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312997 (1999 TG245)
Classification: Main-belt Asteroid          SPK-ID: 2312997
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2183564468458503 6.2322e-08  
a 2.438136221951838 1.4504e-08 au
q 1.905753459600269 1.5295e-07 au
i 2.433943739563803 6.9458e-06 deg
node 4.411222073776171 0.00015626 deg
peri 354.1632884496779 0.00015689 deg
M 160.9751809267497 1.463e-05 deg
tp 2458378.712770844248
(2018-Sep-17.21277084)		 5.4733e-05 TDB
period 1390.546053170325
3.81		 1.2408e-05
3.397e-08		 d
yr
n .2588911019374231 2.3102e-09 deg/d
Q 2.970518984303407 1.7671e-08 au
   Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      7420 days (20.31 yr)  
   first obs. used      1999-10-07  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54881  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:49:24  

Additional Information
 Earth MOID = .902105 au 
 Jupiter MOID = 2.47938 au 
 T_jup = 3.469 
[ 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 17.3   n/a MPO460291  

312997 (1999 TG245)          Discovered 1999-Oct-07 by CSS at Catalina
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

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Alternate Designations
 1999 TG245 = 2003 VY9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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