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JPL Small-Body Database Browser
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469319 (1999 TR254)
Classification: Main-belt Asteroid          SPK-ID: 2469319
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3451914763041505 6.5937e-08  
a 2.646581132989855 1.5272e-08 au
q 1.733003884534376 1.7791e-07 au
i 13.38819203463982 9.7513e-06 deg
node 160.8187610258081 3.3237e-05 deg
peri 225.90939739 3.9878e-05 deg
M 193.8965782241327 1.6481e-05 deg
tp 2459326.108436405820
(2021-Apr-21.60843641)
7.6493e-05 TDB
period 1572.628873706003
4.31
1.3612e-05
3.727e-08
d
yr
n .2289160564320789 1.9814e-09 deg/d
Q 3.560158381445335 2.0543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      6749 days (18.48 yr)  
   first obs. used      1999-09-14  
   last obs. used      2018-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70114  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:35:49  

Additional Information
 Earth MOID = .762179 au 
 Jupiter MOID = 1.98748 au 
 T_jup = 3.268 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO437768  

469319 (1999 TR254)          Discovered 1999-Sep-14 by LINEAR at Socorro
Reference: Last Updated: 2016-08-22

Alternate Designations
 1999 TR254 = 2012 TM320 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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