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21913 Taylorjones (1999 VK28)
Classification: Main-belt Asteroid          SPK-ID: 2021913
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05480591664059284 3.5447e-08  
a 2.71086099406517 1.2964e-08 au
q 2.562289772400199 9.5579e-08 au
i 1.646332852649061 3.9528e-06 deg
node 242.1302075475614 0.00014157 deg
peri 174.5102166029514 0.00014657 deg
M 259.7430249495524 3.8232e-05 deg
tp 2459654.516248727385
(2022-Mar-16.01624873)
0.00017388 TDB
period 1630.26911054932
4.46
1.1694e-05
3.202e-08
d
yr
n .2208224382529691 1.584e-09 deg/d
Q 2.85943221573014 1.3674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1383  
   data-arc span      10348 days (28.33 yr)  
   first obs. used      1992-03-02  
   last obs. used      2020-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52882  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:54:13  

Additional Information
 Earth MOID = 1.57311 au 
 Jupiter MOID = 2.32612 au 
 T_jup = 3.360 
[ 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 14.27   n/a E2021B10  
diameter diameter 3.598 km 0.751 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21913 Taylorjones           Discovered 1999 Nov. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Taylor Wesley Jones (b. 1992) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his biochemistry, medicine, health, & microbiology project. He attends the Heritage Middle School, Maryville, Tennessee.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

Alternate Designations
 1999 VK28 = 1992 ER23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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