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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457306.5 (2015-Oct-11.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .100999148123968 3.6783e-08  
q 2.027205825499632 8.3653e-08 au
tp 2457051.689024272027
(2015-Jan-29.18902427)
7.6026e-05 TDB
node 281.5134579729731 9.3149e-05 deg
peri 286.2838101313562 9.5539e-05 deg
i 2.603020905768113 3.796e-06 deg
  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
 Jupiter MOID = 2.48471 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.35298222732218E-15 -3.068442564176964E-15 -8.857796179853751E-13 2.812550478335371E-15 -2.406891336154523E-13 3.33814755932853E-16
q -3.068442564176964E-15 6.997844605257046E-15 2.044284890252636E-12 -6.645591100272577E-15 5.56620388869168E-13 -7.092796906526611E-16
tp -8.857796179853751E-13 2.044284890252636E-12 5.780025839318223E-9 -1.227390088657159E-12 1.632853554260898E-9 -2.386321188317917E-13
node 2.812550478335371E-15 -6.645591100272577E-15 -1.227390088657159E-12 8.676684993994815E-9 -8.667752909008387E-9 7.417292696112109E-11
peri -2.406891336154523E-13 5.56620388869168E-13 1.632853554260898E-9 -8.667752909008387E-9 9.127771069714986E-9 -7.416739099171239E-11
i 3.33814755932853E-16 -7.092796906526611E-16 -2.386321188317917E-13 7.417292696112109E-11 -7.416739099171239E-11 1.440992964148581E-11

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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