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JPL Small-Body Database Browser
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20482 Dustinshea (1999 NH40)
Classification: Main-belt Asteroid          SPK-ID: 2020482
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1601356802070751 4.2316e-08  
a 2.441865489276768 1.0648e-08 au
q 2.050835698177251 1.0071e-07 au
i 3.398641973282396 3.9499e-06 deg
node 105.0388145742199 7.4875e-05 deg
peri 129.4090953715628 7.5928e-05 deg
M 121.5456140603834 1.4995e-05 deg
tp 2458129.936948201753
(2018-Jan-11.43694820)
5.6466e-05 TDB
period 1393.737651143959
3.82
9.1161e-06
2.496e-08
d
yr
n .2582982526908973 1.6895e-09 deg/d
Q 2.832895280376286 1.2353e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1284  
   data-arc span      9464 days (25.91 yr)  
   first obs. used      1994-01-05  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54459  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:44:29  

Additional Information
 Earth MOID = 1.04138 au 
 Jupiter MOID = 2.16699 au 
 T_jup = 3.481 
[ 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 14.8   n/a MPO452460  
diameter diameter 2.877 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20482 Dustinshea           Discovered 1999 July 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Dustin James Shea (b. 1991) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his behavioral science project. He attends the Our Saviour School, Jacksonville, Illinois.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 NH40 = 2000 VH16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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