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227588 (2006 AH18)
Classification: Main-belt Asteroid          SPK-ID: 2227588
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301706592109851 7.4599e-08  
a 2.774558000797774 1.5101e-08 au
q 2.135936156735037 2.0268e-07 au
i 7.314503985300669 7.1503e-06 deg
node 306.1742625537834 4.2795e-05 deg
peri 201.8960105643192 4.4298e-05 deg
M 72.08388627968563 1.0414e-05 deg
tp 2458862.493672095904
(2020-Jan-13.99367210)		 4.7848e-05 TDB
period 1688.064896686438
4.62		 1.3781e-05
3.773e-08		 d
yr
n .2132619431318409 1.7411e-09 deg/d
Q 3.413179844860511 1.8577e-08 au
   Orbit Determination Parameters
   # obs. used (total)      483  
   data-arc span      7124 days (19.50 yr)  
   first obs. used      2000-11-20  
   last obs. used      2020-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49025  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:25:55  

Additional Information
 Earth MOID = 1.14967 au 
 Jupiter MOID = 1.62774 au 
 T_jup = 3.285 
[ 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 15.81   n/a E2021B55  
diameter diameter 4.280 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227588 (2006 AH18)          Discovered 2006-Jan-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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