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7226 Kryl (1984 QJ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2007226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1748330178104549 3.4934e-08  
a 3.21560418108703 1.6265e-08 au
q 2.653410398023668 1.1773e-07 au
i 2.418936911949884 4.052e-06 deg
node 124.8903300995013 9.1222e-05 deg
peri 267.6705672221239 9.1976e-05 deg
M 14.77226720088317 1.078e-05 deg
tp 2458914.075483673817
(2020-Mar-05.57548367)
6.3033e-05 TDB
period 2106.164575439439
5.77
1.598e-05
4.375e-08
d
yr
n .1709268136963552 1.2968e-09 deg/d
Q 3.777797964150392 1.9108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1912  
   data-arc span      25556 days (69.97 yr)  
   first obs. used      1950-08-14  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52892  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:48:29  

Additional Information
 Earth MOID = 1.66089 au 
 Jupiter MOID = 1.66304 au 
 T_jup = 3.165 
[ 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 12.7   n/a MPO502221  
diameter diameter 16.087 km 0.496 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7226 Kryl           Discovered 1984 Aug. 21 by A. Mrkos at Klet.
Named in memory of Karel Kryl (1944-1994), Czech singer and songwriter, from 1969 a resident of Germany working at Radio Free Europe. His songs were appreciated as a symbol of freedom by many people in the former Czechoslovakia. Name suggested by J. Ticha and M. Tichy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1984 QJ = 1982 HY2 = 1990 RE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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