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523918 (1997 WF13)
Classification: Main-belt Asteroid          SPK-ID: 2523918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842537757626415 1.0054e-07  
a 3.072399300253708 4.6803e-08 au
q 2.506298128531465 3.0042e-07 au
i 9.601904082550446 1.4083e-05 deg
node 223.5215461747203 9.0091e-05 deg
peri 235.609344270709 0.00012538 deg
M 35.07879634102793 7.7005e-05 deg
tp 2458808.828696931071
(2019-Nov-21.32869693)
0.00041846 TDB
period 1967.047798162636
5.39
4.4948e-05
1.231e-07
d
yr
n .1830153798683823 4.182e-09 deg/d
Q 3.638500471975952 5.5427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1997-11-23  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 18:43:49  

Additional Information
 Earth MOID = 1.53782 au 
 Jupiter MOID = 1.68083 au 
 T_jup = 3.183 
[ 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 16.5   n/a MPO429599  
diameter diameter 3.499 km 0.527 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

523918 (1997 WF13)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

[ show close-approach data ]
Alternate Designations
 1997 WF13 = 2010 AD118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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