Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
20481 Sharples (1999 NW37)
Classification: Main-belt Asteroid          SPK-ID: 2020481
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186781676625935 3.784e-08  
a 2.402440650980861 8.3134e-09 au
q 2.117323396604324 8.9178e-08 au
i 2.922276162837739 3.3568e-06 deg
node 76.7303484601092 7.9287e-05 deg
peri 244.9379361352018 8.0884e-05 deg
M 98.63184131853266 1.5525e-05 deg
tp 2458227.857771235986
(2018-Apr-19.35777124)
5.8447e-05 TDB
period 1360.120632056358
3.72
7.0599e-06
1.933e-08
d
yr
n .2646824050126482 1.3739e-09 deg/d
Q 2.687557905357398 9.3001e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1498  
   data-arc span      13879 days (38.00 yr)  
   first obs. used      1981-10-30  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54599  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:23:27  

Additional Information
 Earth MOID = 1.10573 au 
 Jupiter MOID = 2.57699 au 
 T_jup = 3.513 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO416926  

20481 Sharples           Discovered 1999 July 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
David R. Sharples (b. 1992) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his physical science project. He attends the Chapin School, Princeton, New Jersey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 NW37 = 1981 UL7 = 1998 GW11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-27 03:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin