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16504 (1990 TR5)
Classification: Main-belt Asteroid          SPK-ID: 2016504
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2551527898574322 6.9837e-08  
a 2.269352073056361 1.3049e-08 AU
q 1.690320560447284 1.5786e-07 AU
i 5.839734519098927 7.7057e-06 deg
node 234.8596164855434 7.8388e-05 deg
peri 98.45836179359031 7.9844e-05 deg
M 39.33935058088822 1.3599e-05 deg
tp 2456864.049248981045
(2014-Jul-25.54924898)
4.7026e-05 JED
period 1248.680256320457
3.42
1.077e-05
2.949e-08
d
yr
n .2883043903175248 2.4867e-09 deg/d
Q 2.848383585665439 1.6378e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      8779 days (24.04 yr)  
   first obs. used      1990-09-18  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58201  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:32:41  

Additional Information
 Earth MOID = .693427 AU 
 T_jup = 3.563 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO309282  

16504 (1990 TR5)          Discovered 1990-Oct-09 by McNaught, R. H. at Siding Spring (413)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 TR5 = 1997 WZ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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