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74841 (1999 TH36)
Classification: Main-belt Asteroid          SPK-ID: 2074841
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07486580714725741 4.7256e-08  
a 2.255887328291305 8.707e-09 au
q 2.086998502625506 1.0906e-07 au
i 10.38044149351567 5.6507e-06 deg
node 304.8498258864397 2.2636e-05 deg
peri 153.568588413024 4.3695e-05 deg
M 321.693263956162 3.8532e-05 deg
tp 2459132.188297297737
(2020-Oct-09.68829730)
0.00013279 TDB
period 1237.583566841409
3.39
7.165e-06
1.962e-08
d
yr
n .2908894475051901 1.6841e-09 deg/d
Q 2.424776153957104 9.3589e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1032  
   data-arc span      7454 days (20.41 yr)  
   first obs. used      1999-07-23  
   last obs. used      2019-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55133  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:22:54  

Additional Information
 Earth MOID = 1.10825 au 
 Jupiter MOID = 2.67673 au 
 T_jup = 3.598 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457033.5 (2015-Jan-11.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0745602851076608 4.697e-08  
q 2.087545438155238 1.0836e-07 au
tp 2456654.714591650713
(2013-Dec-28.21459165)
0.00012831 TDB
node 304.9209297025957 2.265e-05 deg
peri 152.9326766864005 4.3992e-05 deg
i 10.37630162026442 5.6499e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1032  
   data-arc span      7454 days (20.41 yr)  
   first obs. used      1999-07-23  
   last obs. used      2019-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55133  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:22:54  

Additional Information
 Jupiter MOID = 2.67673 au 
 T_jup = 3.598 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.206210045443502E-15 -5.076620654378732E-15 1.656927231794949E-12 -6.133033328650194E-15 5.64810520976182E-13 -3.896808427169984E-16
q -5.076620654378732E-15 1.174253243085259E-14 -3.382135671346588E-12 1.316557167938961E-14 -1.173409122341105E-12 1.540027463396962E-15
tp 1.656927231794949E-12 -3.382135671346588E-12 1.646371082180757E-8 -3.045317434832768E-11 4.846707593541434E-9 1.116186066629043E-11
node -6.133033328650194E-15 1.316557167938961E-14 -3.045317434832768E-11 5.130131580856772E-10 -5.13072824755567E-10 4.433118838287396E-11
peri 5.64810520976182E-13 -1.173409122341105E-12 4.846707593541434E-9 -5.13072824755567E-10 1.935299579862295E-9 -4.046555070721458E-11
i -3.896808427169984E-16 1.540027463396962E-15 1.116186066629043E-11 4.433118838287396E-11 -4.046555070721458E-11 3.1920922860531E-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 14.8   n/a MPO341160  

74841 (1999 TH36)          Discovered 1999-Oct-11 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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