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JPL Small-Body Database Browser
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20653 (1999 TN245)
Classification: Main-belt Asteroid          SPK-ID: 2020653
[ 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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09289052010254657 3.655e-08  
a 3.023171515855817 1.8989e-08 au
q 2.742347541388766 1.0779e-07 au
i 11.18275696247535 3.9585e-06 deg
node 101.6323996215339 2.0678e-05 deg
peri 130.3522757864459 2.9664e-05 deg
M 51.96673035887351 2.1708e-05 deg
tp 2458323.349606588108
(2018-Jul-23.84960659)		 0.00011555 TDB
period 1919.961885984701
5.26		 1.8089e-05
4.952e-08		 d
yr
n .1875037221456951 1.7666e-09 deg/d
Q 3.303995490322868 2.0753e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1927  
   data-arc span      15480 days (42.38 yr)  
   first obs. used      1977-07-17  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46046  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:45:35  

Additional Information
 Earth MOID = 1.74537 au 
 Jupiter MOID = 1.78487 au 
 T_jup = 3.210 
[ 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 12.3   n/a MPO435891  

20653 (1999 TN245)          Discovered 1999-Oct-07 by CSS at Catalina
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TN245 = 1978 TX7 = 1989 WG6 = 1989 YB8 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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