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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545505279962626 4.2914e-08  
a 2.425390620263589 1.0299e-08 au
q 2.050545219304668 1.0461e-07 au
i 3.350399752020439 3.7753e-06 deg
node 131.7195971350755 0.00010138 deg
peri 309.7320743456583 0.00010304 deg
M 130.8115583129567 1.84e-05 deg
tp 2458499.180513762076
(2019-Jan-15.68051376)
6.9878e-05 TDB
period 1379.656487340972
3.78
8.7881e-06
2.406e-08
d
yr
n .2609345176159263 1.6621e-09 deg/d
Q 2.800236021222509 1.1891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      7504 days (20.54 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:34  

Additional Information
 Earth MOID = 1.06835 au 
 Jupiter MOID = 2.42183 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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