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74357 (1998 WZ12)
Classification: Main-belt Asteroid          SPK-ID: 2074357
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2341250210124305 4.2297e-08  
a 2.77645912852592 1.4986e-08 au
q 2.126420576719634 1.2336e-07 au
i 8.263305732470076 4.5791e-06 deg
node 32.66689962435374 2.5134e-05 deg
peri 303.9128052655591 2.6581e-05 deg
M 288.7297566460447 8.5557e-06 deg
tp 2459335.034640505994
(2021-Apr-30.53464051)
4.1298e-05 TDB
period 1689.800187492612
4.63
1.3681e-05
3.746e-08
d
yr
n .213042940026052 1.7249e-09 deg/d
Q 3.426497680332206 1.8495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      7882 days (21.58 yr)  
   first obs. used      1998-11-18  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:49:38  

Additional Information
 Earth MOID = 1.1309 au 
 Jupiter MOID = 2.0254 au 
 T_jup = 3.280 
[ 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 14.6   n/a MPO436303  
diameter diameter 7.007 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74357 (1998 WZ12)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WZ12 = 2001 FO129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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