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JPL Small-Body Database Browser
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66747 (1999 TO139)
Classification: Main-belt Asteroid          SPK-ID: 2066747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884522785411381 4.4978e-08  
a 2.698013753636796 2.2611e-08 au
q 2.189566914228613 1.2207e-07 au
i 11.04811190896103 6.7617e-06 deg
node 209.16502064 2.7349e-05 deg
peri 80.72721241265366 3.8024e-05 deg
M 312.6566033539426 3.4611e-05 deg
tp 2459213.373488885396
(2020-Dec-29.87348889)
0.00015758 TDB
period 1618.693660103588
4.43
2.0349e-05
5.571e-08
d
yr
n .2224015629844142 2.7958e-09 deg/d
Q 3.206460593044979 2.6872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      7923 days (21.69 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:02:33  

Additional Information
 Earth MOID = 1.2067 au 
 Jupiter MOID = 2.06006 au 
 T_jup = 3.317 
[ 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 15.3   n/a MPO436248  

66747 (1999 TO139)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TO139 = 1998 KJ31 = 2002 GU39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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