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29473 Krejci (1997 UE8)
Classification: Main-belt Asteroid          SPK-ID: 2029473
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09583738520030607 4.9456e-08  
a 2.74010259237633 1.2717e-08 au
q 2.477498324742403 1.3879e-07 au
i 1.53840493025965 4.5924e-06 deg
node 48.27035486112336 0.00019203 deg
peri 291.8541290868347 0.00019344 deg
M 45.4561329467533 2.3063e-05 deg
tp 2458791.311094313918
(2019-Nov-03.81109431)
0.00010595 TDB
period 1656.71827243211
4.54
1.1534e-05
3.158e-08
d
yr
n .2172970540558532 1.5128e-09 deg/d
Q 3.002706860010258 1.3936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      10319 days (28.25 yr)  
   first obs. used      1991-06-03  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61143  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:47:54  

Additional Information
 Earth MOID = 1.46927 au 
 Jupiter MOID = 2.32961 au 
 T_jup = 3.343 
[ 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 15.3   n/a MPO351031  

29473 Krejčí           Discovered 1997 Oct. 21 by P. Pravec and L. Šarounová at Ondřejov.
František Krejčí (1901-1984), an honorary member of the Czechoslovak Astronomical Society, in 1963 founded the public observatory in Karlovy Vary and led it for 20 years, including its rebuilding after a disastrous fire in 1971. He operated an all-sky patrol camera for the European fireball network.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1997 UE8 = 2000 HF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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