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442639 (2012 TB69)
Classification: Main-belt Asteroid          SPK-ID: 2442639
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1691319980197205 1.0506e-07  
a 2.221594865398802 3.0096e-08 au
q 1.845852087023551 2.5039e-07 au
i 2.976934339955545 6.9926e-06 deg
node 192.6830146930687 0.00013881 deg
peri 145.8484234892738 0.00014306 deg
M 148.7864248485497 2.7127e-05 deg
tp 2458500.630626316735
(2019-Jan-17.13062632)
8.8895e-05 TDB
period 1209.471729085165
3.31
2.4577e-05
6.729e-08
d
yr
n .297650611703261 6.0484e-09 deg/d
Q 2.597337643774054 3.5186e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      5726 days (15.68 yr)  
   first obs. used      2002-10-10  
   last obs. used      2018-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68789  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:42:25  

Additional Information
 Earth MOID = .83787 au 
 Jupiter MOID = 2.78232 au 
 T_jup = 3.628 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457308.5 (2015-Oct-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170005567315809 1.0527e-07  
q 1.843704816880263 2.509e-07 au
tp 2457290.959644359174
(2015-Sep-25.45964436)
8.7126e-05 TDB
node 192.703009624215 0.00013878 deg
peri 145.759000801054 0.00014298 deg
i 2.976790107667898 6.9962e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      5726 days (15.68 yr)  
   first obs. used      2002-10-10  
   last obs. used      2018-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68789  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:42:25  

Additional Information
 Jupiter MOID = 2.78232 au 
 T_jup = 3.628 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.108195325106863E-14 -2.633751327520209E-14 2.921923210420455E-12 -1.663465601583097E-13 1.784671596284353E-12 -1.219565736918825E-14
q -2.633751327520209E-14 6.295295721136789E-14 -6.730281203236072E-12 3.88525282636594E-13 -4.156395529545455E-12 3.029831894436323E-14
tp 2.921923210420455E-12 -6.730281203236072E-12 7.590947391010626E-9 -1.02952458772847E-10 2.97842748198784E-9 8.410711737260448E-12
node -1.663465601583097E-13 3.88525282636594E-13 -1.02952458772847E-10 1.925978755535134E-8 -1.927995946378131E-8 -4.048484455545756E-11
peri 1.784671596284353E-12 -4.156395529545455E-12 2.97842748198784E-9 -1.927995946378131E-8 2.04424444450496E-8 4.282804216330249E-11
i -1.219565736918825E-14 3.029831894436323E-14 8.410711737260448E-12 -4.048484455545756E-11 4.282804216330249E-11 4.894748265734427E-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 18.4   n/a MPO450446  

442639 (2012 TB69)          Discovered 2008-May-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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