Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03064062412037602 3.4324e-08  
a 2.89331939044943 1.308e-08 au
q 2.804666278546474 1.0234e-07 au
i 3.102382712958152 3.9546e-06 deg
node 117.2169424515006 8.2877e-05 deg
peri 348.2390710732365 0.000121 deg
M 343.2910659289078 8.7117e-05 deg
tp 2459283.933264755157
(2021-Mar-10.43326476)
0.00043506 TDB
period 1797.599726233949
4.92
1.219e-05
3.337e-08
d
yr
n .2002670531966623 1.3581e-09 deg/d
Q 2.981972502352387 1.3481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      22061 days (60.40 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48898  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:21  

Additional Information
 Earth MOID = 1.82143 au 
 Jupiter MOID = 2.04389 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 15:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin