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JPL Small-Body Database Browser
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379548 (2011 AN21)
Classification: Main-belt Asteroid          SPK-ID: 2379548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03781016089659827 1.279e-06  
a 2.528055532623985 3.28e-08 au
q 2.432469346179937 3.2514e-06 au
i 9.182377680850241 1.2377e-05 deg
node 321.984315242499 5.2996e-05 deg
peri 246.0937252400711 0.0023302 deg
M 37.11419835173881 0.0025022 deg
tp 2458849.138325013795
(2019-Dec-31.63832501)
0.010203 TDB
period 1468.176746770038
4.02
2.8573e-05
7.823e-08
d
yr
n .2452020853701663 4.772e-09 deg/d
Q 2.623641719068033 3.404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      5844 days (16.00 yr)  
   first obs. used      2003-01-31  
   last obs. used      2019-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .51869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:11:47  

Additional Information
 Earth MOID = 1.44635 au 
 Jupiter MOID = 2.38863 au 
 T_jup = 3.433 
[ 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 17.1   n/a MPO423396  

379548 (2011 AN21)          Discovered 2006-Dec-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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