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74875 (1999 TH100)
Classification: Main-belt Asteroid          SPK-ID: 2074875
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391816704290456 3.651e-08  
a 2.320038705882128 8.2993e-09 au
q 1.997131843337412 8.5684e-08 au
i 4.819622100018063 3.2104e-06 deg
node 82.05445594626153 4.4838e-05 deg
peri 240.08208619664 4.6424e-05 deg
M 338.0702993337675 1.0899e-05 deg
tp 2459079.126958341926
(2020-Aug-17.62695834)
3.9019e-05 TDB
period 1290.74744037335
3.53
6.9259e-06
1.896e-08
d
yr
n .2789081649434607 1.4966e-09 deg/d
Q 2.642945568426844 9.4544e-09 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      7736 days (21.18 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55504  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:09:29  

Additional Information
 Earth MOID = .989612 au 
 Jupiter MOID = 2.64238 au 
 T_jup = 3.561 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457604.5 (2016-Aug-04.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386521009518515 3.6458e-08  
q 1.997692559979536 8.5465e-08 au
tp 2457789.962319982755
(2017-Feb-05.46231998)
4.0827e-05 TDB
node 82.05881187359168 4.4835e-05 deg
peri 240.3999004915298 4.644e-05 deg
i 4.820126836549325 3.2101e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      7736 days (21.18 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55504  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:09:29  

Additional Information
 Jupiter MOID = 2.64238 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.329149514577464E-15 -3.105016746094959E-15 4.968485536797592E-15 1.237947288964391E-14 -2.963018351368834E-14 -2.650374029803115E-15
q -3.105016746094959E-15 7.304241476673067E-15 -1.020081891802093E-13 -2.864950269897443E-14 4.027872051116935E-14 6.360310439103247E-15
tp 4.968485536797592E-15 -1.020081891802093E-13 1.666852530824884E-9 1.67128123883278E-12 5.074708300829977E-10 -8.671639721135114E-14
node 1.237947288964391E-14 -2.864950269897443E-14 1.67128123883278E-12 2.010138875174281E-9 -2.002450826954623E-9 2.696006404958044E-11
peri -2.963018351368834E-14 4.027872051116935E-14 5.074708300829977E-10 -2.002450826954623E-9 2.156711310001453E-9 -2.686802809316582E-11
i -2.650374029803115E-15 6.360310439103247E-15 -8.671639721135114E-14 2.696006404958044E-11 -2.686802809316582E-11 1.030504079108929E-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 16.0   n/a MPO436307  

74875 (1999 TH100)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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