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226549 (2003 UA304)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226549
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1647936151202944 7.1643e-08  
a 3.207955239589959 3.9462e-08 au
q 2.679304698513839 2.189e-07 au
i 4.621262603501741 9.7577e-06 deg
node 336.3189344454481 6.4475e-05 deg
peri 320.4626831321855 6.9919e-05 deg
M 36.45813751160651 2.8396e-05 deg
tp 2458787.963827753136
(2019-Oct-31.46382775)
0.00016398 TDB
period 2098.654161488996
5.75
3.8724e-05
1.06e-07
d
yr
n .1715385062513491 3.1652e-09 deg/d
Q 3.736605780666079 4.5965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      6209 days (17.00 yr)  
   first obs. used      2003-10-17  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55485  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:32:04  

Additional Information
 Earth MOID = 1.6656 au 
 Jupiter MOID = 1.50593 au 
 T_jup = 3.166 
[ 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 15.5   n/a MPO437074  
diameter diameter 4.896 km 1.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226549 (2003 UA304)          Discovered 2003-Oct-17 by Spacewatch at Kitt Peak
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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