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15931 (1997 WK45)
Classification: Main-belt Asteroid          SPK-ID: 2015931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1837345117407424 2.9543e-08  
a 3.176229477364684 1.4797e-08 au
q 2.59264650516453 9.484e-08 au
i 2.076317848216601 3.5337e-06 deg
node 71.3587922869277 0.00010373 deg
peri 14.78730696718987 0.00010438 deg
M 9.466660948806101 1.0214e-05 deg
tp 2459146.129846760022
(2020-Oct-23.62984676)
5.8632e-05 TDB
period 2067.598625559805
5.66
1.4448e-05
3.956e-08
d
yr
n .1741150315876852 1.2167e-09 deg/d
Q 3.759812449564838 1.7516e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2095  
   data-arc span      25308 days (69.29 yr)  
   first obs. used      1951-11-29  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45003  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:12:38  

Additional Information
 Earth MOID = 1.60867 au 
 Jupiter MOID = 1.47159 au 
 T_jup = 3.173 
[ 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 13.14   n/a E2021B10  
diameter diameter 10.466 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15931 (1997 WK45)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WK45 = 1951 WE = 2000 JH62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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