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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07596200445537536 5.0426e-08  
a 2.393031905559892 1.4299e-08 au
q 2.211252405287896 1.2266e-07 au
i 6.71195065876057 6.6238e-06 deg
node 20.14037174623702 4.2684e-05 deg
peri 122.7560360441486 6.0099e-05 deg
M 16.12227613263322 4.235e-05 deg
tp 2457539.945696282493
(2016-May-31.44569628)
0.00015902 JED
period 1352.138442423635
3.70
1.2119e-05
3.318e-08
d
yr
n .2662449263366253 2.3864e-09 deg/d
Q 2.574811405831888 1.5386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      8607 days (23.56 yr)  
   first obs. used      1992-09-23  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51975  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:32:05  

Additional Information
 Earth MOID = 1.22978 au 
 Jupiter MOID = 2.42763 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. 2016-February); 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. (2016) Astron. J. 150, A75.]

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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