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18242 Peebles (2102 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2018242
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1469749465865377 8.1767e-08  
a 2.354468336378022 1.743e-08 AU
q 2.008420478399168 1.9564e-07 AU
i 2.542569769760143 7.3938e-06 deg
node 23.03355298857992 0.00015901 deg
peri 143.0094008908917 0.00016068 deg
M 296.907351256884 2.807e-05 deg
tp 2457031.767160308438
(2015-Jan-09.26716031)
0.00010358 JED
period 1319.586027367757
3.61
1.4653e-05
4.012e-08
d
yr
n .2728128310953017 3.0295e-09 deg/d
Q 2.700516194356876 1.9992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      545  
   data-arc span      14751 days (40.39 yr)  
   first obs. used      1973-09-24  
   last obs. used      2014-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55436  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:10:01  

Additional Information
 Earth MOID = 1.01645 AU 
 T_jup = 3.539 
[ 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 15.4 mag n/a MPO279706  

18242 Peebles           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Princeton theoretical cosmologist Jim Peebles (b. 1935) plays a central role in the understanding of the evolution and structure of the universe. His studies of the evolution of matter in the earliest moments of the universe were critical in the establishment of the Big Bang theory as a widely accepted hypothesis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

Alternate Designations
 2102 T-2 = 1995 WO10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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