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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581785538304947 7.696e-08  
a 3.106600467019652 3.2471e-08 AU
q 2.615202897817344 2.459e-07 AU
i 3.950700204329553 5.9503e-06 deg
node 96.35206772837626 0.0001152 deg
peri 251.5918642019026 0.00011682 deg
M 8.088887393510735 1.7192e-05 deg
tp 2456955.562095135474
(2014-Oct-25.06209514)
9.5563e-05 JED
period 1999.984047770003
5.48
3.1356e-05
8.585e-08
d
yr
n .1800014357121511 2.8221e-09 deg/d
Q 3.59799803622196 3.7607e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      632  
   data-arc span      8522 days (23.33 yr)  
   first obs. used      1991-05-14  
   last obs. used      2014-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5652  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:49:14  

Additional Information
 Earth MOID = 1.61231 AU 
 T_jup = 3.197 
[ 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 14.2 mag n/a MPO302209  

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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