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100816 (1998 FT129)
Classification: Main-belt Asteroid          SPK-ID: 2100816
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157414458452427 5.7734e-08  
a 2.4407110506223 1.1624e-08 au
q 2.056507842349736 1.4335e-07 au
i 2.94821439754732 4.1703e-06 deg
node 66.68581869454603 0.00011388 deg
peri 74.31900325826395 0.00011522 deg
M 11.82108207280714 1.6679e-05 deg
tp 2459154.767208638212
(2020-Nov-01.26720864)
6.4477e-05 TDB
period 1392.749393739215
3.81
9.9495e-06
2.724e-08
d
yr
n .2584815341642203 1.8465e-09 deg/d
Q 2.824914258894863 1.3454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      422  
   data-arc span      8336 days (22.82 yr)  
   first obs. used      1998-03-22  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57461  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:33:00  

Additional Information
 Earth MOID = 1.07172 au 
 Jupiter MOID = 2.19513 au 
 T_jup = 3.483 
[ 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 16.5   n/a MPO453462  

100816 (1998 FT129)          Discovered 1998-Mar-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 FT129 = 2000 TM55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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