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101489 (1998 WW43)
Classification: Main-belt Asteroid          SPK-ID: 2101489
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09504680512313564 4.1062e-08  
a 2.653239452674983 1.3969e-08 au
q 2.401057519471569 1.1446e-07 au
i 2.309685279398606 4.1868e-06 deg
node 239.9315698049244 0.00010978 deg
peri 176.2746606353974 0.00011268 deg
M 357.1100717865162 2.5377e-05 deg
tp 2459013.172072551413
(2020-Jun-12.67207255)
0.00011131 TDB
period 1578.56727970736
4.32
1.2467e-05
3.413e-08
d
yr
n .2280548980254665 1.8011e-09 deg/d
Q 2.905421385878397 1.5297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      8014 days (21.94 yr)  
   first obs. used      1998-11-20  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:19  

Additional Information
 Earth MOID = 1.41279 au 
 Jupiter MOID = 2.37778 au 
 T_jup = 3.382 
[ 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 15.5   n/a MPO359464  
diameter diameter 3.195 km 1.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.131   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101489 (1998 WW43)          Discovered 1998-Nov-20 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 WW43 = 2002 TN22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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