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216497 (2000 AY221)
Classification: Main-belt Asteroid          SPK-ID: 2216497
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744600170303135 5.4311e-08  
a 2.572213382550623 1.8293e-08 au
q 2.123464992025241 1.4714e-07 au
i 6.247989062264057 5.5604e-06 deg
node 310.91138730 4.5756e-05 deg
peri 275.2144741276397 4.9088e-05 deg
M 295.0784639307734 1.8917e-05 deg
tp 2459472.234764168821
(2021-Sep-14.73476417)
8.0143e-05 TDB
period 1506.811468485035
4.13
1.6075e-05
4.401e-08
d
yr
n .2389150915886962 2.5487e-09 deg/d
Q 3.020961773076005 2.1485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7785 days (21.31 yr)  
   first obs. used      2000-01-05  
   last obs. used      2021-04-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:41:43  

Additional Information
 Earth MOID = 1.124 au 
 Jupiter MOID = 2.02313 au 
 T_jup = 3.399 
[ 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 15.99   n/a MPCxxxxx  

216497 (2000 AY221)          Discovered 2000-Jan-08 by Spacewatch at Kitt Peak
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

Alternate Designations
 2000 AY221 = 2000 AD236 = 2006 US229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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