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452500 (2004 RW9)
Classification: Inner Main-belt Asteroid          SPK-ID: 2452500
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052765997735307 7.7361e-08  
a 1.934860861841594 9.1457e-09 au
q 1.731165289272028 1.5424e-07 au
i 18.31967222066989 9.7956e-06 deg
node 280.2047010556141 1.6784e-05 deg
peri 75.66183755508372 5.2344e-05 deg
M 297.305345228967 4.7264e-05 deg
tp 2459171.698932029308
(2020-Nov-18.19893203)
0.00012958 TDB
period 983.0441806504157
2.69
6.97e-06
1.908e-08
d
yr
n .3662093800929798 2.5965e-09 deg/d
Q 2.13855643441116 1.0108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      7542 days (20.65 yr)  
   first obs. used      2000-01-15  
   last obs. used      2020-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:40:00  

Additional Information
 Earth MOID = .795911 au 
 Jupiter MOID = 3.20939 au 
 T_jup = 3.841 
[ 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 17.8   n/a MPO357340  

452500 (2004 RW9)          Discovered 2004-Sep-07 by LINEAR at Socorro
Reference: Last Updated: 2016-01-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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