Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2551527892545957 7.2393e-08  
a 2.269352072053231 1.4786e-08 AU
q 1.690320561068152 1.6511e-07 AU
i 5.839730227953661 8.2722e-06 deg
node 234.8595889179732 8.045e-05 deg
peri 98.45838837881725 8.1853e-05 deg
M 39.33935200173958 1.5478e-05 deg
tp 2456864.049244143216
(2014-Jul-25.54924414)
5.3262e-05 JED
period 1248.680255492519
3.42
1.2204e-05
3.341e-08
d
yr
n .2883043905086853 2.8177e-09 deg/d
Q 2.848383583038308 1.8559e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      8750 days (23.96 yr)  
   first obs. used      1990-09-18  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5889  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:06:42  

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 14.9 mag n/a MPO263494  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-19 07:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin