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JPL Small-Body Database Browser
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68719 Jangyeongsil (2002 DW)
Classification: Main-belt Asteroid          SPK-ID: 2068719
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012000290241426 2.8505e-08  
a 2.467663025744822 1.225e-08 au
q 2.217935455917643 6.8258e-08 au
i 4.879809776941426 5.6629e-06 deg
node 171.7066305703802 4.7117e-05 deg
peri 124.7071604417941 5.8991e-05 deg
M 33.41540425069432 3.5053e-05 deg
tp 2458469.076984940600
0.00013762 TDB
period 1415.882479422674
n .2542583902491611 1.8933e-09 deg/d
Q 2.717390595572002 1.349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      10401 days (28.48 yr)  
   first obs. used      1991-06-08  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52406  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:10:00  

Additional Information
 Earth MOID = 1.20589 au 
 Jupiter MOID = 2.44638 au 
 T_jup = 3.474 
[ 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 15.9   n/a MPO400653  
diameter diameter 4.177 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 61.336 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.034   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

68719 Jangyeongsil           Discovered 2002 Feb. 16 by Y.-B. Jeon at Bohyunsan Optical Astronomy Observatory.
The fifteenth century in Korea is considered the century of scientific achievement. At the center was Jang Yeongsil (1390-1450). His scientific talent is represented in the invention of the water clock, Jagyeokru and Okru, the advancement of bronze-type printing technology and the development of astronomical instruments.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

Alternate Designations
 2002 DW = 1991 LG7 = 2000 WN47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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