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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719625795512462 4.4628e-08  
a 2.525320691553761 1.6262e-08 AU
q 2.091060031240039 1.1319e-07 AU
i 12.48449405867666 7.1218e-06 deg
node 194.3982877221941 2.9047e-05 deg
peri 297.508921701658 4.0687e-05 deg
M 308.1233617582753 2.8834e-05 deg
tp 2457211.723656612229
(2015-Jul-08.22365661)
0.00011781 JED
period 1465.794988990685
4.01
1.4159e-05
3.877e-08
d
yr
n .2456005121479425 2.3724e-09 deg/d
Q 2.959581351867483 1.9059e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      10716 days (29.34 yr)  
   first obs. used      1985-08-16  
   last obs. used      2014-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51657  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:25:20  

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 (413)
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 ]
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