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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945702701062466 3.5711e-08  
a 2.295671530556751 1.0328e-08 au
q 1.849002100781103 8.5945e-08 au
i 6.587358190793577 3.747e-06 deg
node 83.79017797961505 3.4777e-05 deg
peri 241.0812571933376 3.6209e-05 deg
M 269.5330530935147 1.0862e-05 deg
tp 2458919.764391171759
(2020-Mar-11.26439117)
3.8916e-05 TDB
period 1270.466007221848
3.48
8.5733e-06
2.347e-08
d
yr
n .2833605920611909 1.9122e-09 deg/d
Q 2.742340960332398 1.2337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      7718 days (21.13 yr)  
   first obs. used      1998-03-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59709  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:20  

Additional Information
 Earth MOID = .84659 au 
 Jupiter MOID = 2.5913 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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