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 ]  
14879 (1991 AL2)
Classification: Main-belt Asteroid          SPK-ID: 2014879
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719625849835206 4.442e-08  
a 2.525320696443913 1.5862e-08 AU
q 2.091060021571034 1.129e-07 AU
i 12.48449444081916 7.001e-06 deg
node 194.3982877773469 2.9032e-05 deg
peri 297.5089251709955 4.0602e-05 deg
M 308.1233561653212 2.8565e-05 deg
tp 2457211.723679998332
(2015-Jul-08.22368000)
0.00011665 JED
period 1465.794993248339
4.01
1.3811e-05
3.781e-08
d
yr
n .2456005114345535 2.314e-09 deg/d
Q 2.959581371316793 1.859e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1985-08-16  
   last obs. used      2015-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50907  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:40:16  

Additional Information
 Earth MOID = 1.13629 AU 
 T_jup = 3.401 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO319270  

14879 (1991 AL2)          Discovered 1991-Jan-07 by McNaught, R. H. at Siding Spring
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 AL2 = 1985 QM3 = 1998 XK77 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Apr-01 03:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin