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226760 (2004 RK74)
Classification: Main-belt Asteroid          SPK-ID: 2226760
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322266147109945 5.0935e-08  
a 2.676680627689222 1.8431e-08 au
q 2.322752209627376 1.3627e-07 au
i 11.39404820049223 5.3302e-06 deg
node 355.7241265639786 2.268e-05 deg
peri 226.3820669366222 2.8527e-05 deg
M 333.4741371782399 1.7794e-05 deg
tp 2459118.358328925308
(2020-Sep-25.85832893)
7.9318e-05 TDB
period 1599.533206448805
4.38
1.6521e-05
4.523e-08
d
yr
n .2250656619997606 2.3247e-09 deg/d
Q 3.030609045751068 2.0869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      8084 days (22.13 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:29:38  

Additional Information
 Earth MOID = 1.33219 au 
 Jupiter MOID = 1.99962 au 
 T_jup = 3.338 
[ 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 MPO427315  
diameter diameter 4.741 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226760 (2004 RK74)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 RK74 = 2007 DT82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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