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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183829470061453 4.1233e-08  
a 2.789374619580244 1.5133e-08 au
q 2.27660536145994 1.1873e-07 au
i 2.403804359114131 5.1276e-06 deg
node 150.5586379059465 0.00011094 deg
peri 317.5779412457563 0.0001119 deg
M 306.2682674869444 1.5284e-05 deg
tp 2459454.472700942950
(2021-Aug-27.97270094)
7.3254e-05 TDB
period 1701.604769904756
4.66
1.3848e-05
3.791e-08
d
yr
n .2115649922749983 1.7217e-09 deg/d
Q 3.302143877700547 1.7915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      8445 days (23.12 yr)  
   first obs. used      1997-11-29  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57837  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:53  

Additional Information
 Earth MOID = 1.29392 au 
 Jupiter MOID = 1.83223 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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