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JPL Small-Body Database Browser
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100654 (1997 WM12)
Classification: Main-belt Asteroid          SPK-ID: 2100654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223309676768808 5.7306e-08  
a 2.570810398144769 1.3962e-08 au
q 2.256320674425932 1.521e-07 au
i 2.650071395032235 4.1636e-06 deg
node 248.96816571389 0.00013545 deg
peri 67.98021546490281 0.0001367 deg
M 239.9689222936977 1.8711e-05 deg
tp 2459502.489581030158
(2021-Oct-14.98958103)
7.8925e-05 TDB
period 1505.578826952151
4.12
1.2265e-05
3.358e-08
d
yr
n .2391106952060248 1.9479e-09 deg/d
Q 2.885300121863606 1.567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      8119 days (22.23 yr)  
   first obs. used      1997-11-06  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:09:06  

Additional Information
 Earth MOID = 1.24446 au 
 Jupiter MOID = 2.37224 au 
 T_jup = 3.418 
[ 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 16.0   n/a MPO422319  

100654 (1997 WM12)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 WM12 = 2000 KG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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