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392547 (2011 SX18)
Classification: Main-belt Asteroid          SPK-ID: 2392547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08511864597662121 6.2091e-08  
a 3.103228934027402 4.0438e-08 au
q 2.839086289007516 1.8462e-07 au
i 7.917091902459895 6.6382e-06 deg
node 283.9241704315348 5.6252e-05 deg
peri 165.9845499618882 7.3446e-05 deg
M 121.7622585794538 4.779e-05 deg
tp 2458325.149314174240
(2018-Jul-25.64931417)
0.00026131 TDB
period 1996.729115685923
5.47
3.9029e-05
1.069e-07
d
yr
n .1802948618177141 3.5241e-09 deg/d
Q 3.367371579047288 4.388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      7169 days (19.63 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:24:29  

Additional Information
 Earth MOID = 1.85646 au 
 Jupiter MOID = 1.80453 au 
 T_jup = 3.201 
[ 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 16.3   n/a MPO427954  

392547 (2011 SX18)          Discovered 2007-Nov-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2011 SX18 = 2008 AJ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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