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8746 (1998 FL68)
Classification: Main-belt Asteroid          SPK-ID: 2008746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1617593971354941 3.2536e-08  
a 3.166030969042287 1.5785e-08 au
q 2.653895708177703 1.0337e-07 au
i 4.823161701512326 4.8604e-06 deg
node 356.4312597859123 4.474e-05 deg
peri 98.31017019225594 4.7398e-05 deg
M 58.89677459891833 1.4831e-05 deg
tp 2458663.864295915909
(2019-Jun-29.36429592)
8.431e-05 TDB
period 2057.648390689603
5.63
1.5388e-05
4.213e-08
d
yr
n .1749570051078305 1.3084e-09 deg/d
Q 3.678166229906872 1.8338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1788  
   data-arc span      16398 days (44.90 yr)  
   first obs. used      1975-03-15  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51151  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:02:38  

Additional Information
 Earth MOID = 1.67608 au 
 Jupiter MOID = 1.53179 au 
 T_jup = 3.178 
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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 13.1   n/a MPO502235  
diameter diameter 13.590 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8746 (1998 FL68)          Discovered 1998-Mar-20 by the Lincoln Near-Earth Asteroid Research Team at Socorro
Reference: 19980511/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 FL68 = 1975 EH4 = 1978 SG3 = 1979 YF9 = 1986 AP2 = 1990 VY11 = 1992 EN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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