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19298 Zhongkeda (1996 SU4)
Classification: Main-belt Asteroid          SPK-ID: 2019298
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07553424052820284 5.5258e-08  
a 2.392727743427105 1.6148e-08 AU
q 2.211994870536578 1.3144e-07 AU
i 6.711245019940319 7.7401e-06 deg
node 20.14423704723005 4.3312e-05 deg
peri 122.6494700470146 6.5658e-05 deg
M 216.4193587918458 5.0665e-05 deg
tp 2457539.677477310087
(2016-May-31.17747731)
0.00019188 JED
period 1351.880658829429
3.70
1.3685e-05
3.747e-08
d
yr
n .2662956952958541 2.6957e-09 deg/d
Q 2.573460616317633 1.7367e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      8098 days (22.17 yr)  
   first obs. used      1992-09-23  
   last obs. used      2014-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52761  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:33:57  

Additional Information
 Earth MOID = 1.23222 AU 
 T_jup = 3.518 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO266057  
rotation period rot_per 78.5395 h n/a LCDB (Rev. 2015-July); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

19298 Zhongkeda           Discovered 1996 Sept. 20 by the Beijing Schmidt CCD Asteroid Program, Xinglong.
Zhongguokeda is the University of Science and Technology of China, a new type of university established by the Chinese Academy of Sciences after the founding of the Peoples Republic of China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

[ show close-approach data ]
Alternate Designations
 1996 SU4 = 1998 EL10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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