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185566 (2008 AY43)
Classification: Main-belt Asteroid          SPK-ID: 2185566
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09913522312219154 7.1615e-08  
a 2.137439969386834 1.0498e-08 au
q 1.92554438111138 1.534e-07 au
i 3.902365843816667 5.1008e-06 deg
node 318.7088118888469 0.00012387 deg
peri 66.26316038221107 0.00013033 deg
M 83.69551483634255 3.6467e-05 deg
tp 2458735.137835653408
(2019-Sep-08.63783565)
0.00011632 TDB
period 1141.403805826061
3.12
8.4092e-06
2.302e-08
d
yr
n .3154010860682731 2.3237e-09 deg/d
Q 2.349335557662288 1.1539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1997-10-08  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55476  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:06:42  

Additional Information
 Earth MOID = .932673 au 
 Jupiter MOID = 3.01167 au 
 T_jup = 3.707 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457486.5 (2016-Apr-08.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09949700671818208 7.1648e-08  
q 1.924723002210223 1.5345e-07 au
tp 2457592.369451558906
(2016-Jul-22.86945156)
0.00011898 TDB
node 318.7997953679151 0.00012387 deg
peri 65.75969466371345 0.00013028 deg
i 3.902692100697245 5.0963e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1997-10-08  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55476  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:06:42  

Additional Information
 Jupiter MOID = 3.01167 au 
 T_jup = 3.707 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.133428528323098E-15 -1.09739402631871E-14 2.656759416823452E-12 8.955679842264738E-14 5.773771984754337E-13 -1.363510410627686E-14
q -1.09739402631871E-14 2.354768770011053E-14 -6.144842843447513E-12 -1.832478359078436E-13 -1.405763973600163E-12 2.951405688955416E-14
tp 2.656759416823452E-12 -6.144842843447513E-12 1.4155477107563E-8 -5.468178792939135E-11 4.85247666729256E-9 -1.57705273865542E-11
node 8.955679842264738E-14 -1.832478359078436E-13 -5.468178792939135E-11 1.534335041739281E-8 -1.533069815668661E-8 -2.513664723030902E-10
peri 5.773771984754337E-13 -1.405763973600163E-12 4.85247666729256E-9 -1.533069815668661E-8 1.697288694032991E-8 2.459465422349027E-10
i -1.363510410627686E-14 2.951405688955416E-14 -1.57705273865542E-11 -2.513664723030902E-10 2.459465422349027E-10 2.597207314396022E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO502995  

185566 (2008 AY43)          Discovered 2008-Jan-10 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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