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100809 (1998 FW117)
Classification: Main-belt Asteroid          SPK-ID: 2100809
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2253329466472845 3.9419e-08  
a 2.209686861177763 8.8169e-09 au
q 1.711771609580789 8.4109e-08 au
i 4.826464429779455 4.696e-06 deg
node 342.0301005097911 5.112e-05 deg
peri 242.9377289713571 5.2486e-05 deg
M 252.8922225612761 1.2726e-05 deg
tp 2459357.454641632391
(2021-May-22.95464163)
4.3374e-05 TDB
period 1199.76041012687
3.28
7.1808e-06
1.966e-08
d
yr
n .3000599094296931 1.7959e-09 deg/d
Q 2.707602112774738 1.0804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      7970 days (21.82 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:11:32  

Additional Information
 Earth MOID = .709744 au 
 Jupiter MOID = 2.29762 au 
 T_jup = 3.620 
[ 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 16.6   n/a MPC3-M13  
diameter diameter 2.611 km 0.754 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100809 (1998 FW117)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 FW117 = 2001 BA65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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