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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07535539915713863 3.8798e-08  
a 2.392756602387058 8.2763e-09 au
q 2.212449473528303 9.338e-08 au
i 6.710767147620174 4.1617e-06 deg
node 20.11793597767737 3.0684e-05 deg
peri 122.1970450240261 3.9177e-05 deg
M 135.0083311987234 2.3809e-05 deg
tp 2458889.504295160606
(2020-Feb-10.00429516)
8.946e-05 TDB
period 1351.90511668148
3.70
7.0141e-06
1.92e-08
d
yr
n .2662908776347349 1.3816e-09 deg/d
Q 2.573063731245814 8.9e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1531  
   data-arc span      10497 days (28.74 yr)  
   first obs. used      1992-09-23  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:47:09  

Additional Information
 Earth MOID = 1.23302 au 
 Jupiter MOID = 2.42439 au 
 T_jup = 3.518 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.77   n/a E2021B10  
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. 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:
[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

Alternate Designations
 1996 SU4 = 1998 EL10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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