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305338 (2008 AB111)
Classification: Main-belt Asteroid          SPK-ID: 2305338
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119314717613297 7.241e-08  
a 3.148683660316447 5.9938e-08 au
q 2.796246864106376 2.4314e-07 au
i 14.55103691649866 9.38e-06 deg
node 306.5105570834976 3.2437e-05 deg
peri 333.0863059135766 5.2783e-05 deg
M 293.8571365224793 4.2488e-05 deg
tp 2459375.449228531504
(2021-Jun-09.94922853)
0.00024243 TDB
period 2040.760184463685
5.59
5.8271e-05
1.595e-07
d
yr
n .1764048528291964 5.037e-09 deg/d
Q 3.501120456526517 6.6646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      6620 days (18.12 yr)  
   first obs. used      2001-12-15  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62211  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:53:46  

Additional Information
 Earth MOID = 1.78779 au 
 Jupiter MOID = 1.74934 au 
 T_jup = 3.149 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO386267  
diameter diameter 3.925 km 0.614 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305338 (2008 AB111)          Discovered 2008-Jan-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 AB111 = 2009 EU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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