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441849 (2009 WO20)
Classification: Main-belt Asteroid          SPK-ID: 2441849
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 .1231312313887376 4.6581e-08  
a 2.19522756955626 1.846e-08 au
q 1.924926495738292 9.4845e-08 au
i 3.314757018656375 7.9816e-06 deg
node 301.2081911326218 8.9188e-05 deg
peri 120.1017927244247 9.9515e-05 deg
M 92.4872240867529 4.4074e-05 deg
tp 2458695.291240814028
(2019-Jul-30.79124081)
0.00014322 TDB
period 1188.003579866201
3.25
1.4985e-05
4.103e-08
d
yr
n .3030293898950582 3.8223e-09 deg/d
Q 2.465528643374229 2.0733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      4785 days (13.10 yr)  
   first obs. used      2006-12-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:37:56  

Additional Information
 Earth MOID = .940371 au 
 Jupiter MOID = 2.80439 au 
 T_jup = 3.657 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457671.5 (2016-Oct-10.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222825698802727 4.6309e-08  
q 1.926820924447125 9.4168e-08 au
tp 2457506.103657784999
(2016-Apr-27.60365778)
0.00013676 TDB
node 301.3113681421075 8.9174e-05 deg
peri 119.7615225392151 9.9695e-05 deg
i 3.314287528962316 7.9837e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      4785 days (13.10 yr)  
   first obs. used      2006-12-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:37:56  

Additional Information
 Jupiter MOID = 2.80439 au 
 T_jup = 3.657 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.144548932537166E-15 -4.31321588932504E-15 2.1062366157216E-12 -2.288703555363569E-14 7.041528643561699E-13 -2.159851119909587E-15
q -4.31321588932504E-15 8.867674238101486E-15 -3.518367673574646E-12 4.522138029106631E-14 -1.178936484846423E-12 4.927068015854899E-15
tp 2.1062366157216E-12 -3.518367673574646E-12 1.870218157968842E-8 -3.451842825732437E-11 6.113382097424662E-9 1.023084387237304E-11
node -2.288703555363569E-14 4.522138029106631E-14 -3.451842825732437E-11 7.951954145484812E-9 -7.949307950062596E-9 2.797188869227578E-10
peri 7.041528643561699E-13 -1.178936484846423E-12 6.113382097424662E-9 -7.949307950062596E-9 9.939141878863146E-9 -2.759375396999047E-10
i -2.159851119909587E-15 4.927068015854899E-15 1.023084387237304E-11 2.797188869227578E-10 -2.759375396999047E-10 6.37396180799304E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a MPO437717  

441849 (2009 WO20)          Discovered 2006-Dec-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 WO20 = 2012 TO43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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