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JPL Small-Body Database Browser
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305569 (2008 WG89)
Classification: Main-belt Asteroid          SPK-ID: 2305569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298609676744749 5.0267e-08  
a 2.304210909206416 1.5758e-08 au
q 2.00498385081079 1.1954e-07 au
i 2.61889819396471 6.1633e-06 deg
node 288.1537539085429 0.00012568 deg
peri 156.5770546835037 0.00012861 deg
M 5.800708486729046 2.5637e-05 deg
tp 2458579.914552642071
(2019-Apr-06.41455264)
9.0971e-05 TDB
period 1277.561364410716
3.50
1.3105e-05
3.588e-08
d
yr
n .2817868558243795 2.8906e-09 deg/d
Q 2.603437967602043 1.7804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      7692 days (21.06 yr)  
   first obs. used      1997-09-28  
   last obs. used      2018-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57974  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:37:24  

Additional Information
 Earth MOID = 1.02144 au 
 Jupiter MOID = 2.58486 au 
 T_jup = 3.576 
[ 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 18.1   n/a MPO460267  

305569 (2008 WG89)          Discovered 2008-Nov-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2008 WG89 = 1997 SP14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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