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JPL Small-Body Database Browser
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38684 Velehrad (2000 QK9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2038684
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962357501548581 3.8605e-08  
a 3.958201060353891 3.4211e-08 au
q 3.18146050601159 1.5647e-07 au
i 1.566620768142968 4.8421e-06 deg
node 281.3104867327022 0.00022552 deg
peri 168.6612457578041 0.0002262 deg
M 106.0015392891211 1.6324e-05 deg
tp 2458153.555651929100
(2018-Feb-04.05565193)
0.00012795 TDB
period 2876.372997508121
7.88
3.7292e-05
1.021e-07
d
yr
n .1251576204865912 1.6226e-09 deg/d
Q 4.734941614696191 4.0925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      11786 days (32.27 yr)  
   first obs. used      1987-01-01  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:02:59  

Additional Information
 Earth MOID = 2.19803 au 
 Jupiter MOID = .489639 au 
 T_jup = 3.024 
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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 13.3   n/a MPO324657  
diameter diameter 13.356 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

38684 Velehrad           Discovered 2000 Aug. 25 by P. Pravec and P. Kušnirák at Ondřejov.
According to tradition, Velehrad was the seat of the great Moravian princes and of Archbishop Methodius. Nowadays it is a famous church of pilgrimage, connected to the Cyril-Methodius tradition, although its actual connection to the historic locality is questionable.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

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Alternate Designations
 2000 QK9 = 1995 BD16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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