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18367 (1991 FS1)
Classification: Main-belt Asteroid          SPK-ID: 2018367
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .149570762855222 6.5801e-08  
a 2.422604752864304 1.7296e-08 AU
q 2.060253911881704 1.5804e-07 AU
i .4084424320008632 6.4253e-06 deg
node 51.56947375564195 0.00091073 deg
peri 180.0393352200807 0.00091097 deg
M 7.304371143762872 2.3671e-05 deg
tp 2456772.555097056583
(2014-Apr-25.05509706)
9.0535e-05 JED
period 1377.280105518778
3.77
1.4749e-05
4.038e-08
d
yr
n .2613847383386108 2.7992e-09 deg/d
Q 2.784955593846905 1.9883e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      21822 days (59.75 yr)  
   first obs. used      1954-06-30  
   last obs. used      2014-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55033  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:12:14  

Additional Information
 Earth MOID = 1.04969 AU 
 T_jup = 3.497 
[ 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 14.2 mag n/a MPO263511  

18367 (1991 FS1)          Discovered 1991-Mar-17 by Debehogne, H. at La Silla (809)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 FS1 = 1992 RP2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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