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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2180815266826191 6.2325e-08  
a 2.438585798570842 1.49e-08 au
q 1.906775284671959 1.5306e-07 au
i 2.433550569727258 7.0085e-06 deg
node 4.424635874707509 0.00015804 deg
peri 354.1815831773601 0.00015877 deg
M 57.42224269186614 1.4842e-05 deg
tp 2458378.637891059861
(2018-Sep-17.13789106)
5.6915e-05 TDB
period 1390.930682506478
3.81
1.2748e-05
3.49e-08
d
yr
n .2588195116605485 2.3722e-09 deg/d
Q 2.970396312469725 1.815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      7008 days (19.19 yr)  
   first obs. used      1999-10-07  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:29:41  

Additional Information
 Earth MOID = .902249 au 
 Jupiter MOID = 2.47594 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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