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JPL Small-Body Database Browser
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447929 (2008 AY20)
Classification: Main-belt Asteroid          SPK-ID: 2447929
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1698186206278614 8.5798e-08  
a 3.118738736445256 5.6461e-08 au
q 2.589118826123443 2.6981e-07 au
i 15.20568507277779 2.4399e-05 deg
node 322.5911655202199 3.3654e-05 deg
peri 248.4445053195998 8.5154e-05 deg
M 318.6750424836316 7.5862e-05 deg
tp 2458831.428127255347
(2019-Dec-13.92812726)
0.00042277 TDB
period 2011.71715128797
5.51
5.4629e-05
1.496e-07
d
yr
n .1789515985234384 4.8595e-09 deg/d
Q 3.648358646767068 6.6049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      4048 days (11.08 yr)  
   first obs. used      2008-01-10  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48231  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:22:27  

Additional Information
 Earth MOID = 1.63232 au 
 Jupiter MOID = 1.60782 au 
 T_jup = 3.141 
[ 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 MPO392213  

447929 (2008 AY20)          Discovered 2008-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

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