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216561 (2001 WT97)
Classification: Main-belt Asteroid          SPK-ID: 2216561
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09258147305894082 4.8183e-08  
a 2.709259294782363 1.7896e-08 au
q 2.458432078372785 1.356e-07 au
i 1.308370859321785 3.9597e-06 deg
node 271.6254537238686 0.00021559 deg
peri 92.00047603819195 0.00021683 deg
M 149.3307736078814 2.5266e-05 deg
tp 2458524.851061075055
(2019-Feb-10.35106107)
0.0001109 TDB
period 1628.824468904665
4.46
1.6139e-05
4.419e-08
d
yr
n .2210182907198645 2.1899e-09 deg/d
Q 2.960086511191942 1.9552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      7116 days (19.48 yr)  
   first obs. used      2001-10-21  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59335  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:41:50  

Additional Information
 Earth MOID = 1.45474 au 
 Jupiter MOID = 2.46411 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.24   n/a MPCxxxxx  

216561 (2001 WT97)          Discovered 2001-Nov-19 by LONEOS at Anderson Mesa
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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