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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495707959141604 6.3409e-08  
a 2.422604752962297 1.7318e-08 AU
q 2.060253831876298 1.4955e-07 AU
i .4084332215820202 6.1577e-06 deg
node 51.57021794484604 0.00074814 deg
peri 180.0385971364407 0.00074829 deg
M 7.304362008540552 1.8345e-05 deg
tp 2456772.555132004221
(2014-Apr-25.05513200)
7.0259e-05 JED
period 1377.280105602343
3.77
1.4768e-05
4.043e-08
d
yr
n .2613847383227516 2.8027e-09 deg/d
Q 2.784955674048296 1.9908e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      21904 days (59.97 yr)  
   first obs. used      1954-06-30  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51901  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:40:46  

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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