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JPL Small-Body Database Browser
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74944 (1999 TN178)
Classification: Main-belt Asteroid          SPK-ID: 2074944
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547266825766029 4.2901e-08  
a 2.425826233716855 1.0984e-08 au
q 2.050486188066551 1.0472e-07 au
i 3.35022610907878 4.0798e-06 deg
node 131.7190548305183 0.00010148 deg
peri 309.8024308016448 0.00010356 deg
M 26.36211234255235 1.9442e-05 deg
tp 2458499.443171366371
(2019-Jan-15.94317137)
7.4503e-05 TDB
period 1380.028194834105
3.78
9.3731e-06
2.566e-08
d
yr
n .2608642354899685 1.7718e-09 deg/d
Q 2.801166279367159 1.2684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      7062 days (19.33 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53562  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:01  

Additional Information
 Earth MOID = 1.06821 au 
 Jupiter MOID = 2.42156 au 
 T_jup = 3.492 
[ 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 16.0   n/a MPO453162  

74944 (1999 TN178)          Discovered 1999-Oct-10 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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