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3623 Chaplin (1981 TG2)
Classification: Main-belt Asteroid          SPK-ID: 2003623
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08326438405393535 1.1765e-08  
a 2.853217041445972 1.0054e-08 au
q 2.615645681917782 3.1451e-08 au
i 3.072117783686018 4.8992e-07 deg
node 118.104105041818 8.1644e-06 deg
peri 235.3351131725626 1.6154e-05 deg
M 83.90902630600208 1.2437e-05 deg
tp 2458790.194988500585
(2019-Nov-02.69498850)
6.0812e-05 TDB
period 1760.356550928344
4.82
9.3048e-06
2.548e-08
d
yr
n .2045040249432139 1.081e-09 deg/d
Q 3.090788400974162 1.0891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3239  
   data-arc span      24969 days (68.36 yr)  
   first obs. used      1952-11-12  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:07:14  

Additional Information
 Earth MOID = 1.6099 au 
 Jupiter MOID = 2.27651 au 
 T_jup = 3.297 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.11   n/a MPCxxxxx  
diameter diameter 9.887 km 1.614 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.361 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Birlan, M.; Barucci, M.A.; Angeli, C.A.; Doressoundiram, A.; De Sanctis, M.C. (1996) Planet. Space Sci. 44, 555-558.]
[Marchis, F.; Enriquez, J.E.; Emery, J.P.; Mueller, M.; et al. (2012) Icarus 221, 1130-1161.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.263   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3623 Chaplin (1981 TG2)          Discovered 1981-Oct-04 by Karachkina, L. G. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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