Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
146722 (2001 XA9)
Classification: Main-belt Asteroid          SPK-ID: 2146722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603937719807891 5.7935e-08  
a 2.795243023034327 2.4104e-08 au
q 2.346903450966867 1.5632e-07 au
i 8.249996412263835 5.1821e-06 deg
node 294.9433414542325 4.0481e-05 deg
peri 252.8891567653876 4.3203e-05 deg
M 245.9317932114661 1.5842e-05 deg
tp 2459541.366270207880
(2021-Nov-22.86627021)
7.8161e-05 TDB
period 1706.977454601392
4.67
2.208e-05
6.045e-08
d
yr
n .2108990947886105 2.728e-09 deg/d
Q 3.243582595101786 2.797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      6561 days (17.96 yr)  
   first obs. used      2001-12-09  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57437  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:01:05  

Additional Information
 Earth MOID = 1.36467 au 
 Jupiter MOID = 1.82693 au 
 T_jup = 3.293 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO453933  

146722 (2001 XA9)          Discovered 2001-Dec-09 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-07 01:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin