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21510 Chemnitz (1998 KF36)
Classification: Main-belt Asteroid          SPK-ID: 2021510
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09811077635977666 4.2059e-08  
a 2.750649711958993 1.2992e-08 au
q 2.4807813332249 1.1882e-07 au
i 2.531376623790626 4.186e-06 deg
node 304.0816113061305 8.8095e-05 deg
peri 20.57143406453299 8.9801e-05 deg
M 311.8136072580833 1.8568e-05 deg
tp 2459619.535129966133
(2022-Feb-09.03512997)
8.6156e-05 TDB
period 1666.292955728194
4.56
1.1806e-05
3.232e-08
d
yr
n .2160484438000129 1.5307e-09 deg/d
Q 3.020518090693086 1.4267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      8906 days (24.38 yr)  
   first obs. used      1997-03-10  
   last obs. used      2021-07-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:00:33  

Additional Information
 Earth MOID = 1.46808 au 
 Jupiter MOID = 2.24919 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457136.5 (2015-Apr-24.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09607900365969022 4.1867e-08  
q 2.489865355515648 1.1783e-07 au
tp 2457949.504084297803
(2017-Jul-15.00408430)
8.7353e-05 TDB
node 304.189849606909 8.7863e-05 deg
peri 19.58048916653913 8.9664e-05 deg
i 2.533774647388433 4.1882e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      8906 days (24.38 yr)  
   first obs. used      1997-03-10  
   last obs. used      2021-07-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:00:33  

Additional Information
 Jupiter MOID = 2.24919 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.752806606547967E-15 -4.909079112525261E-15 9.894558702794383E-13 4.069708427315398E-15 2.178745164172628E-13 1.998960991634113E-16
q -4.909079112525261E-15 1.388493920664809E-14 -2.693992241911167E-12 -1.071053770196262E-14 -6.103730349033959E-13 -5.195364462481027E-16
tp 9.894558702794383E-13 -2.693992241911167E-12 7.630602610014422E-9 -1.756961416661031E-12 1.577785297730236E-9 3.542455370885452E-13
node 4.069708427315398E-15 -1.071053770196262E-14 -1.756961416661031E-12 7.719916555741735E-9 -7.712597849695615E-9 1.536027545590589E-10
peri 2.178745164172628E-13 -6.103730349033959E-13 1.577785297730236E-9 -7.712597849695615E-9 8.039595284321863E-9 -1.53385032329239E-10
i 1.998960991634113E-16 -5.195364462481027E-16 3.542455370885452E-13 1.536027545590589E-10 -1.53385032329239E-10 1.754119311402417E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.25   n/a E2020-QM5  
diameter diameter 5.243 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.112   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21510 Chemnitz           Discovered 1998 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Mario Chemnitz (b. 1986) was awarded second place in the 2005 Intel International Science and Engineering Fair for his physics project. He attends the Paul-Gerhardt-Gymnasium Graefenhainichen, Graefenhainichen, Sachsen-Anhalt, Germany.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050822/MPCPages.arcLast Updated: 2005-08-26

Alternate Designations
 1998 KF36 = 1997 EL42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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