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79449 (1997 WD4)
Classification: Main-belt Asteroid          SPK-ID: 2079449
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07266449374848151 6.3595e-08  
a 2.681993460309997 1.8854e-08 au
q 2.487107763279833 1.7097e-07 au
i 2.524837806765041 5.7304e-06 deg
node 41.05358988038431 0.00013719 deg
peri 280.3867521824491 0.00014214 deg
M 208.9619170816929 3.9211e-05 deg
tp 2460069.583528157234
(2023-May-05.08352816)
0.00017764 TDB
period 1604.297839688973
4.39
1.6917e-05
4.632e-08
d
yr
n .2243972354097251 2.3662e-09 deg/d
Q 2.876879157340161 2.0224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      9513 days (26.05 yr)  
   first obs. used      1995-03-29  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:08:38  

Additional Information
 Earth MOID = 1.47526 au 
 Jupiter MOID = 2.32912 au 
 T_jup = 3.371 
[ 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 16.69   n/a MPCxxxxx  

79449 (1997 WD4)          Discovered 1997-Nov-20 by Spacewatch at Kitt Peak
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1997 WD4 = 1995 FR19 = 2001 RU116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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