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123974 (2001 FW28)
Classification: Main-belt Asteroid          SPK-ID: 2123974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .1571381396454952 4.0626e-08  
a 3.159117406307372 2.3898e-08 au
q 2.66269957415853 1.2568e-07 au
i 6.32289540401696 5.2074e-06 deg
node 57.86277523952249 4.4479e-05 deg
peri 204.291112448004 4.7712e-05 deg
M 91.34335260082932 1.831e-05 deg
tp 2458480.118889738683
(2018-Dec-27.61888974)
0.00010306 TDB
period 2050.912237836705
5.62
2.3272e-05
6.372e-08
d
yr
n .1755316455567727 1.9918e-09 deg/d
Q 3.655535238456214 2.7653e-08 au
  Orbit Determination Parameters
   # obs. used (total)      684  
   data-arc span      7572 days (20.73 yr)  
   first obs. used      2000-01-31  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:31:05  

Additional Information
 Earth MOID = 1.64888 au 
 Jupiter MOID = 1.42311 au 
 T_jup = 3.177 
[ 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 14.6   n/a MPO320401  
diameter diameter 6.781 km 0.351 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123974 (2001 FW28)          Discovered 2001-Mar-19 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 FW28 = 2002 LK54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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