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74980 (1999 TT236)
Classification: Main-belt Asteroid          SPK-ID: 2074980
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941792769057072 3.5385e-08  
a 2.29552089421789 1.0316e-08 au
q 1.849778306856718 8.5302e-08 au
i 6.586908999864526 3.6956e-06 deg
node 83.78755764912617 3.4182e-05 deg
peri 240.9792444159215 3.5631e-05 deg
M 22.93517116123714 1.1072e-05 deg
tp 2458919.568090566578
(2020-Mar-11.06809057)
3.8903e-05 TDB
period 1270.340961975207
3.48
8.5635e-06
2.345e-08
d
yr
n .2833884844902184 1.9104e-09 deg/d
Q 2.741263481579062 1.2319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      7771 days (21.28 yr)  
   first obs. used      1998-03-24  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58542  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:25:05  

Additional Information
 Earth MOID = .848166 au 
 Jupiter MOID = 2.59428 au 
 T_jup = 3.561 
[ 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 15.6   n/a MPO337823  

74980 (1999 TT236)          Discovered 1999-Oct-03 by CSS at Catalina
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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