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JPL Small-Body Database Browser
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172827 (2005 AA2)
Classification: Main-belt Asteroid          SPK-ID: 2172827
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345170189056811 4.7717e-08  
a 2.217621292340816 1.4484e-08 au
q 1.919313487033366 1.0334e-07 au
i 6.112367569645309 8.6343e-06 deg
node 296.8166929432152 4.5383e-05 deg
peri 122.1332655490491 5.6877e-05 deg
M 283.853095380372 3.3572e-05 deg
tp 2459255.640413013640
(2021-Feb-10.14041301)
0.00011322 TDB
period 1206.22826553129
3.30
1.1817e-05
3.235e-08
d
yr
n .2984509734079528 2.9239e-09 deg/d
Q 2.515929097648267 1.6432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      9459 days (25.90 yr)  
   first obs. used      1992-02-29  
   last obs. used      2018-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58844  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 07:49:21  

Additional Information
 Earth MOID = .940197 au 
 Jupiter MOID = 2.77845 au 
 T_jup = 3.633 
[ 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 16.8   n/a MPO436859  

172827 (2005 AA2)          Discovered 2005-Jan-01 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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