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74931 (1999 TA159)
Classification: Main-belt Asteroid          SPK-ID: 2074931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1293632088571173 4.2716e-08  
a 2.423641770944267 1.2452e-08 au
q 2.11011169433477 1.007e-07 au
i 3.665139897758039 4.1429e-06 deg
node 225.5335192908345 7.4637e-05 deg
peri 73.37870060752149 7.7603e-05 deg
M 222.6815386331005 2.3105e-05 deg
tp 2459526.187315589166
(2021-Nov-07.68731559)
9.0905e-05 TDB
period 1378.164536132194
3.77
1.0621e-05
2.908e-08
d
yr
n .2612169959113422 2.0131e-09 deg/d
Q 2.737171847553764 1.4063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      9931 days (27.19 yr)  
   first obs. used      1992-11-26  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60303  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:24:22  

Additional Information
 Earth MOID = 1.09799 au 
 Jupiter MOID = 2.4475 au 
 T_jup = 3.498 
[ show covariance matrix ]

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 16.3   n/a MPO453162  

74931 (1999 TA159)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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