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20338 Elainepappas (1998 HA86)
Classification: Main-belt Asteroid          SPK-ID: 2020338
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07243275527035635 3.3268e-08  
a 2.907791415360764 1.3543e-08 au
q 2.697172071394694 9.447e-08 au
i .9792070902517817 3.3583e-06 deg
node 333.8101748275257 0.00017926 deg
peri 332.0250091111129 0.00018054 deg
M 121.0033773653381 2.1678e-05 deg
tp 2458591.750954301541
(2019-Apr-18.25095430)
0.000109 TDB
period 1811.103633824867
4.96
1.2653e-05
3.464e-08
d
yr
n .1987738267852274 1.3887e-09 deg/d
Q 3.118410759326833 1.4524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1521  
   data-arc span      15205 days (41.63 yr)  
   first obs. used      1979-07-24  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .526  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:17:28  

Additional Information
 Earth MOID = 1.68016 au 
 Jupiter MOID = 2.04687 au 
 T_jup = 3.280 
[ 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 14.6   n/a MPO431733  

20338 Elainepappas           Discovered 1998 Apr. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Elaine Pappas mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. She teaches at the Cedar Shoals High School, Athens, Georgia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

Alternate Designations
 1998 HA86 = 1979 OJ8 = 2000 VO26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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