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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2551527750178304 6.7333e-08  
a 2.269352077046297 1.2163e-08 AU
q 1.690320597095457 1.5115e-07 AU
i 5.839735788740492 7.5502e-06 deg
node 234.8596447240873 6.8485e-05 deg
peri 98.4583346901569 7.0209e-05 deg
M 39.33934681316381 1.2888e-05 deg
tp 2456864.049261689751
(2014-Jul-25.54926169)
4.4692e-05 JED
period 1248.680259613569
3.42
1.0039e-05
2.749e-08
d
yr
n .2883043895571871 2.3178e-09 deg/d
Q 2.848383556997137 1.5266e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      580  
   data-arc span      8851 days (24.23 yr)  
   first obs. used      1990-09-18  
   last obs. used      2014-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58842  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:31:44  

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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