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 ]  
17481 (1991 PE11)
Classification: Main-belt Asteroid          SPK-ID: 2017481
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721219044181356 8.6255e-08  
a 2.728357306027386 3.0163e-08 AU
q 2.258747250580818 2.4507e-07 AU
i 4.783934994018576 8.3152e-06 deg
node 340.6665260529129 6.452e-05 deg
peri 9.324722907998133 6.6682e-05 deg
M 49.93772037147682 2.0969e-05 deg
tp 2456772.162886465241
(2014-Apr-24.66288646)
9.3639e-05 JED
period 1646.077559428698
4.51
2.7297e-05
7.474e-08
d
yr
n .2187017239485026 3.6268e-09 deg/d
Q 3.197967361473953 3.5355e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      8363 days (22.90 yr)  
   first obs. used      1991-08-05  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53877  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:38:47  

Additional Information
 Earth MOID = 1.25305 AU 
 T_jup = 3.329 
[ 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 13.9 mag n/a MPO229174  

17481 (1991 PE11)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PE11 = 1999 JS105 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-03 02:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin