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85808 (1998 WF12)
Classification: Main-belt Asteroid          SPK-ID: 2085808
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250233219577078 4.3808e-08  
a 2.419272417020685 1.0729e-08 au
q 2.116806942724106 1.1158e-07 au
i 5.69740954992823 3.5522e-06 deg
node 229.1401501091286 3.9452e-05 deg
peri 172.7027952898834 4.3489e-05 deg
M 14.29674435615927 2.0604e-05 deg
tp 2459341.916643471661
(2021-May-07.41664347)
7.8455e-05 TDB
period 1374.439373096603
3.76
9.1432e-06
2.503e-08
d
yr
n .2619249761369412 1.7424e-09 deg/d
Q 2.721737891317264 1.2071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1998-11-10  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:05  

Additional Information
 Earth MOID = 1.12489 au 
 Jupiter MOID = 2.65696 au 
 T_jup = 3.497 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.62   n/a E2021B10  

85808 (1998 WF12)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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