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JPL Small-Body Database Browser
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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03047816528391059 3.483e-08  
a 2.892591960727121 1.377e-08 au
q 2.804431064849169 1.0322e-07 au
i 3.102379008649776 4.1447e-06 deg
node 117.2175232416407 8.9705e-05 deg
peri 348.5846840916024 0.00013141 deg
M 302.8887201388947 9.5541e-05 deg
tp 2459285.568073766840
(2021-Mar-12.06807377)
0.00047731 TDB
period 1796.921848112059
4.92
1.2831e-05
3.513e-08
d
yr
n .2003426027560603 1.4305e-09 deg/d
Q 2.980752856605073 1.4189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1309  
   data-arc span      21655 days (59.29 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50845  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:12:02  

Additional Information
 Earth MOID = 1.82133 au 
 Jupiter MOID = 2.04521 au 
 T_jup = 3.287 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO412334  

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

[ show close-approach data ]
Alternate Designations
 6632 P-L = 1987 BE1 = 2000 VK17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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