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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2195210570002391 4.7958e-08  
a 2.27686041169903 1.1381e-08 au
q 1.777041607480859 1.1094e-07 au
i .6243555135819423 6.3465e-06 deg
node 146.4879088705341 0.00042425 deg
peri 239.8354706688924 0.00042458 deg
M 216.2182447084102 1.4314e-05 deg
tp 2457901.692214734059
(2017-May-28.19221473)
5.1633e-05 JED
period 1254.882421892473
3.44
9.4086e-06
2.576e-08
d
yr
n .2868794667289134 2.1509e-09 deg/d
Q 2.7766792159172 1.3879e-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 = .779833 au 
 Jupiter MOID = 2.67198 au 
 T_jup = 3.576 
[ 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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