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74920 (1999 TU144)
Classification: Main-belt Asteroid          SPK-ID: 2074920
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 .145487057294203 4.6048e-08  
a 2.229254633331488 9.7637e-09 au
q 1.904926936768622 1.0769e-07 au
i 4.934179857518949 6.1664e-06 deg
node 10.19385249159192 4.6761e-05 deg
peri 78.55780694525744 5.2319e-05 deg
M 8.76320814644402 2.1698e-05 deg
tp 2458970.906347465197
(2020-May-01.40634747)
7.325e-05 TDB
period 1215.732267737167
3.33
7.987e-06
2.187e-08
d
yr
n .2961178291911797 1.9454e-09 deg/d
Q 2.553582329894354 1.1184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      7452 days (20.40 yr)  
   first obs. used      1999-09-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:49  

Additional Information
 Earth MOID = .928532 au 
 Jupiter MOID = 2.63569 au 
 T_jup = 3.624 
[ 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 16.3   n/a MPO493392  

74920 (1999 TU144)          Discovered 1999-Oct-07 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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