Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2654579781753186 1.5666e-07  
a 2.096223264355815 1.5763e-08 au
q 1.539764074795854 3.374e-07 au
i 4.43558746330589 5.9523e-06 deg
node 95.5952933096405 0.00011629 deg
peri 334.7361688246629 0.00012204 deg
M 291.6416498985993 3.952e-05 deg
tp 2457810.995978445377
(2017-Feb-26.49597845)
0.00012392 JED
period 1108.548584451322
3.04
1.2504e-05
3.423e-08
d
yr
n .324748960081152 3.663e-09 deg/d
Q 2.652682453915776 1.9948e-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 = .55414 au 
 Jupiter MOID = 2.65206 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
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Apr-29 01:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin