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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09524498168185591 3.2303e-08  
a 2.653802230257785 1.1419e-08 au
q 2.401040885449614 8.6857e-08 au
i 2.309396089817225 3.7411e-06 deg
node 239.9292891627592 0.00010147 deg
peri 176.2804931362082 0.00010438 deg
M 42.70281511041423 2.3663e-05 deg
tp 2459013.192458189613
(2020-Jun-12.69245819)
0.00010362 TDB
period 1579.069550271749
4.32
1.0192e-05
2.79e-08
d
yr
n .2279823583059062 1.4715e-09 deg/d
Q 2.906563575065956 1.2507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      953  
   data-arc span      8127 days (22.25 yr)  
   first obs. used      1998-11-20  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53657  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:01  

Additional Information
 Earth MOID = 1.412 au 
 Jupiter MOID = 2.37699 au 
 T_jup = 3.381 
[ 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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