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100662 (1997 WM28)
Classification: Main-belt Asteroid          SPK-ID: 2100662
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836946544116922 4.4734e-08  
a 2.789227903305952 1.687e-08 au
q 2.276861647532717 1.2605e-07 au
i 2.403802203817234 5.6452e-06 deg
node 150.5583910358731 0.00011443 deg
peri 317.5840124367713 0.00011535 deg
M 263.9321322624838 1.5743e-05 deg
tp 2459454.546235622557
(2021-Aug-28.04623562)
7.661e-05 TDB
period 1701.470519474098
4.66
1.5437e-05
4.226e-08
d
yr
n .2115816853008252 1.9196e-09 deg/d
Q 3.301594159079188 1.9969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      478  
   data-arc span      8278 days (22.66 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:03:37  

Additional Information
 Earth MOID = 1.29431 au 
 Jupiter MOID = 1.83295 au 
 T_jup = 3.304 
[ 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 MPO449611  

100662 (1997 WM28)          Discovered 1997-Nov-29 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 WM28 = 2001 SD351 = 2003 BD81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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