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12135 Terlingen (3021 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012135
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08884100182930808 5.5336e-08  
a 3.157046101092635 3.2313e-08 au
q 2.876570962650255 1.6256e-07 au
i 12.2396381397981 7.5543e-06 deg
node 300.1024635177723 2.343e-05 deg
peri 255.8655057533426 4.8834e-05 deg
M 167.049693009248 4.169e-05 deg
tp 2456649.757312860910
0.0002411 JED
period 2048.895518479787
n .1757044206271231 2.6976e-09 deg/d
Q 3.437521239535016 3.5184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1037  
   data-arc span      20161 days (55.20 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5232  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:19:46  

Additional Information
 Earth MOID = 1.90772 au 
 Jupiter MOID = 1.7436 au 
 T_jup = 3.165 
[ 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 13.0 mag n/a MPO347621  
rotation period rot_per 5.9508 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

12135 Terlingen           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Leiden on Palomar Schmidt plates taken by T. Gehrels.
Dutch journalist Henk Terlingen (1941-1994) presented the Apollo moon missions on Dutch television. Since the 1960s, his broadcasts in collaboration with Chriet Titulaer promoted a great interest in astronomy and space science in the Netherlands. The name was suggested by C. E. Koppeschaar.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

[ show close-approach data ]
Alternate Designations
 3021 P-L = 1998 MF34 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-05 14:15 UT
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