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74358 (1998 WH13)
Classification: Main-belt Asteroid          SPK-ID: 2074358
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 .2405202990047937 4.4611e-08  
a 2.772077056594529 1.5686e-08 au
q 2.105336254078085 1.2155e-07 au
i 8.019698236427747 4.6683e-06 deg
node 263.6069810190749 3.7734e-05 deg
peri 207.6662869861163 3.9034e-05 deg
M 206.0532296971534 1.2746e-05 deg
tp 2459721.399054297314
(2022-May-21.89905430)
6.3058e-05 TDB
period 1685.801261283324
4.62
1.4309e-05
3.918e-08
d
yr
n .2135483038646847 1.8125e-09 deg/d
Q 3.438817859110974 1.9459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1998-10-26  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:14:50  

Additional Information
 Earth MOID = 1.12568 au 
 Jupiter MOID = 1.73576 au 
 T_jup = 3.280 
[ 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 14.8   n/a MPO299446  

74358 (1998 WH13)          Discovered 1998-Nov-21 by LINEAR at Socorro
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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