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469316 (1999 TG185)
Classification: Main-belt Asteroid          SPK-ID: 2469316
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2979801772984003 1.4275e-07  
a 2.647451756867615 2.4472e-08 au
q 1.858563612967242 3.8707e-07 au
i 12.32834796914189 1.2422e-05 deg
node 356.74638977 3.3498e-05 deg
peri 29.0674885706672 4.6871e-05 deg
M 285.0463582511167 2.4673e-05 deg
tp 2459328.090083795000
(2021-Apr-23.59008380)
0.0001108 TDB
period 1573.404939566622
4.31
2.1816e-05
5.973e-08
d
yr
n .2288031459334037 3.1724e-09 deg/d
Q 3.436339900767989 3.1764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 07:30:40  

Additional Information
 Earth MOID = .871071 au 
 Jupiter MOID = 2.08405 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457591.5 (2016-Jul-22.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .299792886532081 1.4345e-07  
q 1.851619212253624 3.8924e-07 au
tp 2457757.565387010288
(2017-Jan-04.06538701)
9.7291e-05 TDB
node 356.85519186687 3.3488e-05 deg
peri 29.17500030555957 4.6616e-05 deg
i 12.34174965366163 1.2427e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 07:30:40  

Additional Information
 Jupiter MOID = 2.08405 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.057813511486759E-14 -5.58002711481905E-14 -3.602710037060875E-12 2.196223391558007E-13 6.258260632233302E-13 -1.710851240405264E-13
q -5.58002711481905E-14 1.515085624345687E-13 1.028305697445368E-11 -6.021519827615624E-13 -1.535091518808569E-12 4.733909149024011E-13
tp -3.602710037060875E-12 1.028305697445368E-11 9.465533398308651E-9 -5.788066340156611E-11 2.944758261500751E-9 1.295480435334903E-10
node 2.196223391558007E-13 -6.021519827615624E-13 -5.788066340156611E-11 1.121432837600948E-9 -1.090263491947334E-9 -1.774353766455357E-10
peri 6.258260632233302E-13 -1.535091518808569E-12 2.944758261500751E-9 -1.090263491947334E-9 2.173078187231441E-9 2.007536133298274E-10
i -1.710851240405264E-13 4.733909149024011E-13 1.295480435334903E-10 -1.774353766455357E-10 2.007536133298274E-10 1.544202289639005E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO437768  

469316 (1999 TG185)          Discovered 1999-Sep-18 by LINEAR at Socorro
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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