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91084 (1998 FT118)
Classification: Main-belt Asteroid          SPK-ID: 2091084
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141975337244986 7.4036e-08  
a 2.546195569429724 1.2318e-08 au
q 2.000806758077632 1.9397e-07 au
i 6.805780831985369 7.1519e-06 deg
node 350.8151251621397 2.8736e-05 deg
peri 142.2843934916511 3.2633e-05 deg
M 206.0192517908471 1.1092e-05 deg
tp 2459635.246023515896
(2022-Feb-24.74602352)
4.5317e-05 TDB
period 1484.0073913353
4.06
1.0769e-05
2.948e-08
d
yr
n .2425863928319618 1.7604e-09 deg/d
Q 3.091584380781816 1.4957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      7364 days (20.16 yr)  
   first obs. used      1998-03-20  
   last obs. used      2018-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57132  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:21:53  

Additional Information
 Earth MOID = 1.01966 au 
 Jupiter MOID = 1.95994 au 
 T_jup = 3.401 
[ 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 15.5   n/a MPO436408  
diameter diameter 2.245 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.266   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91084 (1998 FT118)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 FT118 = 2000 RA59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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