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23460 (1989 SX9)
Classification: Main-belt Asteroid          SPK-ID: 2023460
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2188903463552404 4.7923e-08  
a 2.278096598046655 1.1478e-08 AU
q 1.779443244669528 1.1092e-07 AU
i .6237592982768275 6.3455e-06 deg
node 146.4544634707981 0.00042454 deg
peri 239.9451161575975 0.00042487 deg
M 101.4304304952037 1.4009e-05 deg
tp 2456646.647394225619
(2013-Dec-20.14739423)
4.7957e-05 JED
period 1255.904539267441
3.44
9.4917e-06
2.599e-08
d
yr
n .2866459899969668 2.1664e-09 deg/d
Q 2.776749951423782 1.399e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      9407 days (25.75 yr)  
   first obs. used      1989-09-04  
   last obs. used      2015-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56613  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:33:07  

Additional Information
 Earth MOID = .78364 AU 
 T_jup = 3.575 
[ 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 15.2 mag n/a MPO279758  

23460 (1989 SX9)          Discovered 1989-Sep-26 by Debehogne, H. at La Silla
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 SX9 = 2001 BT62 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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