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393000 (2012 XK120)
Classification: Main-belt Asteroid          SPK-ID: 2393000
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344136778072593 4.6651e-08  
a 2.554530979052141 2.0977e-08 au
q 2.211167075085164 1.2449e-07 au
i 4.822298169120022 1.0291e-05 deg
node 338.5449679434712 8.5094e-05 deg
peri 50.98140976175205 9.9362e-05 deg
M .645512607588674 5.2691e-05 deg
tp 2458997.825962978278
(2020-May-28.32596298)
0.00021826 TDB
period 1491.300582673354
4.08
1.8369e-05
5.029e-08
d
yr
n .2414000263814369 2.9735e-09 deg/d
Q 2.897894883019118 2.3797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      8241 days (22.56 yr)  
   first obs. used      1997-02-03  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56314  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:25  

Additional Information
 Earth MOID = 1.21962 au 
 Jupiter MOID = 2.5625 au 
 T_jup = 3.421 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457066.5 (2015-Feb-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361298846454492 4.7195e-08  
q 2.20679239460295 1.2639e-07 au
tp 2457502.712923370895
(2016-Apr-24.21292337)
0.000207 TDB
node 338.7487551414547 8.5046e-05 deg
peri 50.10132777103053 9.8816e-05 deg
i 4.826708490837079 1.0284e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      8241 days (22.56 yr)  
   first obs. used      1997-02-03  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56314  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:25  

Additional Information
 Jupiter MOID = 2.5625 au 
 T_jup = 3.421 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.227379456593795E-15 -5.905215910092033E-15 -2.752188966323773E-12 -3.087916061927529E-14 -5.293138096048902E-13 2.584305810059467E-15
q -5.905215910092033E-15 1.597446417146564E-14 8.280908948756409E-12 8.640427852278191E-14 1.623839609772314E-12 -6.429602574209567E-15
tp -2.752188966323773E-12 8.280908948756409E-12 4.285004764022379E-8 2.441319713241222E-10 1.046300569488715E-8 -1.454840841729408E-11
node -3.087916061927529E-14 8.640427852278191E-14 2.441319713241222E-10 7.232825350793207E-9 -7.146744698421442E-9 -6.104565763013971E-10
peri -5.293138096048902E-13 1.623839609772314E-12 1.046300569488715E-8 -7.146744698421442E-9 9.764654801132613E-9 6.047948570729999E-10
i 2.584305810059467E-15 -6.429602574209567E-15 -1.454840841729408E-11 -6.104565763013971E-10 6.047948570729999E-10 1.057540173420107E-10

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 16.9   n/a MPO446664  

393000 (2012 XK120)          Discovered 2003-Sep-18 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 XK120 = 2003 SO27 = 2010 OS43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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