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17884 Jeffthompson (1999 CD116)
Classification: Main-belt Asteroid          SPK-ID: 2017884
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1002634312397705 2.9154e-08  
a 2.293285110930805 7.6452e-09 au
q 2.063352476897805 6.9288e-08 au
i 1.39988879962027 4.7725e-06 deg
node 171.7900443603527 0.0001207 deg
peri 78.24738339829949 0.00012331 deg
M 319.5537237894723 2.5921e-05 deg
tp 2459143.015318126144
(2020-Oct-20.51531813)
9.1455e-05 TDB
period 1268.485490687953
3.47
6.3432e-06
1.737e-08
d
yr
n .2838030096857923 1.4192e-09 deg/d
Q 2.523217744963805 8.4118e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1409  
   data-arc span      9752 days (26.70 yr)  
   first obs. used      1993-08-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:42:32  

Additional Information
 Earth MOID = 1.04977 au 
 Jupiter MOID = 2.49182 au 
 T_jup = 3.590 
[ 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 15.0   n/a MPO309294  
diameter diameter 2.845 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.138   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17884 Jeffthompson           Discovered 1999 Feb. 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jeff Thompson (b. 1984) was awarded third place in the 2003 Intel International Science and Engineering Fair for his computer science project. He attends the Kinkaid High School, Houston, Texas, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040614/MPCPages.arcLast Updated: 2009-12-11

[ show close-approach data ]
Alternate Designations
 1999 CD116 = 1997 QQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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