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23818 Matthewlepow (1998 QZ50)
Classification: Main-belt Asteroid          SPK-ID: 2023818
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 .1733032132081454 7.2098e-08  
a 2.770843140196384 2.3416e-08 AU
q 2.290647120704603 1.9679e-07 AU
i 5.732725525690379 7.3096e-06 deg
node 146.1667685534065 5.851e-05 deg
peri 217.9252459245993 6.1009e-05 deg
M 175.8432103561484 1.7401e-05 deg
tp 2456177.614440398344
(2012-Sep-07.11444040)
7.8881e-05 JED
period 1684.675802134195
4.61
2.1355e-05
5.847e-08
d
yr
n .2136909662642165 2.7088e-09 deg/d
Q 3.251039159688165 2.7474e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      11347 days (31.07 yr)  
   first obs. used      1983-05-07  
   last obs. used      2014-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5633  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:14:25  

Additional Information
 Earth MOID = 1.29142 AU 
 T_jup = 3.308 
[ 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 14.4 mag n/a MPO296325  

23818 Matthewlepow           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Matthew Brice Lepow (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 Southfield School, Shreveport, Louisiana.
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 ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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