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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07250414360053302 3.4834e-08  
a 2.907050112777835 1.4561e-08 au
q 2.696276933947045 1.0072e-07 au
i .9792065723504838 3.8348e-06 deg
node 333.8112930998075 0.00017966 deg
peri 331.8292372101305 0.0001811 deg
M 81.43546770485807 2.2548e-05 deg
tp 2458590.967569704293
(2019-Apr-17.46756970)
0.00011369 TDB
period 1810.411102945742
4.96
1.3602e-05
3.724e-08
d
yr
n .1988498631135435 1.494e-09 deg/d
Q 3.117823291608624 1.5617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1329  
   data-arc span      14774 days (40.45 yr)  
   first obs. used      1979-07-24  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53798  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:18:27  

Additional Information
 Earth MOID = 1.68124 au 
 Jupiter MOID = 2.04787 au 
 T_jup = 3.281 
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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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