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21356 Karlplank (1997 FG4)
Classification: Main-belt Asteroid          SPK-ID: 2021356
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03245758060300388 4.3219e-08  
a 2.683765331241963 1.1012e-08 au
q 2.59665680168363 1.2107e-07 au
i 4.523068550251419 3.7536e-06 deg
node 195.5865025273198 4.3128e-05 deg
peri 136.7924811942472 7.1579e-05 deg
M 5.554611127929398 5.4986e-05 deg
tp 2459175.721991729456
(2020-Nov-22.22199173)
0.00024533 TDB
period 1605.887932018212
4.40
9.8838e-06
2.706e-08
d
yr
n .2241750453579703 1.3797e-09 deg/d
Q 2.770873860800296 1.1369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1602  
   data-arc span      10537 days (28.85 yr)  
   first obs. used      1992-01-28  
   last obs. used      2020-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:10  

Additional Information
 Earth MOID = 1.58663 au 
 Jupiter MOID = 2.32822 au 
 T_jup = 3.370 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.35   n/a E2021B10  
diameter diameter 8.849 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21356 Karlplank           Discovered 1997 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Karl James Plank (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his chemistry project. He attends the Squalicum High School, Bellingham, Washington.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050224/MPCPages.arcLast Updated: 2005-02-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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