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JPL Small-Body Database Browser
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185556 (2008 AY8)
Classification: Main-belt Asteroid          SPK-ID: 2185556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05056652129671117 5.3604e-08  
a 2.924517481480218 3.1158e-08 au
q 2.776634805970344 1.667e-07 au
i 3.172813264690661 4.8069e-06 deg
node 121.6111534951091 0.00012669 deg
peri 152.4960469231394 0.00014147 deg
M 28.56371020141085 6.2917e-05 deg
tp 2458855.558791894665
(2020-Jan-07.05879189)
0.00031915 TDB
period 1826.752706493401
5.00
2.9193e-05
7.993e-08
d
yr
n .1970710095134053 3.1494e-09 deg/d
Q 3.072400156990092 3.2733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7774 days (21.28 yr)  
   first obs. used      1998-01-25  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61879  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:52:49  

Additional Information
 Earth MOID = 1.76077 au 
 Jupiter MOID = 1.97719 au 
 T_jup = 3.274 
[ 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 16.0   n/a MPO433217  

185556 (2008 AY8)          Discovered 2008-Jan-10 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2008 AY8 = 1998 BW28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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