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39953 (1998 FJ118)
Classification: Main-belt Asteroid          SPK-ID: 2039953
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493602966727955 3.9745e-08  
a 2.442505572286 9.5278e-09 au
q 2.077692215384407 9.8963e-08 au
i 5.710772970598205 4.2916e-06 deg
node 233.20530105 4.1324e-05 deg
peri 274.8200020317468 4.4073e-05 deg
M 329.0923903536972 1.4448e-05 deg
tp 2459120.205661101164
(2020-Sep-27.70566110)
5.6105e-05 TDB
period 1394.2856949979
3.82
8.1583e-06
2.234e-08
d
yr
n .258196724883233 1.5108e-09 deg/d
Q 2.807318929187592 1.0951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:39:54  

Additional Information
 Earth MOID = 1.09834 au 
 Jupiter MOID = 2.23432 au 
 T_jup = 3.479 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO502432  
diameter diameter 3.292 km 0.894 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39953 (1998 FJ118)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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