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74364 (1998 WZ26)
Classification: Main-belt Asteroid          SPK-ID: 2074364
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1632505769734605 3.5883e-08  
a 3.097983824357037 1.6257e-08 au
q 2.592236177576303 1.1259e-07 au
i 2.881465198346087 3.8244e-06 deg
node 111.7340402540083 9.2665e-05 deg
peri 15.90534803252722 9.4149e-05 deg
M 358.5076493285848 1.4807e-05 deg
tp 2459208.756301237807
(2020-Dec-25.25630124)
8.1916e-05 TDB
period 1991.668917059456
5.45
1.5678e-05
4.292e-08
d
yr
n .1807529338417913 1.4228e-09 deg/d
Q 3.603731471137771 1.8911e-08 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      10787 days (29.53 yr)  
   first obs. used      1991-09-08  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54673  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:19:16  

Additional Information
 Earth MOID = 1.60747 au 
 Jupiter MOID = 1.45792 au 
 T_jup = 3.200 
[ 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 14.82   n/a MPCxxxxx  
diameter diameter 6.310 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74364 (1998 WZ26)          Discovered 1998-Nov-16 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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