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90962 (1997 WE19)
Classification: Main-belt Asteroid          SPK-ID: 2090962
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09256584454504073 3.8588e-08  
a 2.392796799424698 1.051e-08 au
q 2.171305542861281 9.1599e-08 au
i 6.403127437532688 6.3981e-06 deg
node 5.093091091347702 3.3207e-05 deg
peri 282.5235822039977 4.8542e-05 deg
M 139.7769643275701 3.5148e-05 deg
tp 2458475.583458164772
(2018-Dec-23.08345816)
0.00013173 TDB
period 1351.939183754394
3.70
8.9075e-06
2.439e-08
d
yr
n .2662841674580838 1.7545e-09 deg/d
Q 2.614288055988116 1.1483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      9630 days (26.37 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61845  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:21:11  

Additional Information
 Earth MOID = 1.16622 au 
 Jupiter MOID = 2.52466 au 
 T_jup = 3.517 
[ 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 15.9   n/a MPO439640  

90962 (1997 WE19)          Discovered 1997-Nov-24 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 WE19 = 2001 YY8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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