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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05731395986243621 1.2896e-08  
a 2.991833154462494 1.4957e-08 au
q 2.820359349132525 3.83e-08 au
i 11.09326103729731 1.0024e-06 deg
node 76.02488368560655 2.7575e-06 deg
peri 188.8583647917797 2.2626e-05 deg
M 62.22822459493265 2.0167e-05 deg
tp 2458873.769714342721
(2020-Jan-25.26971434)
0.0001057 TDB
period 1890.185741313897
5.18
1.4174e-05
3.881e-08
d
yr
n .1904574731104249 1.4282e-09 deg/d
Q 3.163306959792463 1.5814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2273  
   data-arc span      14623 days (40.04 yr)  
   first obs. used      1980-11-29  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45409  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:48:09  

Additional Information
 Earth MOID = 1.80355 au 
 Jupiter MOID = 1.88712 au 
 T_jup = 3.225 
[ 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 12.83   n/a E2021B10  
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 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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