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392957 (2012 WF27)
Classification: Main-belt Asteroid          SPK-ID: 2392957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05311295432837293 7.1934e-08  
a 2.631849895854846 4.0295e-08 au
q 2.492064572537174 2.0495e-07 au
i 22.75763746962414 9.0514e-06 deg
node 65.1777511001911 2.465e-05 deg
peri 14.49697320068965 0.00010452 deg
M 264.4648144742969 9.9575e-05 deg
tp 2459414.357616066438
(2021-Jul-18.85761607)
0.00043042 TDB
period 1559.516956648746
4.27
3.5816e-05
9.806e-08
d
yr
n .2308407090190323 5.3015e-09 deg/d
Q 2.771635219172517 4.2435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      5293 days (14.49 yr)  
   first obs. used      2006-05-08  
   last obs. used      2020-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52761  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:51:53  

Additional Information
 Earth MOID = 1.50908 au 
 Jupiter MOID = 2.51051 au 
 T_jup = 3.287 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457484.5 (2016-Apr-06.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05345012347488108 7.2901e-08  
q 2.491850620363762 2.0721e-07 au
tp 2457844.428340099558
(2017-Mar-31.92834010)
0.00042966 TDB
node 65.20956093939282 2.4634e-05 deg
peri 12.27851390400513 0.00010342 deg
i 22.76675632271471 9.062e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      5293 days (14.49 yr)  
   first obs. used      2006-05-08  
   last obs. used      2020-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52761  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:51:53  

Additional Information
 Jupiter MOID = 2.51051 au 
 T_jup = 3.287 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.314625435840912E-15 -1.487796871850308E-14 -8.661599329553554E-12 -3.295987871202979E-14 -1.997197171965811E-12 4.892777672774062E-15
q -1.487796871850308E-14 4.293763182388092E-14 2.025918660976865E-11 9.281097060445821E-14 4.583582739659143E-12 -2.214090520502261E-15
tp -8.661599329553554E-12 2.025918660976865E-11 1.846108850867927E-7 1.485799187832876E-10 4.326561378972131E-8 -1.901991205373365E-10
node -3.295987871202979E-14 9.281097060445821E-14 1.485799187832876E-10 6.06813360670985E-10 -5.251248442028772E-10 -9.572227065013016E-11
peri -1.997197171965811E-12 4.583582739659143E-12 4.326561378972131E-8 -5.251248442028772E-10 1.06959257361129E-8 4.308619194556665E-11
i 4.892777672774062E-15 -2.214090520502261E-15 -1.901991205373365E-10 -9.572227065013016E-11 4.308619194556665E-11 8.211914957239906E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO247266  

392957 (2012 WF27)          Discovered 2006-May-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

Alternate Designations
 2012 WF27 = 2006 JR54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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