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118418 Yangmei (1999 TP18)
Classification: Main-belt Asteroid          SPK-ID: 2118418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040900409629702 3.8753e-08  
a 3.166929190832746 2.2969e-08 au
q 2.837283401632139 1.3107e-07 au
i 8.909219956704108 5.6075e-06 deg
node 208.8939706362906 2.2377e-05 deg
peri 127.2122847522489 3.3116e-05 deg
M 277.0264794907634 2.4602e-05 deg
tp 2459474.952755311290
(2021-Sep-17.45275531)
0.00014135 TDB
period 2058.524103398151
5.64
2.2395e-05
6.131e-08
d
yr
n .1748825769908269 1.9025e-09 deg/d
Q 3.496574980033352 2.5359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      9770 days (26.75 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5123  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:51:55  

Additional Information
 Earth MOID = 1.83993 au 
 Jupiter MOID = 1.9363 au 
 T_jup = 3.176 
[ 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 14.7   n/a MPO436569  
diameter diameter 5.488 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.44 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.085   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118418 Yangmei           Discovered 1999 Oct. 14 by Beijing Schmidt CCD Asteroid Program at Xinglong.
Yangmei (the Central Academy of Fine Arts, CAFA) is China's top institution of higher art education and a world-renowned art school. Since its establishment in 1918, CAFA has played a leading role in the development of Chinese art, as well as art education.
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 2018-05-29Last Updated: 2018-09-17

[ show close-approach data ]
Alternate Designations
 1999 TP18 = 2004 RS42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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