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72231 (2001 AC16)
Classification: Main-belt Asteroid          SPK-ID: 2072231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466830387669494 3.7544e-08  
a 2.425098564911727 8.7828e-09 au
q 2.069377738101107 8.858e-08 au
i 2.704960583977444 4.6051e-06 deg
node 154.2780072968955 7.3132e-05 deg
peri 296.116590375565 7.4758e-05 deg
M 120.9925680450398 1.4838e-05 deg
tp 2458736.894357929702
(2019-Sep-10.39435793)
5.6262e-05 TDB
period 1379.407296183506
3.78
7.4935e-06
2.052e-08
d
yr
n .2609816556690941 1.4178e-09 deg/d
Q 2.780819391722348 1.0071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1002  
   data-arc span      7545 days (20.66 yr)  
   first obs. used      1999-10-14  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:00:56  

Additional Information
 Earth MOID = 1.08736 au 
 Jupiter MOID = 2.40124 au 
 T_jup = 3.495 
[ 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 15.75   n/a E2021B10  
diameter diameter 4.404 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72231 (2001 AC16)          Discovered 2001-Jan-02 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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