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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2655448678297204 1.5661e-07  
a 2.096009192058668 1.5756e-08 au
q 1.53942470818357 3.3727e-07 au
i 4.435895046241472 5.9528e-06 deg
node 95.59720177053681 0.00011628 deg
peri 334.7543532273652 0.00012203 deg
M 226.6709074729528 3.8833e-05 deg
tp 2457810.997601268699
(2017-Feb-26.49760127)
0.0001239 JED
period 1108.378776573109
3.03
1.2498e-05
3.422e-08
d
yr
n .3247987128669584 3.6623e-09 deg/d
Q 2.652593675933766 1.994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      6026 days (16.50 yr)  
   first obs. used      1998-11-11  
   last obs. used      2015-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48281  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 20:46:19  

Additional Information
 Earth MOID = .554684 au 
 Jupiter MOID = 2.65367 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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