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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607768616177997 5.7945e-08  
a 2.794259934813061 2.4099e-08 au
q 2.345007591949459 1.5628e-07 au
i 8.250003560380689 5.1822e-06 deg
node 294.9495071698631 4.0491e-05 deg
peri 252.9356555551499 4.3198e-05 deg
M 161.4959419818831 1.5401e-05 deg
tp 2457835.154125269893
(2017-Mar-22.65412527)
7.0274e-05 TDB
period 1706.077016682855
4.67
2.2071e-05
6.043e-08
d
yr
n .2110104036803403 2.7298e-09 deg/d
Q 3.243512277676662 2.7974e-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 = 1.36317 au 
 Jupiter MOID = 1.82835 au 
 T_jup = 3.294 
[ 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 ]
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