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19874 Liudongyan (6775 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2019874
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016830855628274 2.9819e-08  
a 2.354069684368156 7.1523e-09 au
q 1.879293646794875 7.0542e-08 au
i 1.523652191270506 3.0342e-06 deg
node 102.6770724262672 0.00017952 deg
peri 331.7061663961387 0.00017985 deg
M 189.3384662656749 1.1795e-05 deg
tp 2459825.903838162436
(2022-Sep-03.40383816)
4.4326e-05 TDB
period 1319.250898617662
3.61
6.0124e-06
1.646e-08
d
yr
n .2728821336238734 1.2436e-09 deg/d
Q 2.828845721941438 8.5948e-09 au
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      21822 days (59.75 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:22  

Additional Information
 Earth MOID = .894013 au 
 Jupiter MOID = 2.4421 au 
 T_jup = 3.527 
[ 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 16.42   n/a E2021B10  

19874 Liudongyan           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Dongyan Liu (b. 1987) of Suzhou, Jiangsu, a student majoring in English at Suzhou University, served as interpreter for the International Workshop on Cometary Astronomy and a total solar eclipse expedition in China 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
 6775 P-L = 2000 VK16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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