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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1887432653164425 4.2155e-08  
a 2.699047261683157 1.405e-08 au
q 2.189620268269675 1.1875e-07 au
i 11.04653634575855 6.1549e-06 deg
node 209.1527403243251 2.0348e-05 deg
peri 80.68913767592296 2.7089e-05 deg
M 357.1750354145238 1.9117e-05 deg
tp 2459213.209388864981
(2020-Dec-29.70938887)
8.6033e-05 TDB
period 1619.623840566522
4.43
1.2646e-05
3.462e-08
d
yr
n .2222738335798249 1.7356e-09 deg/d
Q 3.208474255096638 1.6702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      8142 days (22.29 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52333  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:42  

Additional Information
 Earth MOID = 1.20492 au 
 Jupiter MOID = 2.05725 au 
 T_jup = 3.316 
[ 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 15.44   n/a E2021B10  

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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