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18405 (1993 FY12)
Classification: Main-belt Asteroid          SPK-ID: 2018405
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07524185694123793 1.4388e-08  
a 2.848806246249771 1.17e-08 au
q 2.634456774216141 4.4848e-08 au
i 9.467574466008553 7.0789e-07 deg
node 164.2606609313502 2.6821e-06 deg
peri 67.71728809467756 1.6212e-05 deg
M 238.6949948752588 1.8585e-05 deg
tp 2459792.291899165763
(2022-Jul-31.79189917)
9.1935e-05 TDB
period 1756.276119691802
4.81
1.082e-05
2.962e-08
d
yr
n .2049791578690794 1.2628e-09 deg/d
Q 3.063155718283401 1.258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2272  
   data-arc span      12055 days (33.00 yr)  
   first obs. used      1988-03-22  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:43:18  

Additional Information
 Earth MOID = 1.64174 au 
 Jupiter MOID = 1.94992 au 
 T_jup = 3.282 
[ 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 13.09   n/a E2021B10  

18405 (1993 FY12)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 FY12 = 1998 FS79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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