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12151 Oranje-Nassau (1220 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2012151
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .141019481232809 5.5348e-08  
a 2.429498356070525 1.1513e-08 au
q 2.086891758241497 1.3821e-07 au
i 1.45735370535272 5.0779e-06 deg
node 288.9034810968047 0.00017738 deg
peri 220.5781852854386 0.00017808 deg
M 22.30985682064277 1.6794e-05 deg
tp 2457514.782869600139
6.4422e-05 JED
period 1383.162930718485
n .2602730249667677 1.8501e-09 deg/d
Q 2.772104953899553 1.3136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1253  
   data-arc span      16461 days (45.07 yr)  
   first obs. used      1971-03-24  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49348  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:13:30  

Additional Information
 Earth MOID = 1.09724 au 
 Jupiter MOID = 2.23488 au 
 T_jup = 3.494 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO350898  

12151 Oranje-Nassau           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Willem I, Prince van Oranje-Nassau (1533-1584), led the Netherlands provinces in their war of liberation against Spain during 1568-1648. "The Father of the Fatherland" was assassinated and is entombed in the Nieuwe Kerk in Delft. The Dutch national anthem, the Wilhelmus, was written in his honor.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 1220 T-1 = 1982 BH2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-05 08:34 UT
(server date/time)  
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