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74896 (1999 TO121)
Classification: Main-belt Asteroid          SPK-ID: 2074896
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 .198922668571463 5.1185e-08  
a 2.386936472261242 1.1645e-08 au
q 1.912120699488482 1.1861e-07 au
i 2.443521512483013 3.8935e-06 deg
node 127.2916037188399 0.00010987 deg
peri 275.0134457232299 0.00011033 deg
M 197.0708755586176 1.2794e-05 deg
tp 2459610.115415463035
(2022-Jan-30.61541546)
5.0877e-05 TDB
period 1346.975565719984
3.69
9.8571e-06
2.699e-08
d
yr
n .267265427199916 1.9558e-09 deg/d
Q 2.861752245034002 1.3962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      8486 days (23.23 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:15  

Additional Information
 Earth MOID = .922582 au 
 Jupiter MOID = 2.54454 au 
 T_jup = 3.506 
[ 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 16.1   n/a MPO412637  

74896 (1999 TO121)          Discovered 1999-Oct-04 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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