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3623 Chaplin (1981 TG2)
Classification: Main-belt Asteroid          SPK-ID: 2003623
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.
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 2454800.5 (2008-Nov-30.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0879584810348238 1.0038e-07  
a 2.850893863700328 2.249e-08 AU
q 2.600133569857747 2.8769e-07 AU
i 3.072259596447028 8.5986e-06 deg
node 118.2862426308194 0.00017154 deg
peri 235.6041578882387 0.00017817 deg
M 263.5101168224326 5.1454e-05 deg
tp 2455271.747740068898
(2010-Mar-16.24774007)
0.00025297 JED
period 1758.206983343558
4.81
2.0805e-05
5.696e-08
d
yr
n .2047540496713265 2.4229e-09 deg/d
Q 3.101654157542909 2.4468e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1048  
   data-arc span      20369 days (55.77 yr)  
   first obs. used      1952-11-12  
   last obs. used      2008-08-19  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   quality code      0  
   fit RMS      .62519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2008-Sep-19 12:58:30  

Additional Information
 Earth MOID = 1.59486 AU 
 T_jup = 3.298 
[ 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 12.1 mag n/a PDS3 (MPC 28110)  
rotation period rot_per 8.361 h n/a IAU Lightcurve Data
(A.W. Harris, E-mail Mar. 2006)
Published Reference List:
[Birlan, M., Barucci, M.A., Angeli, C.A., Doressoundiram, A., De Sanctis, M. C.: 1996, Planet. Space Sci. 44, 555-558.]

3623 Chaplin (1981 TG2)           Discovered 1981-Oct-04 by Karachkina, L. G. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003--0-8-

Alternate Designations
 1981 TG2 = 1952 VK = 1962 WT1 = 1971 UM4 = 1976 UG1 = 1983 CT1 = 1988 DY 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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