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447286 (2005 WA2)
Classification: Main-belt Asteroid          SPK-ID: 2447286
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 .1096725830254629 1.2064e-07  
a 3.012661591030663 4.5248e-08 au
q 2.682255212560729 3.7102e-07 au
i 14.67012089123693 1.2535e-05 deg
node 67.53835384097707 3.9441e-05 deg
peri 340.8501079678114 6.9356e-05 deg
M 293.2418306044428 5.4828e-05 deg
tp 2459354.681498602971
(2021-May-20.18149860)
0.00029356 TDB
period 1909.958596101875
5.23
4.303e-05
1.178e-07
d
yr
n .1884857612802398 4.2464e-09 deg/d
Q 3.343067969500596 5.0211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      4550 days (12.46 yr)  
   first obs. used      2005-11-05  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58148  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:04:58  

Additional Information
 Earth MOID = 1.69764 au 
 Jupiter MOID = 2.0222 au 
 T_jup = 3.190 
[ 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 16.5   n/a MPO446774  
diameter diameter 3.003 km 0.361 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.049   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

447286 (2005 WA2)          Discovered 2005-Nov-22 by Young, J. W. at Wrightwood
Reference: Last Updated: 2015-10-28

Alternate Designations
 2005 WA2 = 2010 PA53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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