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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2656926771604414 1.7211e-07  
a 2.096274265292587 1.646e-08 AU
q 1.539309543684462 3.7045e-07 AU
i 4.436261587551992 6.0075e-06 deg
node 95.60053790125011 0.00011863 deg
peri 334.8212662356827 0.00012403 deg
M 31.70422902508108 3.7408e-05 deg
tp 2456702.869553189460
(2014-Feb-14.36955319)
0.00011414 JED
period 1108.58904103897
3.04
1.3057e-05
3.575e-08
d
yr
n .324737108769006 3.8248e-09 deg/d
Q 2.653238986900712 2.0834e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      5611 days (15.36 yr)  
   first obs. used      1998-11-11  
   last obs. used      2014-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47606  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 04:06:21  

Additional Information
 Earth MOID = .554434 AU 
 T_jup = 3.702 
[ 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 (327)
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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