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19873 Chentao (6632 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2019873
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03076985044346407 3.4258e-08  
a 2.893692657983142 1.3121e-08 au
q 2.804654167667651 1.0218e-07 au
i 3.102388622266465 3.9537e-06 deg
node 117.2167425921376 8.2746e-05 deg
peri 348.0568347061447 0.00012062 deg
M 22.7102673516657 8.6732e-05 deg
tp 2459283.078136977999
(2021-Mar-09.57813698)
0.00043309 TDB
period 1797.947600336174
4.92
1.2229e-05
3.348e-08
d
yr
n .2002283047251702 1.3618e-09 deg/d
Q 2.982731148298634 1.3525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1458  
   data-arc span      22137 days (60.61 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-05-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48871  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:10:33  

Additional Information
 Earth MOID = 1.82186 au 
 Jupiter MOID = 2.04298 au 
 T_jup = 3.287 
[ 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 14.17   n/a MPCxxxxx  

19873 Chentao           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Tao Chen (b. 1980) of Suzhou, Jiangsu, is a well-known amateur astronomer who codiscovered comet C/2008 C1 (Chen-Gao) and who helped organize the fourth International Workshop on Cometary Astronomy in Shanghai in July 2009. The name was suggested by D. W. E. Green.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091004/MPCPages.arcLast Updated: 2009-10-06

Alternate Designations
 6632 P-L = 1987 BE1 = 2000 VK17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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