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308107 (2004 WT9)
Classification: Inner Main-belt Asteroid          SPK-ID: 2308107
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 .1203328379432803 5.3191e-08  
a 1.915537566217819 1.0849e-08 au
q 1.685035494687865 1.0579e-07 au
i 20.85167819182431 8.2434e-06 deg
node 359.0367939003546 1.134e-05 deg
peri 50.32066177949442 3.7956e-05 deg
M 319.9457494051745 3.6575e-05 deg
tp 2459108.240887073472
(2020-Sep-15.74088707)
9.8834e-05 TDB
period 968.3546382830217
2.65
8.2265e-06
2.252e-08
d
yr
n .3717646260654173 3.1583e-09 deg/d
Q 2.146039637747773 1.2154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      6924 days (18.96 yr)  
   first obs. used      2001-08-17  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54938  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:56:45  

Additional Information
 Earth MOID = .729632 au 
 Jupiter MOID = 3.18872 au 
 T_jup = 3.842 
[ 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 17.1   n/a MPO427640  

308107 (2004 WT9)          Discovered 2004-Nov-30 by LINEAR at Socorro
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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