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JPL Small-Body Database Browser
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46993 (1998 TF18)
Classification: Main-belt Asteroid          SPK-ID: 2046993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1919488650464132 3.0208e-08  
a 2.568548067792183 9.5314e-09 au
q 2.075518181362316 7.5873e-08 au
i 4.528827021576444 3.5867e-06 deg
node 204.0782375593747 6.1e-05 deg
peri 217.4463113489329 6.2517e-05 deg
M 66.78074654999216 1.4053e-05 deg
tp 2458721.580587244038
(2019-Aug-26.08058724)
5.8256e-05 TDB
period 1503.591885079907
4.12
8.3693e-06
2.291e-08
d
yr
n .2394266712744783 1.3327e-09 deg/d
Q 3.06157795422205 1.1361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1338  
   data-arc span      10208 days (27.95 yr)  
   first obs. used      1992-05-07  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5223  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:36:13  

Additional Information
 Earth MOID = 1.09035 au 
 Jupiter MOID = 2.28011 au 
 T_jup = 3.401 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO359053  

46993 (1998 TF18)          Discovered 1998-Oct-13 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 TF18 = 2000 EA151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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