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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722466049339708 4.4392e-08  
a 2.525909111831881 1.6026e-08 au
q 2.090829842947058 1.1308e-07 au
i 12.48757958417634 6.985e-06 deg
node 194.3801811973219 2.9008e-05 deg
peri 297.4002451032681 4.053e-05 deg
M 46.43638687881012 2.865e-05 deg
tp 2457211.361070678656
(2015-Jul-07.86107068)
0.00011633 JED
period 1466.307332079589
4.01
1.3955e-05
3.821e-08
d
yr
n .2455146967651251 2.3365e-09 deg/d
Q 2.960988380716705 1.8786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      994  
   data-arc span      10798 days (29.56 yr)  
   first obs. used      1985-08-16  
   last obs. used      2015-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50979  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:50:53  

Additional Information
 Earth MOID = 1.13588 au 
 Jupiter MOID = 2.17322 au 
 T_jup = 3.400 
[ 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 ]
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