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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07568214892954062 4.0707e-08  
a 2.392407262465403 9.1104e-09 au
q 2.211344739727382 9.8869e-08 au
i 6.710877254611082 4.4837e-06 deg
node 20.12626272793858 3.1783e-05 deg
peri 122.0744540330421 4.1417e-05 deg
M 29.62528842902237 2.6272e-05 deg
tp 2458889.272754673515
(2020-Feb-09.77275467)
9.8627e-05 TDB
period 1351.609062422076
3.70
7.7205e-06
2.114e-08
d
yr
n .2663492055571764 1.5214e-09 deg/d
Q 2.573469785203425 9.7999e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1284  
   data-arc span      9995 days (27.36 yr)  
   first obs. used      1992-09-23  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:45:29  

Additional Information
 Earth MOID = 1.23125 au 
 Jupiter MOID = 2.42591 au 
 T_jup = 3.518 
[ 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 MPO266057  
diameter diameter 2.750 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 78.540 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.370   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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