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9338 (1991 FL4)
Classification: Main-belt Asteroid          SPK-ID: 2009338
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1986850332982943 4.9541e-08  
a 3.11958126651698 2.9326e-08 au
q 2.499767158702319 1.5207e-07 au
i 13.74453987740676 7.7454e-06 deg
node 182.0546288162872 2.3846e-05 deg
peri 104.6955169883655 3.1152e-05 deg
M 102.9931668605998 2.1551e-05 deg
tp 2456824.730316609628
(2014-Jun-16.23031661)
0.00011774 JED
period 2012.532407136111
5.51
2.8379e-05
7.77e-08
d
yr
n .1788791071008342 2.5224e-09 deg/d
Q 3.739395374331642 3.5153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      10305 days (28.21 yr)  
   first obs. used      1987-09-21  
   last obs. used      2015-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49485  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:10:16  

Additional Information
 Earth MOID = 1.52619 au 
 Jupiter MOID = 1.73326 au 
 T_jup = 3.142 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO347599  

9338 (1991 FL4)          Discovered 1991-Mar-25 by Debehogne, H. at La Silla
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 FL4 = 1987 SG6 = 1992 PY4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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