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74363 (1998 WB23)
Classification: Main-belt Asteroid          SPK-ID: 2074363
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2195745560178249 3.6093e-08  
a 2.639038200713843 8.7392e-09 au
q 2.059572559478021 9.5349e-08 au
i 2.90074957416258 3.8261e-06 deg
node 236.2081079848926 7.8062e-05 deg
peri 95.74334074441882 7.8586e-05 deg
M 70.90034394489321 7.9544e-06 deg
tp 2458692.101126319517
(2019-Jul-27.60112632)
3.4554e-05 TDB
period 1565.910520987967
4.29
7.7783e-06
2.13e-08
d
yr
n .2298981935269636 1.142e-09 deg/d
Q 3.218503841949664 1.0658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      7801 days (21.36 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52406  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:14:50  

Additional Information
 Earth MOID = 1.0516 au 
 Jupiter MOID = 2.1672 au 
 T_jup = 3.359 
[ 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 15.2   n/a MPO502606  
diameter diameter 4.470 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74363 (1998 WB23)          Discovered 1998-Nov-18 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WB23 = 2001 HZ64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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