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74911 (1999 TZ139)
Classification: Main-belt Asteroid          SPK-ID: 2074911
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 .09619239764971398 3.311e-08  
a 2.357630336982424 9.1104e-09 au
q 2.130844222096381 7.8167e-08 au
i 6.704308896765938 4.2827e-06 deg
node 24.88971648492072 3.2475e-05 deg
peri 242.8690880936678 4.0382e-05 deg
M 4.359211757876522 2.2781e-05 deg
tp 2458984.489036805145
(2020-May-14.98903680)
8.3691e-05 TDB
period 1322.245183371327
3.62
7.6642e-06
2.098e-08
d
yr
n .2722641795390083 1.5781e-09 deg/d
Q 2.584416451868466 9.9868e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      8130 days (22.26 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:52  

Additional Information
 Earth MOID = 1.12522 au 
 Jupiter MOID = 2.48327 au 
 T_jup = 3.538 
[ 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 15.5   n/a MPO436307  

74911 (1999 TZ139)          Discovered 1999-Oct-06 by LINEAR at Socorro
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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