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18406 (1993 FT14)
Classification: Main-belt Asteroid          SPK-ID: 2018406
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2493280689190904 3.9593e-08  
a 2.593381340492966 1.0944e-08 au
q 1.946778578897053 1.0038e-07 au
i 5.560996754254601 4.8696e-06 deg
node 131.3566726003254 5.7137e-05 deg
peri 344.4371733745712 5.8486e-05 deg
M 226.2648753238805 1.2588e-05 deg
tp 2459567.184045519791
(2021-Dec-18.68404552)
5.4872e-05 TDB
period 1525.450078139069
4.18
9.6564e-06
2.644e-08
d
yr
n .2359959235369879 1.4939e-09 deg/d
Q 3.239984102088879 1.3673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1113  
   data-arc span      9739 days (26.66 yr)  
   first obs. used      1991-10-14  
   last obs. used      2018-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53987  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:48:51  

Additional Information
 Earth MOID = .963722 au 
 Jupiter MOID = 1.87327 au 
 T_jup = 3.367 
[ 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 14.5   n/a MPO253492  
diameter diameter 3.020 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.597 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.369   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18406 (1993 FT14)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 FT14 = 1997 AG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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