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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1920317124413731 3.0187e-08  
a 2.568106020825366 9.5331e-09 au
q 2.07494822391527 7.5805e-08 au
i 4.529364297636145 3.5852e-06 deg
node 204.0736429316639 6.0974e-05 deg
peri 217.3985368849345 6.249e-05 deg
M 114.7198134005085 1.4127e-05 deg
tp 2458721.479850929624
(2019-Aug-25.97985093)
5.8219e-05 TDB
period 1503.203749672164
4.12
8.3701e-06
2.292e-08
d
yr
n .2394884925470103 1.3335e-09 deg/d
Q 3.061263817735461 1.1364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1345  
   data-arc span      10241 days (28.04 yr)  
   first obs. used      1992-05-07  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52264  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:54:34  

Additional Information
 Earth MOID = 1.08909 au 
 Jupiter MOID = 2.28129 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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