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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581785550330003 7.6945e-08  
a 3.106600465320115 3.2075e-08 AU
q 2.615202892650933 2.4575e-07 AU
i 3.95069890030977 5.7516e-06 deg
node 96.35206821438443 0.00011519 deg
peri 251.5918628708812 0.00011679 deg
M 8.088888671037429 1.6764e-05 deg
tp 2456955.562088075037
(2014-Oct-25.06208808)
9.3207e-05 JED
period 1999.984046128798
5.48
3.0974e-05
8.48e-08
d
yr
n .180001435859862 2.7877e-09 deg/d
Q 3.597998037989297 3.7149e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      8596 days (23.53 yr)  
   first obs. used      1991-05-14  
   last obs. used      2014-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55479  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:58:51  

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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