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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456883.5 (2014-Aug-14.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07516059564795211 3.4814e-08  
q 2.68900029619847 1.0116e-07 au
tp 2456784.358998783515
(2014-May-06.85899878)
0.000112 TDB
node 334.1340750914343 0.00017903 deg
peri 332.4056349604202 0.00018037 deg
i .9819548741716989 3.838e-06 deg
  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
 Jupiter MOID = 2.04787 au 
 T_jup = 3.281 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.212031356401763E-15 -3.490128925728349E-15 7.790870650265355E-13 2.233855059914081E-15 1.292726275956636E-13 9.919217251375936E-17
q -3.490128925728349E-15 1.023245659620582E-14 -2.626022271154514E-12 -8.576798569945441E-15 -4.428648445221831E-13 -2.019857051313924E-16
tp 7.790870650265355E-13 -2.626022271154514E-12 1.25429221992473E-8 -8.568991839488655E-12 2.470016064168951E-9 -8.984412355957592E-14
node 2.233855059914081E-15 -8.576798569945441E-15 -8.568991839488655E-12 3.205083461857077E-8 -3.204767168419379E-8 -2.077624843828199E-11
peri 1.292726275956636E-13 -4.428648445221831E-13 2.470016064168951E-9 -3.204767168419379E-8 3.253394550082416E-8 2.075319247255242E-11
i 9.919217251375936E-17 -2.019857051313924E-16 -8.984412355957592E-14 -2.077624843828199E-11 2.075319247255242E-11 1.473052484951202E-11

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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