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216889 (2008 YW17)
Classification: Main-belt Asteroid          SPK-ID: 2216889
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09417960894601159 7.0455e-08  
a 2.90502038894167 2.6243e-08 au
q 2.631426704730953 2.1028e-07 au
i 2.406120191790037 5.4657e-06 deg
node 129.560675758093 0.00016563 deg
peri 272.9106663421506 0.00016856 deg
M 214.0293724040613 3.257e-05 deg
tp 2459933.805898968641
(2022-Dec-20.30589897)
0.00016818 TDB
period 1808.515370362466
4.95
2.4506e-05
6.709e-08
d
yr
n .1990583026827403 2.6973e-09 deg/d
Q 3.178614073152387 2.8714e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      9630 days (26.37 yr)  
   first obs. used      1994-01-07  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54334  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:40  

Additional Information
 Earth MOID = 1.64032 au 
 Jupiter MOID = 2.17362 au 
 T_jup = 3.278 
[ 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 16.85   n/a E2021B55  

216889 (2008 YW17)          Discovered 2008-Dec-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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