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JPL Small-Body Database Browser
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39952 (1998 FM117)
Classification: Main-belt Asteroid          SPK-ID: 2039952
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770597822641544 4.674e-08  
a 2.726241991215989 1.8587e-08 au
q 2.243534177851891 1.253e-07 au
i 13.28289134664945 5.9976e-06 deg
node .4027309152629212 1.8986e-05 deg
peri 247.4662816308422 2.4774e-05 deg
M 211.4361007598766 1.6144e-05 deg
tp 2459279.009323488908
(2021-Mar-05.50932349)
7.5113e-05 TDB
period 1644.163607076607
4.50
1.6814e-05
4.603e-08
d
yr
n .2189563121641497 2.2392e-09 deg/d
Q 3.208949804580087 2.1878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      7572 days (20.73 yr)  
   first obs. used      1998-03-25  
   last obs. used      2018-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56701  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:09:15  

Additional Information
 Earth MOID = 1.27021 au 
 Jupiter MOID = 1.9609 au 
 T_jup = 3.295 
[ 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 14.8   n/a MPO385071  

39952 (1998 FM117)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FM117 = 1999 RD75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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