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129737 (1999 AA9)
Classification: Mars-crossing Asteroid          SPK-ID: 2129737
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2657101961049156 1.6587e-07  
a 2.095840930445276 1.6235e-08 AU
q 1.538954625811953 3.5706e-07 AU
i 4.43610936946638 5.9741e-06 deg
node 95.59646531157446 0.00011863 deg
peri 334.7749051300927 0.00012402 deg
M 96.7064351239361 3.7679e-05 deg
tp 2456702.793184813527
(2014-Feb-14.29318481)
0.0001128 JED
period 1108.245313042287
3.03
1.2877e-05
3.526e-08
d
yr
n .3248378276572632 3.7744e-09 deg/d
Q 2.652727235078599 2.0548e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      5918 days (16.20 yr)  
   first obs. used      1998-11-11  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47666  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 17:35:15  

Additional Information
 Earth MOID = .554605 AU 
 T_jup = 3.703 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5 mag n/a MPO270643  

129737 (1999 AA9)          Discovered 1999-Jan-09 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1999 AA9 = 2001 SV55 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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