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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2185641127069469 6.2325e-08  
a 2.43772162582509 1.4497e-08 au
q 1.904923161650093 1.5292e-07 au
i 2.434211633379131 6.9465e-06 deg
node 4.410887185488715 0.00015625 deg
peri 354.1689358730766 0.00015688 deg
M 212.754150735424 1.4787e-05 deg
tp 2459769.110863155569
(2022-Jul-08.61086316)
5.9274e-05 TDB
period 1390.191382360759
3.81
1.2401e-05
3.395e-08
d
yr
n .2589571512007682 2.3099e-09 deg/d
Q 2.970520090000087 1.7665e-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 = .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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