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23758 Guyuzhou (1998 KG51)
Classification: Main-belt Asteroid          SPK-ID: 2023758
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363155680833176 4.1235e-08  
a 2.337541427304969 7.2141e-09 au
q 2.018898139723603 9.7515e-08 au
i 6.05946444971932 4.4472e-06 deg
node 162.8589129793923 3.315e-05 deg
peri 183.9758282283357 3.5483e-05 deg
M 330.0139254713695 1.3572e-05 deg
tp 2459109.231284054550
(2020-Sep-16.73128405)
4.9345e-05 TDB
period 1305.381343672186
3.57
6.043e-06
1.654e-08
d
yr
n .2757814808255793 1.2767e-09 deg/d
Q 2.656184714886335 8.1975e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1567  
   data-arc span      14163 days (38.78 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:02:48  

Additional Information
 Earth MOID = 1.01186 au 
 Jupiter MOID = 2.74548 au 
 T_jup = 3.547 
[ 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 14.6   n/a MPO337459  
rotation period rot_per 3.12 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.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

23758 Guyuzhou           Discovered 1998 May 23 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Gu Yuzhou (b. 1989) was awarded second place in the 2007 Intel International Science and Engineering Fair for his plant sciences team project. He attends the No.2 Secondary School attached to ECNU, Shanghai, China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070828/MPCPages.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 1998 KG51 = 1981 UD22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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