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74936 (1999 TD172)
Classification: Main-belt Asteroid          SPK-ID: 2074936
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04591245891366928 4.1516e-08  
a 2.338054415254831 1.1219e-08 au
q 2.230708587976521 9.6218e-08 au
i 7.178693957394049 5.1556e-06 deg
node 51.77927725981493 2.9559e-05 deg
peri 110.1192225719117 6.5828e-05 deg
M 153.203775714654 5.6373e-05 deg
tp 2458444.791145658295
(2018-Nov-22.29114566)
0.0002051 TDB
period 1305.811078283225
3.58
9.3987e-06
2.573e-08
d
yr
n .2756907227906957 1.9843e-09 deg/d
Q 2.445400242533141 1.1734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      9717 days (26.60 yr)  
   first obs. used      1992-11-24  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:24:22  

Additional Information
 Earth MOID = 1.24786 au 
 Jupiter MOID = 2.53163 au 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO474635  

74936 (1999 TD172)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TD172 = 2001 FG68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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