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JPL Small-Body Database Browser
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39921 (1998 FO54)
Classification: Main-belt Asteroid          SPK-ID: 2039921
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2485094933208014 3.1822e-08  
a 2.398468723856803 6.9884e-09 au
q 1.80242647654536 7.5686e-08 au
i 1.618166253947482 3.6954e-06 deg
node 339.5574945957464 0.00014288 deg
peri 108.8222014268347 0.00014331 deg
M 57.48555104681061 8.0684e-06 deg
tp 2458783.851486108646
(2019-Oct-27.35148611)
3.0351e-05 TDB
period 1356.74901919923
3.71
5.9297e-06
1.623e-08
d
yr
n .2653401586481163 1.1597e-09 deg/d
Q 2.994510971168246 8.7251e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1194  
   data-arc span      9546 days (26.14 yr)  
   first obs. used      1993-12-17  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:38:55  

Additional Information
 Earth MOID = .819654 au 
 Jupiter MOID = 2.22964 au 
 T_jup = 3.484 
[ 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 15.4   n/a MPO347806  

39921 (1998 FO54)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FO54 = 1994 CC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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