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21546 Konermann (1998 QH34)
Classification: Main-belt Asteroid          SPK-ID: 2021546
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02236290638528801 4.3869e-08  
a 2.655643171624704 1.4616e-08 au
q 2.596255271984932 1.173e-07 au
i 14.69679476839124 5.7783e-06 deg
node 335.3180277164235 1.635e-05 deg
peri 227.3146141513388 0.0001167 deg
M 140.131370608577 0.00011674 deg
tp 2458385.201471924457
(2018-Sep-23.70147192)
0.00051185 TDB
period 1580.712934906795
4.33
1.305e-05
3.573e-08
d
yr
n .2277453369616583 1.8802e-09 deg/d
Q 2.715031071264477 1.4943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      10385 days (28.43 yr)  
   first obs. used      1992-02-28  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:44:49  

Additional Information
 Earth MOID = 1.61359 au 
 Jupiter MOID = 2.28917 au 
 T_jup = 3.341 
[ 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 13.9   n/a MPO395210  
diameter diameter 4.791 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.255   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21546 Konermann           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Silvana Konermann (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for her medicine and health project. She attends the Saechsisches Landesgymnasium Sankt Afra, Meissen, Germany.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

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Alternate Designations
 1998 QH34 = 2001 AZ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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