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19370 Yukyung (1997 YY8)
Classification: Main-belt Asteroid          SPK-ID: 2019370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1662886100108621 3.4659e-08  
a 2.649961184916152 1.1585e-08 au
q 2.209302822893708 9.0544e-08 au
i 15.43907724066557 3.5558e-06 deg
node 89.76599012811435 1.6424e-05 deg
peri 332.0027201553925 2.1255e-05 deg
M 126.5407856060542 1.3479e-05 deg
tp 2458646.658210919063
(2019-Jun-12.15821092)
5.8314e-05 TDB
period 1575.642533861414
4.31
1.0333e-05
2.829e-08
d
yr
n .2284782190524845 1.4983e-09 deg/d
Q 3.090619546938596 1.3512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      4642  
   data-arc span      15184 days (41.57 yr)  
   first obs. used      1979-08-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:52:41  

Additional Information
 Earth MOID = 1.23359 au 
 Jupiter MOID = 2.22945 au 
 T_jup = 3.320 
[ 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 12.62   n/a E2021B10  
diameter diameter 8.448 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.185 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.271   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19370 Yukyung           Discovered 1997 Dec. 25 by NEAT at Haleakala.
Yuk Yung (b. 1946) is a Caltech planetary scientist who has studied atmospheric photochemistry and evolution, global climate change, and radiative transfer. His models of the chemistry of planetary atmospheres have been widely used to interpret the results from spacecraft missions.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-12-25Last Updated: 2016-01-04

[ show close-approach data ]
Alternate Designations
 1997 YY8 = 1994 AU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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