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23922 Tawadros (1998 SR135)
Classification: Main-belt Asteroid          SPK-ID: 2023922
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577848349059125 5.8888e-08  
a 3.105472019990535 2.8565e-08 au
q 2.615475630011398 1.8224e-07 au
i 3.950787004448055 5.4104e-06 deg
node 96.34800619862605 9.0339e-05 deg
peri 251.5157481835366 9.217e-05 deg
M 116.2342994573944 1.6224e-05 deg
tp 2456955.110850621229
(2014-Oct-24.61085062)
9.0488e-05 JED
period 1998.894430137824
5.47
2.758e-05
7.551e-08
d
yr
n .1800995563208298 2.4849e-09 deg/d
Q 3.595468409969673 3.3072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      815  
   data-arc span      9089 days (24.88 yr)  
   first obs. used      1991-05-14  
   last obs. used      2016-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5627  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:42:09  

Additional Information
 Earth MOID = 1.6113 au 
 Jupiter MOID = 1.82131 au 
 T_jup = 3.198 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO358855  

23922 Tawadros           Discovered 1998 Sept. 26 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kyrillos Bahaa Tawadros (b. 1993) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his earth and space science project. He attends the Doolen Middle School, Tucson, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

[ show close-approach data ]
Alternate Designations
 1998 SR135 = 1999 XB219 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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