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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574144578214329 5.5994e-08  
a 2.440711047557768 1.135e-08 au
q 2.05650784130768 1.3878e-07 au
i 2.948214572269588 4.1465e-06 deg
node 66.68582010816161 0.00011165 deg
peri 74.31900245110319 0.00011303 deg
M 11.82108247810982 1.6668e-05 deg
tp 2459154.767207156330
(2020-Nov-01.26720716)
6.4433e-05 TDB
period 1392.749391116132
3.81
9.7149e-06
2.66e-08
d
yr
n .2584815346510406 1.803e-09 deg/d
Q 2.824914253807855 1.3136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1998-03-22  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56687  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:54  

Additional Information
 Earth MOID = 1.07172 au 
 Jupiter MOID = 2.19513 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457414.5 (2016-Jan-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568404457267238 5.6459e-08  
q 2.0579010536952 1.3994e-07 au
tp 2457763.439605886359
(2017-Jan-09.93960589)
6.3701e-05 TDB
node 66.69628054323417 0.00011167 deg
peri 74.64405735472879 0.00011305 deg
i 2.94823783341506 4.1466e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1998-03-22  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56687  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:54  

Additional Information
 Jupiter MOID = 2.19513 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.187674791904427E-15 -7.883075979894018E-15 2.142682957984712E-12 7.177452315139389E-14 6.353059465428969E-13 -4.82804473586946E-15
q -7.883075979894018E-15 1.958255324901555E-14 -5.232572838413842E-12 -1.765507068992199E-13 -1.562784979386597E-12 1.197802934504513E-14
tp 2.142682957984712E-12 -5.232572838413842E-12 4.057818602237956E-9 5.114701412930878E-11 1.162087776868416E-9 -3.064914476398858E-12
node 7.177452315139389E-14 -1.765507068992199E-13 5.114701412930878E-11 1.247098534254463E-8 -1.243754912695234E-8 -1.695349018208832E-10
peri 6.353059465428969E-13 -1.562784979386597E-12 1.162087776868416E-9 -1.243754912695234E-8 1.278032690464576E-8 1.682866822102393E-10
i -4.82804473586946E-15 1.197802934504513E-14 -3.064914476398858E-12 -1.695349018208832E-10 1.682866822102393E-10 1.719437769824354E-11

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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