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21843 (1999 TF105)
Classification: Main-belt Asteroid          SPK-ID: 2021843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1010994705395172 3.6748e-08  
a 2.255130880378167 6.9838e-09 au
q 2.027138342374619 8.3616e-08 au
i 2.603965064954838 3.7968e-06 deg
node 281.4649455213835 9.3095e-05 deg
peri 286.1035360010659 9.548e-05 deg
M 322.7027418167108 2.2651e-05 deg
tp 2459524.653496825759
(2021-Nov-06.15349683)
7.7978e-05 TDB
period 1236.961136139065
3.39
5.746e-06
1.573e-08
d
yr
n .2910358211606149 1.3519e-09 deg/d
Q 2.483123418381715 7.6899e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      9974 days (27.31 yr)  
   first obs. used      1994-01-16  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55355  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:37:08  

Additional Information
 Earth MOID = 1.02466 au 
 Jupiter MOID = 2.48471 au 
 T_jup = 3.616 
[ 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 15.32   n/a MPCxxxxx  

21843 (1999 TF105)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TF105 = 1998 KP67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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