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19703 (1999 TJ4)
Classification: Main-belt Asteroid          SPK-ID: 2019703
[ 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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0792004450821643 3.1043e-08  
a 2.980787677696206 1.6214e-08 au
q 2.744707966927236 8.8818e-08 au
i 6.311962972298795 3.4824e-06 deg
node 219.6632301970841 2.7888e-05 deg
peri 41.14138079288401 3.6349e-05 deg
M 156.1174132087246 2.4799e-05 deg
tp 2458385.338169171137
(2018-Sep-23.83816917)		 0.00012805 TDB
period 1879.727911620244
5.15		 1.5337e-05
4.199e-08		 d
yr
n .1915170795595069 1.5626e-09 deg/d
Q 3.216867388465177 1.7498e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1941  
   data-arc span      8738 days (23.92 yr)  
   first obs. used      1997-03-11  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:03:13  

Additional Information
 Earth MOID = 1.73186 au 
 Jupiter MOID = 1.82138 au 
 T_jup = 3.245 
[ 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 13.56   n/a E2021B10  

19703 (1999 TJ4)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 TJ4 = 1997 ED48 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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