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79843 (1998 WU42)
Classification: Main-belt Asteroid          SPK-ID: 2079843
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1652604305401295 5.0094e-08  
a 2.629664620365401 1.1131e-08 au
q 2.195085113027669 1.3059e-07 au
i 7.220728457180935 3.6405e-06 deg
node 276.342843764804 4.1012e-05 deg
peri 81.81587896609842 4.258e-05 deg
M 66.14707385508508 1.0942e-05 deg
tp 2458714.308251318218
(2019-Aug-18.80825132)
4.7239e-05 TDB
period 1557.575014597883
4.26
9.8896e-06
2.708e-08
d
yr
n .2311285149196751 1.4675e-09 deg/d
Q 3.064244127703134 1.2971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      9686 days (26.52 yr)  
   first obs. used      1993-07-23  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48269  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:48:03  

Additional Information
 Earth MOID = 1.2052 au 
 Jupiter MOID = 2.43856 au 
 T_jup = 3.370 
[ 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 15.1   n/a MPO449501  
diameter diameter 2.658 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.274   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79843 (1998 WU42)          Discovered 1998-Nov-16 by NEAT at Haleakala
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 WU42 = 2002 TA120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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