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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574453967971791 6.0043e-08  
a 2.440702298375938 1.2079e-08 au
q 2.056424956544351 1.4957e-07 au
i 2.948338400152042 4.2386e-06 deg
node 66.68939099300353 0.00011635 deg
peri 74.35303151998916 0.00011766 deg
M 320.0981724443264 1.6618e-05 deg
tp 2459154.869297816467
(2020-Nov-01.36929782)
6.4448e-05 TDB
period 1392.741902269741
3.81
1.0339e-05
2.831e-08
d
yr
n .2584829245198345 1.9188e-09 deg/d
Q 2.824979640207524 1.3981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      7921 days (21.69 yr)  
   first obs. used      1998-03-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59268  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 09:33:40  

Additional Information
 Earth MOID = 1.07174 au 
 Jupiter MOID = 2.19571 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457221.5 (2015-Jul-18.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568063072891707 6.0481e-08  
q 2.058263047556153 1.5068e-07 au
tp 2457763.310536677683
(2017-Jan-09.81053668)
6.3906e-05 TDB
node 66.6994800799319 0.00011639 deg
peri 74.59011537309198 0.0001177 deg
i 2.948124775228049 4.2381e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      7921 days (21.69 yr)  
   first obs. used      1998-03-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59268  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 09:33:40  

Additional Information
 Jupiter MOID = 2.19571 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.658005559847252E-15 -9.093982789609843E-15 2.223079245293483E-12 9.079219206734153E-14 6.663891910074084E-13 -5.655723473064859E-15
q -9.093982789609843E-15 2.270492467966011E-14 -5.441962782991962E-12 -2.238407644917239E-13 -1.647390652279651E-12 1.413387010302601E-14
tp 2.223079245293483E-12 -5.441962782991962E-12 4.083940235743475E-9 6.205714665971668E-11 1.16407112201016E-9 -3.028562295607008E-12
node 9.079219206734153E-14 -2.238407644917239E-13 6.205714665971668E-11 1.354568578363159E-8 -1.350705105741939E-8 -1.719306848353754E-10
peri 6.663891910074084E-13 -1.647390652279651E-12 1.16407112201016E-9 -1.350705105741939E-8 1.385246510194415E-8 1.706325674368397E-10
i -5.655723473064859E-15 1.413387010302601E-14 -3.028562295607008E-12 -1.719306848353754E-10 1.706325674368397E-10 1.796122936567318E-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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