Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1727852073634768 7.6027e-08  
a 2.77222549624245 2.5332e-08 AU
q 2.293225939015881 2.0776e-07 AU
i 5.731340688090008 7.8519e-06 deg
node 146.1628565692325 6.2942e-05 deg
peri 218.0148670554827 6.5879e-05 deg
M 133.0288284487439 1.9174e-05 deg
tp 2456177.505055253602
(2012-Sep-07.00505525)
8.778e-05 JED
period 1685.936670449729
4.62
2.3109e-05
6.327e-08
d
yr
n .2135311523320558 2.9268e-09 deg/d
Q 3.251225053469018 2.9709e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      11261 days (30.83 yr)  
   first obs. used      1983-05-07  
   last obs. used      2014-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59155  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:18:16  

Additional Information
 Earth MOID = 1.29255 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 14.3 mag n/a MPO253525  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-18 00:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin