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46220 (2001 FW189)
Classification: Main-belt Asteroid          SPK-ID: 2046220
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1991241946855298 3.8378e-08  
a 3.129844395357325 1.8289e-08 au
q 2.506616650640779 1.2361e-07 au
i .5140487264276072 4.7307e-06 deg
node 342.9123688981073 0.00037839 deg
peri 328.6497166368288 0.00037855 deg
M 55.76162698274886 9.3014e-06 deg
tp 2458687.232397921070
(2019-Jul-22.73239792)
5.2637e-05 TDB
period 2022.472134525498
5.54
1.7727e-05
4.853e-08
d
yr
n .1779999802491525 1.5602e-09 deg/d
Q 3.753072140073871 2.1931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1189  
   data-arc span      12142 days (33.24 yr)  
   first obs. used      1986-09-08  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52383  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:52:42  

Additional Information
 Earth MOID = 1.49238 au 
 Jupiter MOID = 1.53335 au 
 T_jup = 3.183 
[ 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 14.3   n/a MPO493177  
diameter diameter 7.848 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46220 (2001 FW189)          Discovered 2001-Mar-18 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 FW189 = 1986 RA9 = 1996 FL18 = 2000 BO43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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