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308611 (2005 WF60)
Classification: Main-belt Asteroid          SPK-ID: 2308611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137933078142228 6.6577e-08  
a 3.133235886372991 4.1173e-08 au
q 2.701059016019872 2.0611e-07 au
i 18.91652588717966 7.7879e-06 deg
node 75.51253427950702 1.996e-05 deg
peri 302.9158064305943 3.1842e-05 deg
M 253.9922351780498 2.866e-05 deg
tp 2459597.017572292680
(2022-Jan-17.51757229)
0.00016843 TDB
period 2025.760342990449
5.55
3.993e-05
1.093e-07
d
yr
n .1777110511841515 3.5029e-09 deg/d
Q 3.56541275672611 4.6853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      8947 days (24.50 yr)  
   first obs. used      1994-12-02  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:18:40  

Additional Information
 Earth MOID = 1.75589 au 
 Jupiter MOID = 1.96589 au 
 T_jup = 3.115 
[ show covariance matrix ]

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 15.4   n/a MPO437367  
diameter diameter 5.100 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308611 (2005 WF60)          Discovered 2005-Nov-26 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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