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216855 (2007 YW20)
Classification: Main-belt Asteroid          SPK-ID: 2216855
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224178101281276 6.9407e-08  
a 2.790328801179296 3.3817e-08 au
q 2.448742859801483 1.8772e-07 au
i 25.64649552654864 7.4022e-06 deg
node 87.65529710499823 1.7104e-05 deg
peri 102.4003041909126 3.5824e-05 deg
M 208.7906654976171 3.4322e-05 deg
tp 2459915.584889141777
(2022-Dec-02.08488914)
0.00016989 TDB
period 1702.477964989541
4.66
3.0949e-05
8.473e-08
d
yr
n .2114564813191057 3.844e-09 deg/d
Q 3.131914742557109 3.7956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6518 days (17.85 yr)  
   first obs. used      2002-12-10  
   last obs. used      2020-10-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:33  

Additional Information
 Earth MOID = 1.55957 au 
 Jupiter MOID = 2.17411 au 
 T_jup = 3.175 
[ 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 15.9   n/a MPO433419  

216855 (2007 YW20)          Discovered 2007-Dec-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 2007 YW20 = 2004 FC147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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