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20212 Ekbaltouma (1997 GR8)
Classification: Main-belt Asteroid          SPK-ID: 2020212
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06642282848334841 5.0362e-08  
a 3.036248562647359 1.9565e-08 au
q 2.834572345137821 1.6236e-07 au
i 8.271005396155148 7.1297e-06 deg
node 17.99900059241597 2.7898e-05 deg
peri 39.85100656311381 6.3644e-05 deg
M 301.9039635918289 5.9087e-05 deg
tp 2459512.351913481651
(2021-Oct-24.85191348)
0.00031857 TDB
period 1932.432843862719
5.29
1.8679e-05
5.114e-08
d
yr
n .1862936666302979 1.8007e-09 deg/d
Q 3.237924780156897 2.0865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      9556 days (26.16 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58106  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:09  

Additional Information
 Earth MOID = 1.85046 au 
 Jupiter MOID = 2.02553 au 
 T_jup = 3.222 
[ 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 14.66   n/a E2021B10  

20212 Ekbaltouma           Discovered 1997 Apr. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Ekbal Touma mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. She teaches at the John Cooper School, The Woodlands, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

Alternate Designations
 1997 GR8 = 1999 RR255 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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