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JPL Small-Body Database Browser
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117427 (2005 AY21)
Classification: Main-belt Asteroid          SPK-ID: 2117427
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08240170266099218 7.7508e-08  
a 2.642843131427874 2.4804e-08 au
q 2.425068357532309 1.9847e-07 au
i 14.11314305231015 8.0278e-06 deg
node 297.2508019060503 1.8562e-05 deg
peri 194.6691503291603 3.3551e-05 deg
M 125.225175191534 3.1358e-05 deg
tp 2458054.623179978188
(2017-Oct-28.12317998)
0.0001351 TDB
period 1569.298305291077
4.30
2.2093e-05
6.049e-08
d
yr
n .2294018917794131 3.2296e-09 deg/d
Q 2.860617905323439 2.6848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      6786 days (18.58 yr)  
   first obs. used      1999-10-16  
   last obs. used      2018-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5552  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:34:47  

Additional Information
 Earth MOID = 1.44278 au 
 Jupiter MOID = 2.22865 au 
 T_jup = 3.346 
[ 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 15.3   n/a MPO254008  

117427 (2005 AY21)          Discovered 2005-Jan-06 by Tucker, R. A. at Goodricke-Pigott
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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