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JPL Small-Body Database Browser
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390178 (2012 WF6)
Classification: Main-belt Asteroid          SPK-ID: 2390178
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06322529729286555 7.028e-08  
a 2.709027959112544 4.0437e-08 au
q 2.537748861022969 2.0706e-07 au
i 8.163980607338209 6.8394e-06 deg
node 67.66752144305488 4.4802e-05 deg
peri 282.4237072103701 7.1019e-05 deg
M 313.8385608093312 5.8977e-05 deg
tp 2459209.331254565386
(2020-Dec-25.83125457)
0.00026829 TDB
period 1628.615852573678
4.46
3.6465e-05
9.984e-08
d
yr
n .2210466018927036 4.9493e-09 deg/d
Q 2.88030705720212 4.2994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      5704 days (15.62 yr)  
   first obs. used      2003-10-21  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:44  

Additional Information
 Earth MOID = 1.54782 au 
 Jupiter MOID = 2.3861 au 
 T_jup = 3.346 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457756.5 (2017-Jan-03.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06421407103680421 7.0592e-08  
q 2.533620777204886 2.0788e-07 au
tp 2457588.163769450226
(2016-Jul-18.66376945)
0.00025455 TDB
node 67.68416569682074 4.4756e-05 deg
peri 283.8143877837672 7.0166e-05 deg
i 8.170060517793626 6.847e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      5704 days (15.62 yr)  
   first obs. used      2003-10-21  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:44  

Additional Information
 Jupiter MOID = 2.3861 au 
 T_jup = 3.346 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.983242964070798E-15 -1.446872499886867E-14 5.756869300961591E-12 -4.611773921302111E-15 1.190388481624604E-12 -2.472214968766665E-16
q -1.446872499886867E-14 4.321548183022446E-14 -1.380962203080061E-11 1.844479635866061E-14 -2.820833888372508E-12 2.084962539109143E-15
tp 5.756869300961591E-12 -1.380962203080061E-11 6.479400360127965E-8 7.427652827097356E-11 1.380353771600894E-8 -9.762217630543472E-12
node -4.611773921302111E-15 1.844479635866061E-14 7.427652827097356E-11 2.003057279430547E-9 -1.966526180744757E-9 -1.012347373599143E-10
peri 1.190388481624604E-12 -2.820833888372508E-12 1.380353771600894E-8 -1.966526180744757E-9 4.923224322709801E-9 9.824214338077534E-11
i -2.472214968766665E-16 2.084962539109143E-15 -9.762217630543472E-12 -1.012347373599143E-10 9.824214338077534E-11 4.688145394651866E-11

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 16.4   n/a MPO476836  

390178 (2012 WF6)          Discovered 2003-Oct-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 2012 WF6 = 2010 EX130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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