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226418 (2003 RT4)
Classification: Main-belt Asteroid          SPK-ID: 2226418
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145722113509841 1.0067e-07  
a 3.14159606144132 2.9616e-08 au
q 2.781656453510446 3.2827e-07 au
i 10.52099843650585 1.0419e-05 deg
node 349.3841994340604 2.6036e-05 deg
peri 7.366509744757148 3.7295e-05 deg
M 7.165470744769114 2.7789e-05 deg
tp 2458960.017607713862
(2020-Apr-20.51760771)
0.00015669 TDB
period 2033.873522357012
5.57
2.876e-05
7.874e-08
d
yr
n .1770021567431606 2.5029e-09 deg/d
Q 3.501535669372194 3.3009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      5871 days (16.07 yr)  
   first obs. used      2003-09-03  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:52:23  

Additional Information
 Earth MOID = 1.77746 au 
 Jupiter MOID = 1.93609 au 
 T_jup = 3.174 
[ 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 MPO494241  
diameter diameter 4.824 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226418 (2003 RT4)          Discovered 2003-Sep-03 by NEAT at Haleakala
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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