5.72e-06 deg
node 148.816165847775 8.154e-05 deg
peri 212.2254748365338 8.7337e-05 deg
M 15.57170188094193 3.1166e-05 deg
tp 2458917.921564614586
(2020-Mar-09.42156461)
0.00016516 TDB
period 1909.11930924732
5.23
2.5865e-05
7.081e-08
d
yr
n .1885686233732201 2.5548e-09 deg/d
Q 3.243302738274495 2.9294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-11-04  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57798  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:00:54  

Additional Information
 Earth MOID = 1.77741 au 
 Jupiter MOID = 2.1515 au 
 T_jup = 3.243 
[ 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 15.4   n/a MPO449833  

154895 (2004 RO223)          Discovered 2004-Sep-07 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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