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JPL Small-Body Database Browser
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154829 (2004 RA9)
Classification: Main-belt Asteroid          SPK-ID: 2154829
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 .103116635339863 5.9809e-08  
a 2.8078036179041 2.0372e-08 au
q 2.518272356130735 1.6814e-07 au
i 4.278233969634142 7.0775e-06 deg
node 175.2291753966528 6.4877e-05 deg
peri 150.9083612214467 7.0161e-05 deg
M 149.9564348865786 2.62e-05 deg
tp 2458284.667970316902
(2018-Jun-15.16797032)
0.00012495 TDB
period 1718.495981054961
4.70
1.8703e-05
5.121e-08
d
yr
n .2094855059125602 2.2799e-09 deg/d
Q 3.097334879677465 2.2473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      8874 days (24.30 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:34:33  

Additional Information
 Earth MOID = 1.50772 au 
 Jupiter MOID = 2.20527 au 
 T_jup = 3.310 
[ 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 15.6   n/a MPO454006  

154829 (2004 RA9)          Discovered 2004-Sep-06 by Tucker, R. A. at Goodricke-Pigott
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2004 RA9 = 1995 UB83 = 1995 UM15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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