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85533 (1997 WM22)
Classification: Main-belt Asteroid          SPK-ID: 2085533
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142103090828762 4.3204e-08  
a 2.408564551092728 1.1314e-08 au
q 2.066300083921862 1.0505e-07 au
i 5.578401987589788 4.254e-06 deg
node 95.64078340644878 4.7526e-05 deg
peri 247.7227776802671 5.1718e-05 deg
M 72.03425593707972 1.64e-05 deg
tp 2458727.305195446358
(2019-Aug-31.80519545)
6.2646e-05 TDB
period 1365.324432936708
3.74
9.6201e-06
2.634e-08
d
yr
n .2636735938473376 1.8579e-09 deg/d
Q 2.750829018263595 1.2922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      8049 days (22.04 yr)  
   first obs. used      1997-11-28  
   last obs. used      2019-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56577  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:37:42  

Additional Information
 Earth MOID = 1.06584 au 
 Jupiter MOID = 2.6362 au 
 T_jup = 3.501 
[ 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 15.8   n/a MPO348040  

85533 (1997 WM22)          Discovered 1997-Nov-28 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 WM22 = 2001 XF172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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