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243331 (2008 TE21)
Classification: Main-belt Asteroid          SPK-ID: 2243331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954861818168198 5.6508e-08  
a 2.434725494574131 2.3255e-08 au
q 1.958770303867766 1.4442e-07 au
i 7.502798225652091 9.5727e-06 deg
node 216.6463607669819 4.7118e-05 deg
peri 283.9414441673649 5.3932e-05 deg
M 299.9863322696207 3.3139e-05 deg
tp 2459231.824216887597
(2021-Jan-17.32421689)
0.00013003 TDB
period 1387.629205628102
3.80
1.988e-05
5.443e-08
d
yr
n .2594353005398501 3.7169e-09 deg/d
Q 2.910680685280497 2.7801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      6468 days (17.71 yr)  
   first obs. used      2002-02-15  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64867  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:26:19  

Additional Information
 Earth MOID = .98729 au 
 Jupiter MOID = 2.17317 au 
 T_jup = 3.467 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456536.5 (2013-Sep-01.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1947389821155437 5.6624e-08  
q 1.960484484984583 1.4463e-07 au
tp 2456456.234537984186
(2013-Jun-12.73453798)
0.00010661 TDB
node 216.6774469141611 4.7109e-05 deg
peri 283.9437091098023 5.3953e-05 deg
i 7.502247332242615 9.5736e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      6468 days (17.71 yr)  
   first obs. used      2002-02-15  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64867  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:26:19  

Additional Information
 Jupiter MOID = 2.17317 au 
 T_jup = 3.467 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.206327187940467E-15 -8.126847697215304E-15 -5.222476277954235E-13 5.60055240881185E-15 -9.22210930710997E-14 -1.24937451190623E-15
q -8.126847697215304E-15 2.091895997135981E-14 2.222880088520442E-12 -9.42270806446109E-15 4.450185116455112E-13 4.323527994157022E-15
tp -5.222476277954235E-13 2.222880088520442E-12 1.1366193649796E-8 5.232361374177883E-11 2.825567927325378E-9 5.545385740846919E-12
node 5.60055240881185E-15 -9.42270806446109E-15 5.232361374177883E-11 2.219291599071239E-9 -2.186357002918719E-9 3.364137738693734E-11
peri -9.22210930710997E-14 4.450185116455112E-13 2.825567927325378E-9 -2.186357002918719E-9 2.910975256042561E-9 -3.193490949794853E-11
i -1.24937451190623E-15 4.323527994157022E-15 5.545385740846919E-12 3.364137738693734E-11 -3.193490949794853E-11 9.165306391837404E-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 17.3   n/a MPO396765  

243331 (2008 TE21)          Discovered 2008-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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