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332793 (2009 WB28)
Classification: Main-belt Asteroid          SPK-ID: 2332793
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07049793617320872 6.0993e-08  
a 3.093982376929826 4.8975e-08 au
q 2.875863004799994 1.9889e-07 au
i 8.964899842276218 7.4791e-06 deg
node 247.8533951888091 5.0808e-05 deg
peri 206.2343810200091 7.8029e-05 deg
M 306.4862611201098 5.9773e-05 deg
tp 2459295.986725121796
(2021-Mar-22.48672512)
0.00033162 TDB
period 1987.811415730119
5.44
4.7197e-05
1.292e-07
d
yr
n .1811036988474949 4.3e-09 deg/d
Q 3.312101749059658 5.2427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      5870 days (16.07 yr)  
   first obs. used      2003-10-01  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 09:46:20  

Additional Information
 Earth MOID = 1.89545 au 
 Jupiter MOID = 1.91112 au 
 T_jup = 3.201 
[ 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 15.9   n/a MPO494758  

332793 (2009 WB28)          Discovered 2009-Nov-16 by Spacewatch at Kitt Peak
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2009 WB28 = 2003 TK22 = 2008 SF199 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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