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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2656926650922705 1.7492e-07  
a 2.096274265669145 1.6448e-08 AU
q 1.539309569259167 3.7609e-07 AU
i 4.436253459956053 6.4292e-06 deg
node 95.6005635978684 0.0001218 deg
peri 334.8212482366763 0.00012717 deg
M 31.70422249511002 3.7029e-05 deg
tp 2456702.869573271638
(2014-Feb-14.36957327)
0.00011298 JED
period 1108.589041337676
3.04
1.3048e-05
3.572e-08
d
yr
n .3247371086815064 3.8221e-09 deg/d
Q 2.653238962079122 2.0819e-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      .49406  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 16:05:05  

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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