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10640 (1998 WU19)
Classification: Main-belt Asteroid          SPK-ID: 2010640
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144769458424981 1.2996e-08  
a 2.223543585265161 5.8106e-09 au
q 1.901642384641983 2.9179e-08 au
i 3.631782969915852 5.8772e-07 deg
node 164.782630712634 1.771e-05 deg
peri 285.9984765452866 1.7059e-05 deg
M 319.1383221826699 7.1104e-06 deg
tp 2459533.961345787134
(2021-Nov-15.46134579)
2.4226e-05 TDB
period 1211.063449342266
3.32
4.7471e-06
1.3e-08
d
yr
n .2972594046955324 1.1652e-09 deg/d
Q 2.545444785888339 6.6518e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2720  
   data-arc span      18984 days (51.98 yr)  
   first obs. used      1969-01-15  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46183  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:55:30  

Additional Information
 Earth MOID = .922081 au 
 Jupiter MOID = 2.63007 au 
 T_jup = 3.631 
[ 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 13.92   n/a E2021B10  
diameter diameter 3.969 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.282   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10640 (1998 WU19)          Discovered 1998-Nov-25 by LINEAR at Socorro
Reference: 19990504/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WU19 = 1941 UD = 1969 AB1 = 1976 GS1 = 1981 WA8 = 1981 WP8 = 1984 SU6 = 1993 KA3 = 1996 FY20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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