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226740 (2004 RR4)
Classification: Main-belt Asteroid          SPK-ID: 2226740
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04276434111076107 4.8259e-08  
a 2.711477146218045 2.4464e-08 au
q 2.595522612623144 1.3307e-07 au
i 7.354258576158485 5.0957e-06 deg
node 90.54281929338642 3.933e-05 deg
peri 327.3093476378745 7.311e-05 deg
M 125.0199537420396 6.2055e-05 deg
tp 2458434.150942042560
(2018-Nov-11.65094204)
0.00027969 TDB
period 1630.824958433168
4.46
2.2071e-05
6.043e-08
d
yr
n .2207471734709492 2.9874e-09 deg/d
Q 2.827431679812946 2.551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      465  
   data-arc span      6612 days (18.10 yr)  
   first obs. used      2002-03-11  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:29:14  

Additional Information
 Earth MOID = 1.61175 au 
 Jupiter MOID = 2.33718 au 
 T_jup = 3.350 
[ 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 16.0   n/a MPO433485  

226740 (2004 RR4)          Discovered 2004-Sep-04 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 RR4 = 2006 AQ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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