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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2185640964791808 5.9883e-08  
a 2.4377216247495 1.439e-08 au
q 1.904923200368365 1.474e-07 au
i 2.434209391282617 6.6602e-06 deg
node 4.410943516168287 0.00014862 deg
peri 354.1688842999954 0.00014923 deg
M 212.754147349591 1.4384e-05 deg
tp 2459769.110875854117
(2022-Jul-08.61087585)
5.7913e-05 TDB
period 1390.191381440673
3.81
1.231e-05
3.37e-08
d
yr
n .2589571513721567 2.293e-09 deg/d
Q 2.970520049130636 1.7535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1999-10-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55099  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:32:12  

Additional Information
 Earth MOID = .899621 au 
 Jupiter MOID = 2.48025 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

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