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16951 Carolus Quartus (1998 KJ)
Classification: Main-belt Asteroid          SPK-ID: 2016951
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .0575150905009708 4.5908e-08  
a 2.994218878204569 2.0269e-08 au
q 2.822006108444918 1.4655e-07 au
i 11.09868989270506 4.4742e-06 deg
node 76.06573891137609 2.0277e-05 deg
peri 189.7468507992523 4.1994e-05 deg
M 23.28730465635805 3.8005e-05 deg
tp 2458878.083356573304
(2020-Jan-29.58335657)
0.00019963 TDB
period 1892.4470772352
5.18
1.9216e-05
5.261e-08
d
yr
n .1902298903523091 1.9316e-09 deg/d
Q 3.16643164796422 2.1435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1793  
   data-arc span      14042 days (38.44 yr)  
   first obs. used      1980-11-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46848  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:28:22  

Additional Information
 Earth MOID = 1.80696 au 
 Jupiter MOID = 1.88674 au 
 T_jup = 3.224 
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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 12.8   n/a MPO473992  
diameter diameter 9.611 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.174   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16951 Carolus Quartus           Discovered 1998 May 19 by P. Pravec at Ondřejov.
Karel IV (1316-1378), king of Bohemia and Holy Roman Emperor, supported cultural and scientific advancement. Charles University, which he founded in Prague, was the first university in central Europe. During his 30-year reign the Czech lands did not experience the hardship of wars. The name was suggested by M. Juřík.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1998 KJ = 1980 WB4 = 1985 VE5 
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